@article { author = {Kwaiz, Fayza}, title = {POPULATION DYNAMICS OF BLACK PARLATORIA SCALE, Parlatoria ziziphi (LUCAS) (HEMIPTERA : DIASPIDIDAE) ON SOUR ORANGE (Citrus aurantum L.) AT QALUBYIA GOVERNORATE, EGYPT.}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3747-3756}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.123904}, abstract = {The population dynamics of black parlatoria scale, Parlatoria ziziphi (Lucas) (Hemiptera: Diaspididae) were studied on sour orange (citrus aurantum) for two successive years (2005-2006) at Qalubyia Governorate. The obtained results revealed that P. ziziphi had three generation a year. The highest generation occurred in summer followed by moderate generation in autumn and relatively smaller generation in winter. The summer generation peaked in early June and started from mid March or early April until mid July with duration of 3.5 - 4.5 months; the autumn generation peaked in early October and extended from mid July or early August to late December with duration of 5 – 5.5 months whereas the winter generation peaked in mid January and started from early January to early April and lasted for 3 months.  The main weather factors (daily mean max. and min. temperatures and % R.H.) affected greatly on the annual generations of P. ziziphi in both studied years. The summer generation affected with 51 - 52% , while autumn and winter generations affected  with  47 - 63.4% and 93.5 - 94.8%  respectively.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_123904.html}, eprint = {https://jppp.journals.ekb.eg/article_123904_9221734b9f4ccfa953a86cb2499c9484.pdf} } @article { author = {Shahin, A. and Abu Aly, A. and Youssef, I. and El-Shimy, A.}, title = {GENE-POSTULATION FOR STEM RUST RESISTANCE IN TWENTY CERTAIN EGYPTIAN WHEAT VARIETIES}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3757-3763}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.124905}, abstract = {Matching of sixteen monogenic lines and twenty wheat (Triticum aestivum L.) varieties representing the Egyptian germplasm inoculated with thirty different stem rust isolates to postulate stem rust resistance gene (Sr). Genes were determined according to the infection types (IT) to different Puccinia graminis f. sp. tritici isolates for seedling resistance in wheat varieties. All of the tested varieties were probably present in Sr7b and Sr8a, with the exception of Giza 160 and Sohag-3, whereas, Sr9e gene were detected in Gemmeiza-7 but it was not detected in the rest of tested varieties. Thirteen genes were probably present in Gemmeiza-7 (the highest), however Sakha 61, Sohag-3 and Sakha 160 wee included the   least genes (Sr's). Sr29, Sr30, Sr36 followed by Sr7b and Sr8a were most commonly postulated and having the highest frequency, while Sr9e, Sr21, Sr26 SrTt-1 appeared in lower frequencies within the used Egyptian wheat varieties.}, keywords = {stem rust,Sr's genes,postulation,infection type}, url = {https://jppp.journals.ekb.eg/article_124905.html}, eprint = {https://jppp.journals.ekb.eg/article_124905_0eeee50ce60d89aa9545b031eeefba04.pdf} } @article { author = {Mahmoud, M. and Nour El - din, M. and Emam, A.}, title = {EFFECT OF INSECT INFESTATION ON THE MORPHOLOGICAL CHARACTERS OF SOME ROSE VARAIETIES}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3765-3774}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.124909}, abstract = {Experiments were carried out to study the effect of infestation by Macrosiphum rosae (L.) and Frankliniella occidentalis (Pergande) on the morphological characters of eight rose varieties (four local var. and four import var.).Experiments were done in El-Orman garden, Giza Governorate throughout two years (2004 and 2005). Results indicated that the all the morphological characters (colour of the flower, number of the petals per flower, the flower diameter, weight of the flower, the stem length, colour of the leaves, vase life and annual production) were reduced after infestation by the two pests. The effect of M. rosae was higher than the effect of F. occidentalis, the results also indicated that the infestation bythe two insectsconcentrated on the vascular bundles and barynshema in the tissue of the rose petals and occurs damage in these parts.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_124909.html}, eprint = {https://jppp.journals.ekb.eg/article_124909_ea3f2e460766a90e157f81e36be50bc8.pdf} } @article { author = {Awad, H. and Kishk, A. and El-Zahaby, H. and El-Shehawy, A.}, title = {EFFECT OF SOME CHEMICAL INDUCERS RESISTANCE FOR CONTROLLING DOWNY MILDEW DISEASE OF GRAIN SORGHUM AND ITS IMPACT ON BIOCHEMICAL CHANGES}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3775-3784}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.124914}, abstract = {Fourdifferentchemical inducers for resistance and metalaxyl fungicide were tested to control sorghum downy mildew disease (Sorghum vulgare L.) caused by Peronosclerospora sorghi (Weston and Uppal) C.G. Shaw. This evaluation was conducted at Gemmeiza Agricultural Research Station, El-Gharbea Governorate, Egypt in 2006 and 2007 seasons. Combined data reveal that metalaxyl occupied the first rank in controlling the disease. Salicylic acid was  the best of the inducers in controlling sorghum downy mildew disease. While, potassium di-phosphate (K2 Hpo4) was the least