@article { author = {El-Samahy, M. and Taman, A. and Salem, Fathia}, title = {INFLUENCE OF PLANTING DATE, PLANT AGE, DISTRIBUTION PATTERN AND CONTROL OF MAIZE LEAFMINER, Pseudonapomyza spicata MALL. (DIPTERA: AGROMYZIDAE) ON MAIZE PLANTS AT KAFR EL-SHEIKH REGION}, journal = {Journal of Plant Protection and Pathology}, volume = {2}, number = {12}, pages = {1049-1056}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2011.86635}, abstract = {The study was conducted at Sakha Agriculture Research Station Farm and the laboratory of field crop pests research department, Plant Protection Research Institute (PPRI) at Sakha to evaluate the influence of planting date and age of maize plants on the degree of infestation by Pseudonapomyza spicata Mall. and study also distribution pattern of this insect mines on maize (Zea mays  L.) leaves. Data showed that this leaf miner infested maize plants of July plantation as highest, followed by maize plants of June and September plantations. However, maize sown during April or May was insect-free. The leaves of 30-days old were the most infested with the leafminer, P. spicata followed by those of 20- and 10-day old. Older than one month, maize plants were not preferred by P. spicata. The infestations with P. spicata were concentrated in the lower leaves, and then the damage became slighter toward to the top of the plant. The insecticide, Gaucho 7% WP used at rate of 7 or 14 g/kg maize seed as seed-coating effectively reduced the infestation with P. spicata. This treatment is less harmful to natural enemies, because the insecticide is used with seeds not as a spray onto maize plants.}, keywords = {Maize leafminer,planting date,distribution pattern,control}, url = {https://jppp.journals.ekb.eg/article_86635.html}, eprint = {https://jppp.journals.ekb.eg/article_86635_88cf4f871b8c436e0fa6980e652afaa7.pdf} } @article { author = {Mahmoud, M. and Ibrahim, I. and Hafez, S. and El-Anani, S.}, title = {MONITORING OF THE MEDFLY Ceratitis capitata(WIEDEMAN) (DIPTERA: TEPHIRTIDAE) ACTIVITY BY CERALURE TRAPS IN NAVEL ORANGE ORCHARDS.}, journal = {Journal of Plant Protection and Pathology}, volume = {2}, number = {12}, pages = {1057-1062}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2011.86636}, abstract = {The experiment was conducted throughout two successive and seasons (2007. 2008) from early September to late December. The aimwas to study the population fluctuation of medfly Ceratitis capitata wied.insect adults, and the relationship between two weather factors  (namely mean temperature and relative humidity) and the population density of this insect. The mean number of caught insects by ceralure during 2007 reached its peak in 4th of November averaged 11.8 insects/trap, while, the mean number peak of the insects was 12.0 adults/trap in 2008 season. No significant difference between the mean number of insects/trap in 2007 and 2008 seasons (P= 0.058). The mean number of male and female insects/trap (P=0.0001) was significantly different in the two successive seasons. The relationship between the daily mean temperature and insects was positive significant in 2007 and 2008 seasons, Mean whiles, the relationship was positive insignificant between the insect pest and the relative humidity in both seasons. The explained variance was 37.06% in 2007 and 62.99% in 2008 season, respectively.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_86636.html}, eprint = {https://jppp.journals.ekb.eg/article_86636_d2a72d8e49cb46378812887dde0c0aa2.pdf} } @article { author = {Ibrahim, H. and Salam, A. and Abdel-Mogib, M. and El-nagar, M. and Salem, Hoda and Nada, Maha}, title = {SURVEY of ENTOMOPATHOGENIC FUNGI NATURALLY INFECTING COWPEA APHID, Aphis craccivora. KOCH.}, journal = {Journal of Plant Protection and Pathology}, volume = {2}, number = {12}, pages = {1063-1070}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2011.86637}, abstract = {          Entomopathogenic funginaturally associated with cowpea aphid,Aphis. craccivora were surveyed and identified. There were 18 fungal species infected cowpea aphid,  on broad bean in winter and on cowpea in late spring and summer from December (2008) to December (2009). Five genera of entomopathogenic fungi were recorded for the first time associated with A. craccivora  in Egypt. These genera were:  Trichoderma longibrachiatum, Panadora neoaphidis, Batkoa major, Entomophthora planchoniana, and Coidiobolus obscurus.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_86637.html}, eprint = {https://jppp.journals.ekb.eg/article_86637_2a8db3129092cb2f2c9dd9bd32242d0f.pdf} } @article { author = {El-Habashy, M.