eng
Mansoura University, Faculty of Agriculture
Journal of Plant Protection and Pathology
2090-3677
2090-3758
2010-01-01
1
1
1
8
10.21608/jppp.2010.86645
86645
Original Article
SURVEY OF PLANT PARASITIC NEMATODES GENERA ASSOCIATED WITH SUGAR BEET PLANTATIONS IN DAKAHLIA GOVERNORATE.
A. EL-Sherif
1
Dina Serag El-Deen
2
Nematology Res. Unit, Agric. Zoology Dept., Fac. Agric., Mansoura Univ., Egypt
Nematology Res. Unit, Agric. Zoology Dept., Fac. Agric., Mansoura Univ., Egypt
A survey of plant parasitic nematodes genera associated with the rhizosphere of seven sugarbeet cvs. Kawemira, Monte-bionco, Deprez-poly N, Sultan, Nejama, Athos-poly and Farida grown at five counties of Dakhlia governorate (Egypt) was carried out during the sugar beet growing season 2007/2008/2009. Nine nematode genera were recorded in the surveyed sugar beet fields. Based on their frequency of occurrence , these genera can be arranged in ascending order as follows : Meloidogyne (J2) (22.6%) , Trichodorus (19.8%), Hirschmanniella (13.4%), Helicotylenchus (10.4%), Tylenchus (6.5%), Pratylenchus (4.7%), Dorylaimus (3.4%), Rotylenchulus (1.7%), and Tylenchorhynchus (1.3%). Among the seven true nematode genera recorded, Meloidogyne and Trichodorus seemed to be the major pest of sugar beet plantations in this work. Meanwhile , clay soil with 413 out of 700 soil samples examined encountered the highest number of nematode genera (7) followed by loamy (5) and clay loam (4) .
https://jppp.journals.ekb.eg/article_86645_5e306f9dda9232c5855c2d3795161278.pdf
Survey nematodes genera
Sugar beet cultivars
Meloidogyne spp.Loamy
eng
Mansoura University, Faculty of Agriculture
Journal of Plant Protection and Pathology
2090-3677
2090-3758
2010-01-01
1
1
9
19
10.21608/jppp.2010.86652
86652
Original Article
REPELLENCY AND TOXICITY EFFECT OF PLANT EXTRACT FROM Francoeria crispa (Forssk) AGAINST Eutetranychus orientalis (Klein) (Acari: Tetranychidae)
Amira Abdel-Khalek
1
Sanaa Amer
2
Faten Momen
fatmomen@yahoo.com
3
Pests and Plant Protection Department, National Research Centre, 31 El- Tahrir Street, 12622 Dokki, Cairo, Egypt. Tel: +202-734-0110,. Fax: + 202- 337-0931
Pests and Plant Protection Department, National Research Centre, 31 El- Tahrir Street, 12622 Dokki, Cairo, Egypt. Tel: +202-734-0110,. Fax: + 202- 337-0931
Pests and Plant Protection Department, National Research Centre, 31 El- Tahrir Street, 12622 Dokki, Cairo, Egypt. Tel: +202-734-0110,. Fax: + 202- 337-0931
Laboratory bioassays were conducted to evaluate the activity of plant extract Francoeria crispa (Forssk) (Family Compositae) against the citrus brown mite, Eutetranychus orientalis (Klein). Ethyl acetate was tested for preparing the crude extract of F. crispa. The extract was tested for its toxicity against eggs and adult females of the mite pest E. orientalis. Ethyl acetate extract of F. crispa was affected the behavior, toxicity and fecundity of females under laboratory conditions. The extract had similar toxic effects on egg stage and adult females of E. orientalis (LC 50 = 0.00050 g / ml), respectively. Leaf discs treated with increasing concentrations of ethyl acetate extract of F. crispa showed a high percentage of repellency (97.45%), respectively. Treated females with LC 50 concentration of ethyl acetate extract showed a higher remarkable percentage of mortality as well as a reduction in the total number of eggs laid during 7 days. Ten isolated fractions of ethyl acetate crude extract from F. crispa were detected. Results clearly indicate that the isolate number (10) was the most toxic isolate on eggs and females of E. orientalis (LC 50 =0.00014 and 0.000125 g / ml), respectively.