effective one in this respect . Seedlings sprayed with salicylic acid gave the highest increase in 1000 grain weight in comparison with non-sprayed. In the same time spraying with salicylic acid and zinc sulphate increased grain sorghum leaves content of chlorophyll, nitrogen, protein and phosphorus. While potassium di-phosphat increased the leaves content of chlorophyll and potassium. Iron sulphate gave the lowest values in grain sorghum leaves content. The enzymatic activity of peroxidase and polyphenoloxidase and phenolic compounds contents in the grain sorghum leaves showed the highest values with salicylic acid and potassium di-phosphate followed by zinc sulphate . While iron sulphate gave the lowest values in this regard. No significant differences were obtained between metalaxl and the other compounds in the plant height and leaf area, while it showed the highest value in head length. However, metalayl followed by salicylic acid showed significant affect in increasing grain yield comparing with the other compounds. salicylic acid, potassium sulphate and metalaxyl showed  highest values in increasing activities of phenols and enzymes. }, keywords = {downy mildew,Sorghum vulgare,Peronosclerospora sorghi,Metalaxyl fungicide,Salicylic acid,Potassium di-phosphate,Zinc Sulphate,Iron sulphate,peroxidase,polyphenoloxidase,Phenolic compounds}, url = {https://jppp.journals.ekb.eg/article_124914.html}, eprint = {https://jppp.journals.ekb.eg/article_124914_1979b705436cc18fc2b173f75d3aa736.pdf} } @article { author = {Awad, H. and Sadoma, M. and El-Ghonemy, M.}, title = {RESPONSE OF SOME COMMERCIAL MAIZE HYBRIDS AND THEIR PARENTS TO DOWNY MILDEW DISEASE AND YIELD LOSSES}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3785-3792}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.124916}, abstract = {Thirty four white and yellow maize (Zea mays L.) inbred lines and hybrids were evaluated to downy mildew disease caused by Peronosclerospora sorghi (Weston and Uppal) C.G. Shaw. This study was performed in 2006 -20007 growing seasons at Gemmeiza Agricultural Research Station, El-Gharbea Governorate,  Egypt. Out of the white maize genotypes, only the inbred lines Gm.22 and Gm.21were highly resistance( 0 and 0.48% disease infection, respectively) . The other inbred lines showed infection types ranged from resistance (Gm.4 and Gm.30), moderate resistance (Gm.14, Gm.27 and Sd.7). Both of Gm.2 and Sd.63 showed moderate to susceptible infection types. The white hybrids (S.c.11, S.c.12, S.c.13, S.c.14 and S.c.26 ) were moderately resistant, while, hybrids S.c.21, S.c.22, S.c.27, T.w.c.321, T.w.c.325 and T.w.c326were moderately susceptible then hybrids S.c.10, S.c.15, S.c.25, T.w.c.322 and T.w.c.327were susceptible. It can be concluded that inbred lines Gm.4, Gm.21, Gm.30 and Sd.7 play a role in conferring resistance in their hybrids and could be considered as sources of resistance to downy mildew. All the tested yellow maize inbred lines and hybrids showed moderately susceptible, and susceptible infection types. Losses in grain yield were in a parallel line with disease infection. The yellow maize genotypes scored the highest percentage of yield reduction compared with the white genotypes . All of the white inbreds and hybrids showed losses in grain yield except the inbred line Gm.22. The highest % of grain yield losses were detected in the inbred lines Sd.63 and Gm.2 (31.19 and 21.22%, respectively) as well as the hybrids S.c.10 (34.48%), S.c.21 (31.61%) and S.c.26 (31.26%). Concerning with yellow maize genotypes, the highest losses % were noticed in the inbred lines 1021 and 1002 (66.11 and 64.85%, respectively) as   well as the hybrids T.w.c. 352 (87.47%), S.c.52 (63.79%), S.c.155 (73.77%) then T.w.c351 (51.93%).}, keywords = {Zea mays L,Peronosclerospora sorghi,genotypes,Hybrids,Inbred Lines,Resistance. Single crosses (S.c.),Three way crosses (T.w.c.)}, url = {https://jppp.journals.ekb.eg/article_124916.html}, eprint = {https://jppp.journals.ekb.eg/article_124916_10a86aeb72fce72aa15b826d7dbc9d82.pdf} } @article { author = {El-Marzoky, Hanan}, title = {FIRST RECORD OF PEPPER ANTHRACNOSE DISEASE CAUSED BY Colletotrichum coccodes IN EGYPT.}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3793-3810}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.124930}, abstract = {  Six isolates of Colletotrichum were obtained from naturally infected sweet and hot pepper fruits obtained from greenhouses and open fields collected from Ismailia Governorate. Identification using morphological characterizationindicate that the pathogen are Colletotrichum coccodes. Pathogenicity test of six C.coccodes isolates were tested on wounded and unwounded pepper fruits of Markony Spain hot pepper cultivar. Under lab and greenhouse conditions and in vivo indicate that isolate No.1 obtained from Abo-Swear was the virulent and aggressive one. Reactions of pepper cultivars to be infected  by the virulent isolate of C.coccodes under laboratory conditions revealed that Markony cultivar was the most susceptible one followed by red hot pepper of the same cultivar, green 7182, and yellow Derby sweet pepper cultivars. On the other hand, Baramo orange sweet pepper cv. was moderately susceptible to C.coccodes. On the contrary, Ferrari red sweet pepper cv. was resistant to the highest virulent isolate