}, title = {EFFECT OF RICE LEAFMINER INFESTATION ON RICE YIELD, AND CORRELATION BETWEEN LEAF PLANT CHEMICAL COMPONENTS AND INSECT SEVERITY}, journal = {Journal of Plant Protection and Pathology}, volume = {2}, number = {12}, pages = {1071-1079}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2011.86638}, abstract = {Rice leafminer, Hydrellia prosternalis Deem. is one of important rice insects, as it causes economic yield losses, particularly in late-sown rice plantations. The current study was undertaken in 2010 rice season to monitor the population fluctuations of this insect pest. The losses resulting from the pest, in different rice plantations, were evaluated. Also, the correlations among some chemical components of rice plants and severity of the insect infestation were computed. The insect adult activity, monitored by water aluminum pan traps, exhibited five peaks from May up to September. The highest two peaks were detected during the second half of July. Yield losses due to this insect pest were negligible in rice plantations sown during the recommended duration; the first half of May. High yield losses were evaluated in rice plantations sown by late May or early June; with values of losses ranging between 21.99 and 25.24 %. Chemical analysis of rice leaves revealed a negative correlation between rice infestation by H. prosternalis and each of silica (r = - 0.605**), nitrogen (r = - 0.340) and potassium (- 0.198). However, the correlation between insect infestation and phosphorus content in rice leaves was insignificantly positive. This study show the importance of avoidance of sowing rice late in the season, otherwise chemical insecticides may be required to control the insect. The collaboration between rice breeders and entomologists is required to develop rice varieties with high silica content to reduce the infestation by H. prosternalis in rice plants. }, keywords = {}, url = {https://jppp.journals.ekb.eg/article_86638.html}, eprint = {https://jppp.journals.ekb.eg/article_86638_5906b56fed78c418eff46d4a20cfe7cd.pdf} } @article { author = {El-Naggar, A. and Sabry, A.}, title = {ASYMPTOMATIC INFECTION OF MAIZE LATE WILT CAUSED BY Cephalosporium maydis}, journal = {Journal of Plant Protection and Pathology}, volume = {2}, number = {12}, pages = {1081-1087}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2011.86639}, abstract = {Greenhouse experiments were conducted in 2008, 2009 and 2010 growing seasons to determine the incidence of symptomatic and asymptomatic infection by Cephalosporium maydis the causal agent of late wilt disease of maize. The percentage of healthy appearing plants that incubating the fungus (asymptomatic) ranged from 5 to 68% whereas visually infected plants (symptomatic) was in between 0 to 100%. There was no positive correlation between the degree of resistance and asymptomatic infection. Based on the occurrence of asymptomatic infection by C. maydis, under inoculum of single isolate, mixture isolates and different levels of its density, on resistant or susceptible genotypes it is concluded that asymptomatic of late wilt disease is evident and maize plants used tolerance as a defense against the causal agent of late wilt disease.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_86639.html}, eprint = {https://jppp.journals.ekb.eg/article_86639_d8f76bcd48308bd2e40379954e50f3b4.pdf} } @article { author = {Abied, M.}, title = {TAXONOMICAL STUDIES ON GENUS Ptinus(COLEOPTERA, PTINIDAE ) IN EGYPT.}, journal = {Journal of Plant Protection and Pathology}, volume = {2}, number = {12}, pages = {1089-1102}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2011.86640}, abstract = {This is the first paper of a designed series dealing with the taxonomy of Egyptian ptinidae. The present work treated seven species of genus Ptinus  known to occur in Egypt. Diagnosis for family ptinidae and genus Ptinus . Keys were provide to separate the treated species.All species are diagnosed and provided with detailed drawings. Synonyms in addition to the geographical and local distribution of each species were provided.}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_86640.html}, eprint = {https://jppp.journals.ekb.eg/article_86640_5d1ffe5381090044dbc6465bfa733e24.pdf} } @article { author = {Ismail, Sh. and Shetaia, S. and Arafa, A. and Abd-El-Atty, S.}, title = {INCIDENCE AND SEASONAL FLUCTUATION OF CERTAIN LAND GASTROPOD SPECIES ASSOCIATED WITH SOME CROPS AND WEEDS AT SHARKIA GOVERNORATE.