https://jppp.journals.ekb.eg/article_86652_c8e7caa4ee14c16cc3b9648e42906fe3.pdf
Acari
Eutetranychus orientalis
Francoeria crispa
plant extract
Tetranychidae
eng
Mansoura University, Faculty of Agriculture
Journal of Plant Protection and Pathology
2090-3677
2090-3758
2010-01-01
1
1
21
33
10.21608/jppp.2010.86653
86653
Original Article
EFFECTIVENESS OF BIO-GEL BASED POWDER FORMULATIONS OF BACTERIAL BIOCONTROL AGENTS IN CONTROLING ROOT ROT DISEASE OF BEAN CAUSED BY Sclerotium rolfsii
G. Amer
1
Agric. Bot. Dept., Fac. of Agric., Minufiya Univ. , Shibin El-Kom , Egypt
Natural polymers(biogel) along with inert carriers were used to formulate two antagonistic bacterial isolates of Pseudomonas fluorescens and Bacillus subtilis. Four different formulations i.e. biogel- vermiculite based powder (F1), biogel-talc based powder (F2), biogel- charcoal based powder (F3) and biogel wettable powder (F4) were developed. These formulations were tested for their shelf life efficiency as storage substrates of the two bioagents for 24 month and their ability to control root-rot disease of bean caused by Sclerotium rolfsii. Viability of P. fluorescens propagules in biogel- vermiculite based powder and biogel wettable powder was stable for up to 16 months and decreased sharply after 20 months .The populations in biogel-talc based powder and biogel- charcoal based powder were decreased beyond 1 year of storage. B.subtilis populations of viable propagules were stable for up to 2 years with minor differences in populations either in formulation types or the storage periods tested. Active colonization of bean rhizosphere was occurred by P. fluorescens and B. subtilis following seed coating or soil amendment with different formulations. The highest populationof Ps. fluorescens and B. subtilis, was found in seed coating treatment than soil amendment. Biogel- vermiculite based powder gave the highest rhizosphere population followed by biogel wettable powder for both bacteria. In general, seed coating treatment gave an obvious results than soil amendment in reducing root rot disease incidence. Seed coating with B. subtilis applied in biogel- vermiculite based powder was the most effective one in reducing the disease incidence . Soil treatment was more effective than seed coating in reducing the sclerotia formed by Sclerotium rolfsii. Soil treatment with B. subtilis applied in biogel- vermiculite based powder was the most one in reducing the number of sclerotia formed. However, Soil amendment with B, subtilis in biogel- vermiculite based powder was the most effective treatment than other formula.
https://jppp.journals.ekb.eg/article_86653_74a8d55c752667197c7a968a1170552f.pdf
Bean
Root rot
P. fluorescens
B. subtilis
formulation
eng
Mansoura University, Faculty of Agriculture
Journal of Plant Protection and Pathology
2090-3677
2090-3758
2010-01-01
1
1
35
42
10.21608/jppp.2010.86654
86654
Original Article
INSECT SPECIES ASSOCIATED WITH THE THISTLE PLANT, Cynara SP. IN EL-GABAL EL-AKHDAR, LIBYA
A. Amin
ahkorachi@yahoo.com
1
Dept. of Plant Protection, College of Agriculture, University of Salahaddin, Erbil, Iraq.
The present study was conducted to survey the insect species associated with the thistle plant, Cynara sp. at El-Baida area, El-Gabal El-Akhdar, Libya during the period from September 2001 through August 2003. Obtained results revealed the presence of 27 insect species belong to 19 families and seven orders associated with Cynara sp. Order Coleoptera was represented by nine species; Agapanthia anularis L. and A. cardui L. (Family Cerambycidae), Cassida sp. and Phyllotreta sp. (Family Chrysomelidae), Coccinella septempunctata L. and C. novemnotata L. (Family Coccinellidae), Larinus sp. and Lixus sp. (Family Curculionidae) and Potosia morio F. (Family Scarabaeidae). Order Diptera was represented by two species; Acanthiophilus helianthi Rossi and Chaetorellia carthami Stack (Family Tephritidae). Order Hemiptera was represented by three species, Anthocoris sp. (Family Anthocoridae), Spilostethus pandurus Scop. (Family Lygaeidae) and Dolycoris baccarum L. (Family Pentatomidae). Order Homoptera was represented by three species, Aphis compositae Theobald and A. craccivora Koch (Family Aphididae), and Empoasca sp. (Family Cicadellidae). Order Hymenoptera was represented by three species; Andrena sp. and Apis mellifera L. (Family Apidae), and Megachile sp. (Family Megachilidae). Order Lepidoptera was represented by six species; Pieris rapae L. and Colias croceus Fourc. (Family Pieridae), Pyrgus sp. (Family Hesperidae), Vanessa cardui L. (Family Nympalidae), Pyronia sp. (Family Satyridae), and Macroglossa stellatarum L. (Family Sphingidae). Order Thysanoptera was represented by one species, Thrips sp. (Family Thripidae). The results suggest that the species; A. annularis, A. cardui, Larinus sp., Lixus sp., P. morio, A. helianthi and C. carthami can be used as biological control agents for controlling the thistle plant, Cynara sp. at El-Baida area, El-Gabal El-Akhdar, Libya.
https://jppp.journals.ekb.eg/article_86654_6b8b5daea392c7d320bc68dda6d65124.pdf
eng
Mansoura University, Faculty of Agriculture
Journal of Plant Protection and Pathology
2090-3677
2090-3758
2010-01-01
1
1
43
49
10.21608/jppp.2010.86655
86655
Original Article
EVALUATION OF THE ROLE OF CERTAIN MORTALITY FACTORS OF Coccinella undecimpunctata L. (COLEOPTERA: COCCINELLIDAE) ON DIFFERENT CROPS AT KAFR EL-SHEIKH GOVERNORATE.