of C. coccodes. In the same time, the rotted area on the fruits increased with increasing the period of incubation at 26±1 oC from 5 to 9 days.Host range reactions of some plant fruits to infect with C.coccodes indicate that the pathogen was able to attack tomato and apple fruits while fruits of eggplant, strawberry, peach, orange, lime, papaya, guava and mango showed no symptoms. Effect of plant extracts on the growth of C.coccodes revealed that garlic at the highest concentration (20%) was found to be the best in the inhibition of fungal growth followed by lime,onion , sweet basil and mint extracts .The fungicides Euparen, Octave and Swtich  inhibited the growth of C.coccodes completely at all concentrations tested in vitro ( 100, 200, 300, 400 and 500ppm). Trichoderma harzianum followed by Chaetomium spirale and C. globosum caused considerable reduction of C.coccodes mycelial growth. Hot water treatments of inoculated hot pepper fruits were more effective with increasing the periods of fruit dipping from 2 to 3 minutes and increasing temperature of water from 50oC to55oC but unfortunately the treatments decrease the fruit quality and fruit shelf life. Dipping inoculated pepper fruits in T. harzianum suspension reduced the lesions of anthracnose size compared with the control. Different plant extracts reduced the severity of pepper fruit rots. Lime extract was the effective one in decreasing area infected with C.coccodes followed by Sweet basil, Mint and pepper extracts  }, keywords = {Colletotrichum coccodes,morphological characterization,Markony Spain hot pepper,Derby sweet pepper,Trichoderma harzianum,Chaetomium spirale and C. globosum}, url = {https://jppp.journals.ekb.eg/article_124930.html}, eprint = {https://jppp.journals.ekb.eg/article_124930_29aaf7f2965aec33bed863efb9e881fa.pdf} } @article { author = {Marzouk,, E. and Abdel – Lateef, M. and Ali, F. and Abou-Donia, S.}, title = {EVALUATION OF SOME HERBICIDES IN CONTROLLING WEEDS IN WHEAT (Triticum aestivum L.)}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3811-3823}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166750}, abstract = {Field trials were conducted during 2004-05 and 2005-06 seasons  at Motobis district, Kafr El-Sheikh Governorate to evaluate the efficiency of some post-emergence herbicides in controlling broadleaf and grassy weeds in wheat cv. Sakha 168 .The treatments included Brominal 24%  EC, Framinal 24% EC, Koril W 24% EC, Pardner22.5% EC, Proturon 50% SC, IPFlow 50% FL, Turinex 50% SC, Swat 50% SC, Tarok 71.4% WG, Granstar 75% DF, Granon 75% DF, Korestar 75% DF, Ecopart 2% SC and handweeding. The herbicides were applied at 2 and 4-leaf stages of wheat and handweeding was carried out twice at 20 and 40 days after sowing. Results showed that all weed control treatments significantly reduced weed fresh weights and increased grain yield of wheat.However, all tested herbicides gave higher weed control than handweeding . Morever, these herbicides provided better control at 2-leaf stage than at 4-leaf stage of wheat.       Results also indicated that the herbicides formulations could affect the herbicidal efficiency . Generally ,    Brominal, Framinal and Granstar achieved the best weed control treatments and gave maximum grain yield in the two tested seasons.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_166750.html}, eprint = {https://jppp.journals.ekb.eg/article_166750_1f3ca7eda651862cb73c55e69f8b6db9.pdf} } @article { author = {Gouda,, M. and El-Fahar, Samia and El-Shoraky, Fathia}, title = {EFFECT OF SOME ESSENTIAL OILS ON CONTROLLING SUGAR BEET DAMPING - OFF AND ROOT ROT DISEASES CAUSED BY MANY SERIOUS SOIL BORNE FUNGAL PATHOGENS IN NILE DELTA REGION .}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3825-3836}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166756}, abstract = {Testing the effect of some essenstial oils on controlling of some causal pathogens of sugar beet plants in Nile Delta soil,( Sclerotium rolfsii Sacc.; Rhizoctonia solani Khun.; Fusarium oxysporum Schlech and Macrophomina phaseolina) (Tassi) Goid. In vitro, oils of Syzygium aromaticum L. (clove), Cuminum cyminum L. (cumin), Ocimum basilicum L.(basil) Mentha viridis (mint) were effective as inhibitors of the linear growth of S. rolfsii R. solani, M. Phaseolina at the concentration of 1500 ppm. On the other hand, they were affected slightly the linear growth and sporulation of F. Oxysporum  at the concentration of 2000 ppm. At the same time, increasing the concentration of the tested materials significantly reduced the linear growth of all the tested pathogens.           Under greenhouse and field conditions, data show that oils have significant effect in improving the number of survived seedlings and reduce of root rot. Oils of Syzygium aromaticum L. (Clove) and Cuminum syminum L. (Cumin) were suprior than the other materials in reducing infection with pre- and post damping - off and root rots of sugar beet as well as the disease severity. The rest oils were less effective in decreasing the disease incidence. Oils improved morpholigical characters expressed as plant height, Leaf area and dry weight per plant,  also increasing the yield component, total soluble sugars (TSS), sucrose percent in root and sugar purity.          The fungicide Rizolex T. 50 was used for comparative studies in controlling these diseases.