}, journal = {Journal of Plant Protection and Pathology}, volume = {2}, number = {12}, pages = {1103-1110}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2011.86641}, abstract = {Occurrence and seasonal fluctuation of certain land gastropod species associated with some crops and weeds at Sharkia Governorate were conducted at two district belonging to Sharkia Governorate. Results revealed that Monacha cartusiana (Muller)   and Succinea  putris (Linnaeus) snails were found at Hehia and Meniet EL-Kamh while  M cartusianawas found with higher densitythan S putris on agricultural crops and weeds .The majority of the examined crops were found with heavy infestation with M cartusiana while infestation with S putris was found light or moderate. Regarding weeds, it was noticed that chicory has heavy infestation with  M cartusiana while scarlet pimpernel was found with no infestation in despite of the highly density of  M cartusiana snails. It was necessary to mention that the field slug , Deroceras reticulatum was recorded for the first time at Meniet EL-Kamh associated with agricultural crops and chicory with high infestation .Regarding population dynamics, results revealed that M cartusiana snail was recorded with high density during spring months (March, April and May )as compared with winter or fall months .Data showed  that cabbage harbored the highest population of M cartusiana while broad bean show the lowest numbers.             }, keywords = {}, url = {https://jppp.journals.ekb.eg/article_86641.html}, eprint = {https://jppp.journals.ekb.eg/article_86641_de91027cbc436181c280e1b69b0f106b.pdf} } @article { author = {Aref, S.}, title = {EFFICENCY OF SOME ACARICIDES ON PREDATION POTENTIAL OF Amblyseius gossypi AND Coccinella undesimpunctata ASSOCIATED WITH SPIDER MITE ON COTTON PLANTS .}, journal = {Journal of Plant Protection and Pathology}, volume = {2}, number = {12}, pages = {1111-1121}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2011.86642}, abstract = {Abamectin caused the highest decrease in prey eggs consumption (56.25 eggs) comparable to the control through the egg meal of the all days (178.80 eggs during four days). Also, Abamectin was the most effective chemical that caused decrease in adult consumption (consumption (32.55 adult during  four days) comparable to the control (73.74 adult) Therefore, Abamectin reduced the adult consumption (5.75, 7.25, 9.25 and 10.50, individ. during the first, second, third and fourth days, respectively) with the percentages of  22.63, 23.35, 28.87 and 31.37 %, respectively. Etoxazole was the least effective compound in this respect, when A. gossypi fed on eggs treatment the average of total consumed eggs were 46.03 during the fourth days successively with the percentages of feeding capacity for each of the fourth days of this predator were 17.48, 28.78, 23.25 and 30.97 %, respectively. While ,when it fed on adult of T. urticae, the average consumption of A. gossypi was 42.05 individ. through fourth days successively (73.74 individ . for control ) with the percentages of 23.18, 19.61, 28.35 and 28.65 %, respectively. Laboratory studies carried out on the ladybird beetle predator showed that, it devoured 189.85 of the two spotted spider mite eggs during the shortest duration of larval stage (11.30 days ) compared with control (376.12 eggs) that was consumed in 10 days all larval instars. The fourth larval instar consumed the highest percentages of T. urticae eggs (37.42%) (treatment). On the other hand, the larvae of C. undicempunctata was fed on T. urticae adult, the duration of larval instars lasted 9.45 days, consumed during 176.75 adults in untreatment. While the treatment by Abamectin, the consumption was 104.05 adults for the four instars during 12.50 days. The 4th instar consumed relatively the highest percentages of individual offered four the fore mentioned mite, as it consumed were 13.21, 18.02, 27.63 and 41.56%, respectively.     The coccinellid larval stage was completed in four instars, with a total larval duration of 10.50 days, consumed during these days 148.05 eggs. Also, the percentage of feeding capacity for each of the four larval instars of this predator were 17.73, 23.44, 28.19 and 30.90 %, respectively. Concerning the two spotted spider mite adult, the ladybird consumed 100.10 individ. during 12.24 days for the four larval instars. Thus, the most voracious instar was the fourth instar, that consumed 40.04 % out of total consumed. While the first instar was the least voracious (12.24 % out of total consumed).}, keywords = {}, url = {https://jppp.journals.ekb.eg/article_86642.html}, eprint = {https://jppp.journals.ekb.eg/article_86642_35d2cad4f8c11a442135a4ab32fd4fb7.pdf} } @article { author = {Abou Hatab, Eftkhar and Arafat, Neveen and Riad, Naglaa}, title = {EFFICACY OF SOME PLANT EXTRACTS AND THE COMMERCIAL BIOCIDE, DOLPHIN ON POTATO TUBER WORM, Phthorimaea operculella (ZELLER.) (LEPIDOPTERA: GELECHIIDAE) UNDER FIELD AND STORAGE CONDITIONS}, journal = {Journal of Plant Protection and Pathology}, volume = {2}, number = {12}, pages = {1123-1131}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2011.86643}, abstract = {Field and laboratory experiments were conducted at Aga district ,Dakahlia Governorate during two successive seasons 2009 and 2010 to evaluate the efficiency of some plant extracts (demises ) and plant oils(mint oil- fennel oil -cumin oil)  in comparison with the biocide (dolphin )against Phthorimaea operculella(Zeller.)  . The obtained results showed that the mint oil was the most effective against P. operculella larvae (74.2, 75.9%), followed by fennel oil (62.7, 74.2%) ; cumin oil (62.6, 69.1%) and demises plant extracts (61.5, 60.5%).  While, dolphin caused a relatively high mortality rate of PTM larvae( 82.6 &81.4 %) during2009 &2010 seasons.  The results indicated that the bioactivity of the tested materials were concentration-dependent, whereas, the inhibition rates of moths resulted from eggs or pupae or moths infestation increased obviously with the rise of concentration. Meanwhile, the bioactivity of all were relatively the most to moths infestation all tested materials than eggs and pupae.   }, keywords = {}, url = {https://jppp.journals.ekb.eg/article_86643.html}, eprint = {https://jppp.journals.ekb.eg/article_86643_0008c5874b75da4eac42e279d346659b.pdf} } @article { author = {Khorshed, Mona and El- Sawi, Sanaa and Nabil, Y. and Mahmoud, A.}, title = {RESIDUES OF ORGANOCHLORINES AND TRACE HEAVY MEATLS IN FISH}, journal = {Journal of Plant Protection and Pathology}, volume = {2}, number = {12}, pages = {1133-1147}, year = {2011}, publisher = {Mansoura University, Faculty of Agriculture}, issn = {2090-3677}, eissn = {2090-3758}, doi = {10.21608/jppp.2011.86644}, abstract = {The contamination of the aquatic environment and the marine organisms with trace elements and the other contaminants have been of considerable interest. The present study is related to monitoring of trace elements (cadmium (Cd), lead (Pb) and mercury (Hg) and organochlorine pesticides as well as polychlorinated biphenyls (PCB) concentrations in fish tissues of different species collected from different Egyptian governorates. A total of seventy one samples of different fish species were subjected to heavy metals analysis for mercury, cadmium, and lead investigation. However, only thirty five samples were analyzed for eighteen chlorinated pesticides and seven polychlorinated biphenyl (PCB) congeners. In heavy metals analysis, the results showed that only 12.7% of the samples were free from any detectable amount of Cd. However, 87.3% of the total number of fish samples analyzed was contaminated with Cd element, of which 7 % exceeded the maximum limits established for Cd by EU (2007) and EOS (2009). The concentration levels ranged from 0.005 to 0.091    mg/kg and the violated samples were Barbony, Denise, saraghieus, Morgan and Sopeet. Data showed that 91.3% of all tested samples were contaminated with mercury. The concentration levels varied from 0.03 to 1.4   mg/kg. Also, data demonstrated that 8.7% of all tested samples had levels of mercury exceeded the established ML's for Hg. Morgan fish recorded the most violated samples (3 samples exceeded ML of Hg), while the lowest were Mousa and Wakar samples. Data showed that lead recorded the lowest contamination percentage (i.e. 77.1%). The concentration range varied from 0.03 to 1.8 mg/kg. Also, results showed that 4.2% of all tested samples containing lead levels exceeded the ML of Pb. The violated samples were Denis, Loot and Wakar. In the residues analysis of pesticide and PCB’s, results showed that total contamination of fish by organochlorine pesticides (DDE p,p and DDD p,p) and PCBs were 57% and 37%, respectively. It was noticed that 14.3% from the total of samples analyzed were contaminated with detectable levels (i.e. more than LOQ) of organochlorine pesticide residues, in concentration levels ranged from 0.005 to 0.04 (mg/kg), Results showed that the percentage of   the  violation was 54.3%.  The violated samples were Bory, Bolty, and Karameet. Data showed that the highest contamination percentage with DDEp,p recorded in Bory samples (i.e. 26%), followed by Bolty (i.e. 11.4%) and the lowest in Karameet fish samples (i.e. 8.6%).However,   8.5% from total number of  samples were contaminated with  DDD p,p  less than LOQ (0.05 mg/kg)  Also, results showed that all Karameet samples were contaminated with PCBs (28, 52, 101, 118, and 180), in concentration levels less than LOQ. On the other hand 14% of all analyzed Bolty samples were contaminated traces of PCBs (101,118,138,153 and 180). However, 71% of all analyzed Bory fish samples contaminated with detectable levels of PCBs (101,118,138,153 and 180), no exceeding of the levels of detected PCBs above the established MRL’s. }, keywords = {Heavy metals,atomic absorption,fish,freshwater,marine}, url = {https://jppp.journals.ekb.eg/article_86644.html}, eprint = {https://jppp.journals.ekb.eg/article_86644_a35822c280205a201e857d44b0533037.pdf} }