A. Abdel-Salam
adhabdelus@yahoo.com
1
Hala El-Serafi
2
A. Mesbah
3
Ghada Abdel-Hamed
4
Economic Entomology Dept., Fac. of Agric., Mansoura Univ., Mansoura 35516, Egypt
Economic Entomology Dept., Fac. of Agric., Mansoura Univ., Mansoura 35516, Egypt
Plant Protection Res. Inst., Agric. Res. Center, Ministry of Agric., Giza, Egypt
Plant Protection Res. Inst., Agric. Res. Center, Ministry of Agric., Giza, Egypt
The present study was carried out in both laboratory and the experimental field of Sakha Agricultural Research Station, Kafr El-Sheikh Governorate during two successive seasons (2008 and 2009) to evaluate the role of certain mortality factors in reducing the field populations of Coccinella undecimpunctata L. on different crops. The coccinellid predator was recorded to be parasitized by the two hymenopterous parasitoids, Tetrastichus coccinellae Kurdjumove (Eulophidae), and to be infected with bacteria Bacillus spp. and two species of fungi (Penicillium sp. and Fusarium sp.).
Overall crops during 2008, the highest percentage of the total population mortality was caused by parasitoids (49.88%) and the lowest by unknown mortality (2.24%), as well as the highest contribution in the total mortality was recorded by parasitoids and the lowest by unknown mortality. The mortality was caused by fungi came in the second rank (6.73%) and contributed to (10.71%) of total mortality. Mortality was caused by bacteria contributed with low percentage in the total mortality (6.35%). During 2009, on different crops, the highest percentage of the total population mortality was caused by parasitoids (48.27%) and the lowest by bacteria mortality (4.70%), as well as the highest contribution in the total mortality was recorded by parasitoids and the lowest by bacteria mortality. The mortality was caused by unknown came in the second rank (8.91%) and contributed to (12.90%) of total mortality. Mortality was caused by fungi came in the third rank and contributed with 10.39% in the total mortality.
https://jppp.journals.ekb.eg/article_86655_73e90a7c4ad70fda783ff4bd44c73374.pdf
Coccinella undecimpunctata
mortality factors
Parasitism
fungi
Bacteria
eng
Mansoura University, Faculty of Agriculture
Journal of Plant Protection and Pathology
2090-3677
2090-3758
2010-01-01
1
1
51
62
10.21608/jppp.2010.86656
86656
Original Article
BIOLOGICAL ATTRIBUTES AND LIFE TABLE PARAMETERS OF Nephus includens (Kirsch) (Coleoptera: Coccinellidae) AS A NATURAL ENEMY OF MARGARODID MEALYBUGS IN EGYPT.
A. Abdel-Salam
adhabdelus@yahoo.com
1
A. Ghanim
2
Hagar Awadalla
3
Economic Entomology Dept., Fac. of Agric., Mansoura Univ., Mansoura 35516, Egypt
Economic Entomology Department, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt
Plant Protection Research Institute, Agricultural Research Center, Ministry of Agriculture, Giza, Egypt
Developmental time and rate of immature stages, growth index, survival percentage, longevity, fecundity, and life table parameters of Nephus includens (Kirsch) were investigated when reared on the three mealybug species namely, Icerya purchasi, Icerya aegyptiaca, and Icerya seychellarum at 28oC.
There was no significant variation in the incubation periods for N. includens when the predator was reared on the three tested preys. ANOVA showed that there were no significant differences in 1st, 2nd, 3rd, and 4th instars larvae when the predator was reared on the three tested preys. The total developmental time of immature stages was 26.3, 25.9, and 28.2 days on the three tested preys, with significant differences. Growth index of N. includens was 2.8517, 2.9069, and 2.4823 on the three tested preys, respectively. Developmental rates of the total immature stages were 0.0380, 0.0388, and 0.0355 on the three tested preys, with no significant difference. Results indicated that the survival percentages of immature stages when reared onI. purchasi and I. aegyptiaca were higher than on I. seychellarum.
There were no significant differences in pre-oviposition, oviposition, inter-oviposition, and total longevity periods among the three tested preys. Male longevity was 61.33, 63.83, and 53.17 days with no significant difference among the three tested preys. Fecundity of females was 94.17, 122.17, and 50.67 with significant differences among the three tested preys.
The mean generation time (T) was 41.66, 43.94, and 48.22 days, respectively when reared on the three tested preys. The population of this predator could be doubled every 76.30, 8.80, and 127.60 days on I. purchasi, I. aegyptiaca, and I. seychellarum at 28oC. The values of gross reproductive rate (GRR) were 69.82, 57.52, and 31.86. Ro was 44.03, 31.94 and 13.73 when reared on the three tested preys. The intrinsic rate of increase (rm) was 0.0091, 0.0788, and 0.0054 when reared on I. purchasi, I. aegyptiaca, and I. seychellarum at 28oC. The finite rate of increase (λ) was 1.0951, 1.0820, and 1.0558 on the three tested preys. The survivorship (Lx) for female age intervals was 64.0, 68.0, and 58.0 on the three tested preys, respectively.
https://jppp.journals.ekb.eg/article_86656_75ab090e857edfecb1379cbe07e6c17e.pdf
Nephus includens
biological attributes
life table
Icerya purchasi
Icerya aegyptiaca
Icerya seychellarum