}, keywords = {Sugar beet,Root rot diseases,Soil borne pathogens (S. rolfsii,R. solani,F. oxysporum and M. phaseolina ),Essential oils}, url = {https://jppp.journals.ekb.eg/article_166756.html}, eprint = {https://jppp.journals.ekb.eg/article_166756_9b99961aed9310cdebb9c9328fc9f655.pdf} } @article { author = {El-Sheheby, A. and Al- Ashaal, M. and Tadrous, M.}, title = {REDUCTIONS GARLIC DISEASE BY MICRO-ELEMENT FOLIAR SPRAY}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3837-3842}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166763}, abstract = {    Foliar spray treatments with zinc, copper, manganese, iron and boron on Chinese garlic grown in a field at kaha, kalubia Gov. during 2005-2006 and 2006-2007 growing seasons was performed. All treatments significantly reduced downy mildew, purple blotch and rust foliar diseases of garlic. Highest disease reductions and increase in yield were mostly detected with zinc, manganese, iron and boron once sprayed at the rate of 100 g/fed 60 days after planting. While the most effective copper treatment for controlling diseases was detected at the rate of 50 g/fed twice sprayed 60 followed by 90 day intervals after planting. Mean percentages of diseases reduction obtained with the fore-mentioned treatments reached 36.3%, 60%, 65.5% for downy mildew, purple blotch and rust diseases, respectively. While mean increase in garlic yield reached 55% over control treatment. Other treatments were less effective.  }, keywords = {}, url = {https://jppp.journals.ekb.eg/article_166763.html}, eprint = {https://jppp.journals.ekb.eg/article_166763_d0334b51f87d1aa91bb92eb69efa5b4f.pdf} } @article { author = {Nour-EL-Din,, Mona}, title = {PATHOGENICITY OF FUSARIUM VERTICILLOIDES ON MAIZE RELATED TO DETECTABLE FUMONISIN B1}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3843-3852}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166769}, abstract = {Aggressiveness of 10 Fusarium verticilloides isolates originated from naturally infected maize grains were studied towards susceptible cultivar ,Three Way Cross(TWC-310) seedling. Isolates differentiation has been done based on pathogenicity parameters as: a percentage of non-emerged seedlings, survival plants, plant vigour and disease severity. All tested isolates expressed various degrees of pathogenic capabilities as slightly, moderately and highly virulent. Percentage of survival plants and vigour were reduced, while disease severity ratio increased from 2.7 - 51.6%. Fumonisin production can play a role not only in plant pathogenicity but also in pathogen aggressiveness. The study suggested to correlate between the ability of examined isolates to produce that mycotoxin in vitro with their phytotoxicity behaviour. Isolates have been screened if some or all can synthesize fumonisin B1, whereas relatively different levels were detectable ranging from (400-1.680 µg/ mL). So, positive relationship between the aggressiveness of tested Fusarium isolates and their ability to produce this metabolite in vitro.}, keywords = {F. verticilloides,Maize,fumonisin B1}, url = {https://jppp.journals.ekb.eg/article_166769.html}, eprint = {https://jppp.journals.ekb.eg/article_166769_f6fcf7553a9d1525875bee24c9cb90e6.pdf} } @article { author = {Nour-El-Din, Mona and Saleh, M. and Hafez, E.}, title = {STUDY THE VARIATION OF SUGAR BEET Rhizoctonia solani BY PCR (rDNA-ITS SEQUENCES)}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3853-3868}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166775}, abstract = {Rhizoctonia solani Kühn, teleomorph Thanatephorus cucumeris (Frank) Donk is one of the important sugar beet  soil borne pathogen and can damage any part or all of a plant. Isolates divided into types or groups (AGs) based on the anastomosis behaviour of individual isolates. Crown and root rot is primarily caused by AG2-2, while damping-off in seedling and foliar blight signs are generally attributed to AG4. the various AG types represent genetic deversity  within the species. Three R. solani isolates collected from different localities at West-Nubaria region, showing characteristic sugar beet crown and root rot symptoms, were chosen and compared to the well- characterized R. solani (tweleve isolates) obtained from different hosts. All fifteen R. solani tested isolates observed show different levels of pathogenicity by inducing chlorosis, wilting, crown rot, root rot and damping-off on inoculated sugar beet. Data based on the morphological characteristices of the pathogen, pathogenicity tests, hyphal compatibility reaction and sequencing analysis of the ITS  region (internal transcribed spacer) of ribosomal DNA of the tested isolates in order to detect their relatedness. Sequence analysis showed that these isolates were varied genetically, where data could be genotype them into two main clusters including AG2-2 and AG4 groups. Additionally, phylogenetic tree recorded the relationship between ITS sequence of rDNA for those tested isolates.}, keywords = {Sugar beet,Rhizoctonia solani,Anastomosis groups,PCR (rDNA,ITS region)}, url = {https://jppp.journals.ekb.eg/article_166775.html}, eprint = {https://jppp.journals.ekb.eg/article_166775_1f1232c59ce2d39541a100a175fc11b1.pdf} } @article { author = {Sehly, M. and Nazim, M. and EL-Shafey, R.}, title = {HOST RANGE OF Pyricularia grisea AND 10-YEAR DEVELOPMENT OF NEW RICE BLAST RACES}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3869-3882}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166787}, abstract = {Rice blast disease is one of the important diseases in Egypt as well as in most of the rice growing countries.  This study was conducted to clarify the host range of this disease in Egypt. Isolation of the causal organism of rice blast disease Pyricularia grisea  was obtained from some rice commercial cultivars i.e. Giza 171, Giza 176, Reiho and the susceptible check variety Giza 159, from both Sakha and Gemmiza experimental farms.  Also, some isolates were obtained from different weeds collected from rice growing governorates during 1999 and 2000 seasons. Eight rice isolates were identified as 6 races on the international differential varieties, while fifteen weed isolates were identified as 4 races.  Some weeds were found to serve as secondary hosts for rice blast fungus, i.e. Cyperus rotundus  L., Cyperus alopecuroides R. Ottb., Echinochloa crus-galli L. Beauv., Echinochloa colona L. Link., Elusine indica L. Gaern., Dinebra retroflexa Panz., Panicum repens L., Leersia hexandra Sw., Digitaria nodosa Parl., Setaria verticillata L. Beauv. and Paspalum distichum  L. The identified isolates of rice race groups were IB (37.5%), IC (25%), IG (25%) and  ID (12.5%), while the identified weed races were IG-1 (6.6%),  IB (26.7%)   and ID (6.7%). All rice physiological races were able to infect the susceptible rice cultivars, as well as some new resistant cultivars as; Sakha 104, Sakha 101, Giza 177, Giza 181 and Giza 182 and some weeds during 1999 and 2000. While some weed races were able to infect their original hosts and some old susceptible rice cultivars.  Also, some weed races were able to infect  other weeds besides their original hosts. Some new virulent and specific blast races to rice cultivars Sakha 104 and Sakha 101 were appeared and caused a breakdown of resistance genes of both cultivars. Some races were virulent to Sakha 104 cultivar only, and the other specific for infecting Sakha 101. While some races able to infect both cultivars and the other were avirulent to the same cultivars during the period from 1999 to 2008.}, keywords = {Blast disease,Pyricularia grisea,host range,Races,weeds,Rice cultivars}, url = {https://jppp.journals.ekb.eg/article_166787.html}, eprint = {https://jppp.journals.ekb.eg/article_166787_f8cc5c115d0b6a63ecbfbcfe47dd4217.pdf} } @article { author = {Nazim, M. and Sehly, M. and EL-Shafey, R.}, title = {LOSSES IN GRAIN YIELD OF SOME RICE CULTIVARS DUE TO BLAST INFECTION AT DIFFERENT GROWTH STAGES}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3883-3896}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166794}, abstract = {Two Experiments were carried out in 1999 season. The first was at the experimental farm of Rice Research and Training Center (RRTC),Sakha, whereas the second was at the experimental farm of Gemmiza Research Station. The study aimed to investigate the effect of rice blast disease on yield losses at different growth stages of cvs. Giza 171, Reiho and Giza 176. The cultivars were evaluated in split- plot design as a main plots, wheras the treatments (protection by Beam at the rate of 100g/ fed) at both tillering and heading stages, artificial inoculation with spore suspension of Pyricularia grisea (5×104 spores/m2( at tillering and  or heading stage (milking, soft dough) and natural infection were allocated as Sub-plots. The highest severity and area under disease progress curve (AUDPC) for leaf blast infection were obtained from artificial inoculation at tillering stage. Also, the highest severity and AUDPC of panicle blast infection were recorded from artificial inoculation at milking stage. Giza 171 was the highest susceptible cultivar during vegetative stage, while Giza 176 was the most susceptible cultivar during heading stage. Maximum actual loss due to blast infection in grain yield and 1000- grain weight was obtained from artificial inoculation at milking stage. Panicle blast infection had stronger influence than leaf blast infection. Whereas yield losses due to panicle infection of Giza 171 were two folds compared to those due to leaf infection. These losses were three and four folds in case of Reiho and Giza 176.  }, keywords = {blast,Pyricularia grisea,Losses,Growth stage,Rice cultivar}, url = {https://jppp.journals.ekb.eg/article_166794.html}, eprint = {https://jppp.journals.ekb.eg/article_166794_ea4527e806329a5698da74271162a199.pdf} } @article { author = {Serag El-Dien, F. and Metwally, M.}, title = {EVALUATION OF SOME CHEMICAL MATERIALS FOR CONTROLLING OF VARROA MITE, Varroa jacobsoni Oud. ON HONEYBEE}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3897-3903}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166801}, abstract = {                The present investigation was achieved at the apiary of Sakha Agricultural Research Station, Kafr El-Sheikh Governorate during 2008 season to evaluate the efficiency of five materials, i.e., formic acid 60%, salcelate methyl 60%, Bayvarol strips, malathion powder 1% and Apitol for controlling varroa mite. All tested materials reduce mite population. Malathion powder 1% and formic acid 60% were the most effective material on varroa mite (93.75 & 89.57% reduction) on each of workers and drones after the fourth week of treatment during the first period from 1/2/2008 to 28/2/2008, respectively. Also, during the second period from 1/9/2008 until 28/9/2008, malathion powder 1% gave the highest reduction (93.15 & 94.00%) of varroa mite on each of workers and drones after the fourth week of treatment, respectively. On the other hand, the remaining materials, i.e., formic acid 60%, Apitol (2 gm), salcelate methyl 60% (2 cm3/colony) and Bayvarol strips gave a high reduction (88.19, 86.67, 84.08 & 82.0%) of varroa mite on workers after the four weeks of application during the first period, respectively. Also, during the second period formic acid 60%, salcelate methyl 60% (2 cm3/colony, Apitol (2 gm) and Bayvarol strips exhibited a high reduction (88.13, 88.11, 84.21 & 82.86%) of varroa mite on workers after the fourth week of application, respectively. At the same trend, formic acid 60%, salcelate methyl 60% (2 cm3/colony), Apitol (2 gm) and Bayvarol strips gave a high reduction (91.67, 91.11, 86.67 & 84.11%) of varroa mite on drones after four weeks of treatment during the second period, respectively. It could be concluded that bee keepers can use formic acid 60%, and salcelate methyl 60% (2 cm3/colony) safety during the above two tested periods for controlling varroa mite.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_166801.html}, eprint = {https://jppp.journals.ekb.eg/article_166801_5cd6c7de391ba3af85735496ec9cb603.pdf} } @article { author = {Metwally, M and Serag El-Dien, F.}, title = {PARASITISM AND BIOLOGY OF THE EGG PARASITOID, Trichogramma evanescens WESTW. IN RELATION TO VARIOUS HOST INSECTS AT KAFR EL-SHEIKH REGION.}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3905-3911}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166806}, abstract = {Percentages of natural parasitism by Trichogramma evanescens Westw. were highest in eggs of Ostrinia nubilalis Hub. followed by those of Chilo agamemnon Bles., Sesamia cretica Led. and Spodoptera littoralis Biosd. However, biological characteristics of produced parasites indicated that S. cretica was the most suitable host for the parasite. Natural parasitism of O. nubilalis eggs was higher in maize fields than that of C. agamemnon in rice fields and S. littoralis in cotton fields. It was found that S. littoralis eggs was covered with fur which acted as a mechanical barrier for parasitism. Parasites reared on S. cretica have longer durations of longevity and longer life-cycle besides a higher sex ratio in adult emerging and oviposition and post-oviposition period. Sitotroga cerallella Oliv. was found to be a moderately suitable host for the parasite. The laboratory strain of the parasite came inferior to the field strain.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_166806.html}, eprint = {https://jppp.journals.ekb.eg/article_166806_9597678f42b29bf6103b7cb291ed2dd6.pdf} } @article { author = {El-Awady, S. and Ali, F. and Abdel-Sattar, M. and Hafez, S.}, title = {COMPARATIVE STUDY FOR SOME BIOLOGICAL ASPECTS OF THE EGYPTIAN COTTON LEAFWORM Spodoptera littoralis(BOISD) REARED ON CASTOR BEAN LEAVES AND ARTIFICIAL DIETS.}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3913-3917}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166810}, abstract = {Laboratory mass rearing of Spodoptera littoralis (Boisd) on two artificial diets (Kidney beans diet and broad beans diet) was carried out for five successive generations in order to compare some of their biological aspects with those reared on fresh castor bean leaves. Results indicated that, The mean weight of the last larval instars, the percentages of larvae pupation, the mean weight of pupae, the percentages of adult emergence and the number of eggs laid by a female moth were higher for the insects reared on artificial diets than those  reared on fresh castor leaves. These difference in the biological aspects were more pronounced at the 5thgeneration. for the two artificial diets examined, broad bean diet proved to be the preferable diet for rearing S. littoralis.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_166810.html}, eprint = {https://jppp.journals.ekb.eg/article_166810_fb5e5fda1ab4a1c4b9d9b2b790eaf923.pdf} } @article { author = {Mansour, H. and Serag El-Dien, F. and El-Dahan, A.}, title = {EFFECT OF THYROXINE AND MELATONIN AND INSECT GROWTH REGULATOR, IKI ON HONEYBEE ACTIVITIES}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3919-3928}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166814}, abstract = {            The present investigation was conducted at the apiary of Beekeeping Research Section at Sakha Agricultural Research Station, Kafr El-Sheikh Governorate from September, 2007 until April, 2008. The objective was to find out the effect of mixing some supplements to the sugar syrup, offered to feeding the colonies, on honeybee activities and honey yield. The results indicated that the total number of workers foraging in treatments of thyroxine 1.6x10-7M + melatonin 1.2%, thyroxine 1.6 x 10-7 M, melatonin 1.2% and melatonin 1.2% + IKI 10 ppm were 128.00, 116.28, 104.79 and 98.85 workers/colony/minute, respectively. IKI 10 ppm and control treatments induced the lowest total number of workers foraging (76.10 and 78.85 worker/colony/minute, respectively). Increase percentages of brood rearing areas over the control were in treatment of thyroxine + melatonin (44.02%), thyroxine (36.79), melatonin (30.11) and melatonin + IKI (27.28 inch2/colony). The lowest one was that of IKI treatment (-1.96 inch2/colony). The lowest monthly average of stored pollen was recorded during November, 2007 in colonies fed on thyroxine + melatonin, thyroxine, melatonin, melatonin + IKI, IKI and control, with values of 37.40, 35.20, 33.20 30.10, 25.20 and 26.40 inch2/colony, respectively. The highest monthly averages of stored pollen area were recorded during March, 2008 for the same previous treatments recording 220.23, 210.80, 195.50, 190.50, 166.56 and 170.85 inch2/colony, respectively. Data proved that thyroxine + melatonin treatment gave the highest average of workers incoming with pollen followed by thyroxine, melatonin, then control, while IKI treatment recorded the lowest average. No significant differences in honey yield were found among colonies fed on thyroxine, melatonin and melatonin + IKI treatments.Only the treatment of thyroxine + melatonin overpassed the other treatments, which could be recommended to enhance the honeybee activities and honey yield.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_166814.html}, eprint = {https://jppp.journals.ekb.eg/article_166814_9efc381f0504be17aafc706778bd9b91.pdf} } @article { author = {Nassef, A. and Khattab, M. and Abou Mostafa, R.}, title = {FIELD EVALUATION OF PROMISING FABA BEAN, Vicia faba L. GENOTYPES TO COWPEA APHID, Aphis craccivora KOCH. INFESTATION AND YIELD PERFORMANCE AT KAFR EL-SHEIKH REGION}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3929-3942}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166829}, abstract = {Two field experiments were conducted at Sakha Agricultural Research Station to evaluate eleven faba bean genotypes compared with the commercial recommended cultivar Sakha 3 for resistance to cowpea aphid, Aphis craccivora Koch. and high yielding ability under two sowing dates during two seasons; 2005/06 and 2006/07. Results revealed that the lines 1561/492/2002 and 96/67/02 are considered promising genotypes in early plantation because they exhibit relative resistance to aphid, but with a high yielding potential. On the other hand, the lines 1561/492/2002 and 81/35/02 were suitable to optimum plantation date and/or early sowing date if there was an urgent need. Also, results of genotypes reactions to aphid infestation and yield performance proved that the genotypes: 1561/492; 1571/638, 81/35 and 1618/846 were promising for aphid resistance and yielded 2.72% more than the recommended cultivar Sakha 3. Thus, these promising genotypes could be involved in breeding programs as a source of resistance to cowpea aphid, A. craccivora}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_166829.html}, eprint = {https://jppp.journals.ekb.eg/article_166829_1dc751785fc12b321eb81dfbb064e31b.pdf} } @article { author = {Mesbah, A. and El-Husseini, M. and El-Zoghbey, Amal}, title = {THE EFFECT OF COTTON PLANT SPACING ON IMPORTANT INSECT PESTS AND THEIR RELATED PREDATORS AND YIELD}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3943-3948}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166833}, abstract = {Field study was carried out at Desuq district, Kafr El-Sheikh Governorate during two successive seasons, 2007 and 2008 to determine the effect of cotton plant spacing on the important insect pets and their associated predators as well as the cotton yield.                 The results showed that the important insect pests were the percing and sucking insect pests (Bemisia tabaci (Genn.), Aphis gossypii (Glov.), Empoasca lybica deBarg, and Thrips tabaci), Spodoptera littoralis (Boisd.), Pectinophora gossypiella (Sound.) and Earias insulana Lind. . The cotton plant spacing had significant effect on piercing sucking insect pests, where the population of these pests increased in the narrow bed with rate 25 cm inter and 59.16 cm intra, followed by narrow row with the same rates of plant spacing. While, in the wider rates (50 cm inter and 118.32 cm intra) were lowest. As for other insect pests, there were no significant differences between these pests in the four spacing rates.                 The important predators were the coccinelids, (Coccinella undecimpunctata, and Scymnus interruptus Mals.), Paederus alfierii, Syrphus spp., Orius spp. and Chrysoperla canrea Steph. The predators correlated only with their prey but had no correlation with plant spacing. On the other hand, there was significant relationship between coccinellid predators and aphid and between Chrysoperla carnea Steph. and both aphid and whitefly as well as between Paederus alfierii, Kokh and Spodoptera littoralis Boisd.                 The results also indicated that the significant increasing of cotton yield in narrow row spacing inter-25 cm and intra-59.16 cm (11.2 and 9.1 quintals/fed. in the two seasons, respectively followed by the same spacing rate on bed (9.8 and 8.7 quintal/fed., respectively), while in wide spacing (50 cm. inter-row) 9.5 and 7.9 quintal/fed., respectively and in wide bed spacing 8.5 and 7.2 quintal/fed. in the two seasons, respectively.}, keywords = {Cotton,insect pests,Predators,cotton yield}, url = {https://jppp.journals.ekb.eg/article_166833.html}, eprint = {https://jppp.journals.ekb.eg/article_166833_6880d8b7693e59ba3114faf0a9cf3df5.pdf} } @article { author = {Eid,, M. and Mahmoud, Souad and El-Maasarawy, S. and Hamada, Hanan and Hammad, Ghada}, title = {C/N RATIO OF MULBERRY LEAVES FED TO SILKWORM, Bombyx mori L. LARVAE AS AN INDEX FOR ITS PRODUCTIVITY.}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3949-3964}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166838}, abstract = {The present study was conducted to evaluate the performance of five mulberry varieties used for rearing the bivoltine race (EJ) of mulberry silkworm. Nutritional composition of the leaves was determined. Carbohydrate/protein (C/N) ratios were focused. Also, leaf/cocoon ratios and its suitability for judging the mulberry leaves efficiency were determined. The results show significant differences between varieties. Kokuso-27 and Kearyang-Seoban-3 show higher nutritional components followed by Josaengrok-2. While the lowest value were recorded in Morittiana and Kokuso-20 varieties. Kokuso-27 and Kearyang-Seoban-3 recorded lowest values in C/N ratio and in leaf/cocoon ratio, and therefore, Kokuso-27 and Kearyang-Seoban-3 give more superiority over other varieties, they can be used as criteria for comparing the different mulberry varieties. The biological and economic characters of silkworm were reflection of higher values of leaf nutritional contents, lower values of carbohydrate/ protein ratio and leaf /cocoon ratio.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_166838.html}, eprint = {https://jppp.journals.ekb.eg/article_166838_5f24351e7ee9d29aa734b81b3abd665e.pdf} } @article { author = {El-Shazly, . E and F., Sohair and El-Sebay, Y. and Abd El-Azim, M. and El- Rehewy, Eman}, title = {SOME INTERNAL CHANGES IN DATE PALM TREES AS A RESULT OF INFESTATION WITH RED PALM WEEVIL, Rhynchophorus ferrugineus OLIVE. (CURCULIONDAE: COLEOPTERA)}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {9365-9373}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166844}, abstract = {Internal changes of temperature, moisture content and PH values of infested date palm trees with red palm weevil, Rhynchophorus ferrugineus were studied. The results indicated that internal Palm tree temperature at 6 am, Palm tree temperature at 12 pm and mean temperatures  were increased in infested areas  in infested trees during the different months. . Palm tree temperature at 6 am inside infested trees ranged between 12.8º C ( in January) and 34.8º C ( in August). The differences of Palm tree temperature at 6 am. between infested and healthy trees  ranged between 0.1º C  in January  and 6.1º C in April. Palm tree temperature at 12pm in infested trees ranged from 11.9 ºC in January to 30 ºC in December and 7.8 ºC in October.  Mean temp. in infested trees ranged between 12.4ºC in January and 32.4º C in August, while, the differences ranged between 2.2º C in January  and 6.9 ºC in October. The moisture contents decreased in infested trees (ranged between 59.5 % in March and 78.3 % in November, while the differences ranged between 0.2 % in May and 9.6 % in March. PH values were lower inside infested areas than in healthy trees, where the range in infested trees fluctuated between 4.23 in May and 5.28 in March. The differences in PH ranged between 0.45 in March  and 1.60 in June.}, keywords = {Rhynchophorus ferrugineus,Red palm weevil,Date palm tree,Ecology,Temperature,moisture content,relative humidity,pH}, url = {https://jppp.journals.ekb.eg/article_166844.html}, eprint = {https://jppp.journals.ekb.eg/article_166844_350711a17851fcb0268aa73e1d198aee.pdf} } @article { author = {Mokbel, Asmaa and Obad, Intisar and El-Saedy, M.}, title = {CONTROL OF THE ROOT KNOT NEMATODE, Meloidogyne javanica INFECTED TOMATO PLANTS}, journal = {Journal of Plant Protection and Pathology}, volume = {34}, number = {4}, pages = {3975-3983}, year = {2009}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2009.166849}, abstract = {The effects of one isolate of Bacillus subtilis and two isolates of B. thuringiensis subsp. aegypti (Bt), the bioproducts Agarin® and Vertemic® and the chemical nematicide Vydate L 24% on Meloidogyne javanica infection on tomato plants were tested in the greenhouse. Treatment with Vydate L 24% caused the great reduction (90-93.7%) in nematode infection and reproduction (numbers of nematode root galls, egg-masses/plant and number of 2nd stage juveniles (J2) /250 cc soil). Treatments with sporulated bacterial cells suspension of the tested Bacillus isolates resulted in 59.1-80.1% reduction in nematode infection whereas treatment with the cell free-filtrates gave low reduction (16-57.7%) in nematode infection and reproduction. In another test, treatments with Vydate L 24%, Agarin® and Vertemic® induced great reduction (66.3-91.8%) in nematode infection and reproduction on infected tomato plants. Also, treatments with Vydate L 24% and the tested bioproducts showed significant increase in the dry weight of the shoot and root systems in comparison with control treatment. }, keywords = {biological control,Root-knot nematode - Meloidogyne javanica - Bacillus spp,Agarin® Vertemic® - Vydate L 24%-Tomato}, url = {https://jppp.journals.ekb.eg/article_166849.html}, eprint = {https://jppp.journals.ekb.eg/article_166849_75645fbc0d649e80b618f78305172045.pdf} }