Mansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-3677111120201101Toxicological Effects of five Insecticides on Cabbage Aphid, Brevicoryne brassicae (L.) (Homoptera: Aphididae) and its Parasitoid Aphelinus sp. (Hymenoptera:Aphelinidae)53153613178910.21608/jppp.2020.131789ENA. M. AliDepartment of plant protection -faculty of agriculture - Minia university - EgyptMarwa F. K.AlyPlant Protection Department, Faculty of Agriculture, Minia University, El Minya, EgyptJournal Article20201101Cabbage aphid, <em>Brevicoryne brassicae</em> (L.) is an important agricultural insect pest that attacks many vegetable crops all over the world. Herein, the study was conducted to evaluate the efficacy of five insecticides, acetameprid 20% SP (neonicotinoid), abamactin 1.8% EC (avermectin), indoxicarb 15% EC (oxadiazine), chlorpyrifos methyl 50%EC (organophosphate) and lambda cyhalothrin 5% EC (pyrethroid) against cabbage aphids <em>Brevicoryne brassicae</em> (L.) and its parasitoid <em>Aphelinus </em>sp. under laboratory conditions. Mortality percentages for both cabbage aphid and parasitoid were determined after 24, 48 and 72-h after treatment. Result revealed that acetamiprid was the greatest toxic insecticide against cabbage aphid followed by abamectin and indoxacarb after 24 and 48-h of treatment. Otherwise, lambda cyhalothrin followed by chlorpyrifos methyl was the lowest toxicity on cabbage aphid after 24 and 48-h from treatment. In contrast, toxicological results for parasitoid suggested that acetamiprid had less toxicity followed by abamectin and indoxacarb after 24 and 48-h of treatment. whereas, lambda cyhalothrin followed by chlorpyrifos methyl demonstrated great toxicity on the parasitoid after 24 and 48-h of treatment. In addition, safety factor for each treatment was determined, and results revealed that greater safety factor was recorded for acetamiprid, abamectin and indoxacarb than chlorpyrifos methyl and lambda cyhalothrin. Thus, these results suggest that acetamiprid can be included in the Integrated Pest Management (IPM) Program against cabbage aphid with safe side and minimum harmful effect on its parasitoid.https://jppp.journals.ekb.eg/article_131789_e7c2a71c7294d925ff4674eb9f767242.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-3677111120201101Efficacy of some Trichoderma Species on Management of Sunflower Head-Rot53754213179610.21608/jppp.2020.131796ENInas A.El-IbrahimePlant pathology Res. Inst., ARC, Giza, Egypt.Khamis A.MouradOil crops Res. Inst, ARC, Giza, Egypt.Journal Article20201103The efficacy of different <em>Trichoderma</em> species were evaluated <em>in vitro</em> and under field conditions against five pathogenic of sunflower head-rot fungi (HRF). Bioagents were applied by three application methods during 2015and2016 growing seasons. <em>In vitro</em>, six species of <em>Trichoderma harzinum</em>, <em>T.virid T</em>.<em>hamatum, T.koningii, T</em>.<em>reesei</em> and <em>T.polysporum</em> were selected for field studies.Both of <em>T</em>. <em>harzianum</em> and <em>T</em>. <em>viride</em> recordid the highest antagonistic potential against almost of the pathogenic fungi followed by <em>T.reesei</em>. In field experiments, the tested bioagents were studied in series of experiments using different three application methods,<em> i.e.</em> foliar spray [F.S.], soil drench[S.D.] and foliar spray with soil drench[F.S.+ S.D.].These bioagents were applied at three stages <em>i.e.</em> 30, 45 and 60 days after sowing. Head diameter, stem diameter, leaf area, seed number per head, 1000 seed weight , seed yield per plant, yield per plot and yield per feddan were determined as crop parameters. Results indicated that the three application methods gave the lowest values of disease incidence and increased crop parameters compared with untreated plants. The highest antagonistic activity was achieved with <em>T.harzinum</em> when applied as foliar spray which gave the highest percentage of disease reduction and increased crop parameters during both seasons, followed by strain of <em>T.viride</em> when applied as soil drench and <em>T.</em> <em>reesei</em> when applied as (soil drench and foliar spray), respectively.https://jppp.journals.ekb.eg/article_131796_d0f5f64ad9cf68cabb7983fef8f2c245.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-3677111120201101Controlling the Chocolate Banded Snail, Eobania vermiculata by Using some Insecticides at Minia Governrate, Egypt54354713322810.21608/jppp.2020.133228ENA. M. AliPlant Protection Department, Faculty of Agriculture, Minia University, Minia, Egypt.A. S. M. H.EL RobyPlant Protection Dept. Faculty of Agriculture, Minia University, EgyptH. M. HassanPlant Protection Department, Faculty of Agriculture, Minia University, Minia, Egypt.Journal Article20201105The initial mortality of the tested insecticides showed significant superiority of methomyl, abamectin, and thiamethoxam in their effect against <em>Eobania vermiculata</em> wich causing 100% snail mortality and 100% reduction in food consumed by this snail. Acetamiprid SP, azadirachtin and imidacloprid recorded 95.74, 87.23, and 87.23% reduction in food consumption and acute mortality 90, 85, and 80%, respectively. While as acetamiprid SL, amitraz and the mixture of pymetrozine 50% + cyantraniliprole10% gave the least effect in their initial effect and food consumption (70, 65 and 60 % initial mortality % and.74.76, 55.3 and 55.31% in food consumption respectively). The residual effect of the tested insecticides on, <em>E. vermiculata </em>after three days from the field treatment showed also the superiority of methomyl, abamectin, thiamethoxam, and acetamiprid SP in their effects against <em>E. vermiculata</em> causing mortality of 90, 90, 85, and 85 % and highly reduction % in food consumption as compared with control treatment gave 96.07, 96.07, 92.15 and 96.07 reduction %, respectively followed by azadirachtin, imidacloprid and acetamiprid SL that recorded mortality 75, 70 and 65 %, respectively while amitraz and the mixture of (pymetrozine50%+ cyantraniliprole 10% recorded 50 and 45 % mortality. The residual effect after seven days was in descending order as follows 85, 85, 80, 75, 70, 65, 55, 40, and 37 % with methomyl, abamectin, acetamiprid SP, thiamethoxam, azadirachtin, imidacloprid, acetamiprid SL, amitraz and the mixture of pymetrozine50%+ cyantraniliprole 10%), respectively. From these results, it could be concluded that these insecticides can give excellent protection against the chocolate banded snail, <em>E. vermiculata.</em>https://jppp.journals.ekb.eg/article_133228_fcae9e489fd93c06dbeab179a1aec2ff.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-3677111120201101Potential Alternative Hosts and Transmissibility of Potato virus Y54955313323210.21608/jppp.2020.133232ENM. N. RizkPlant Pathology Department, Faculty of Agriculture, Mansoura University, El-Mansoura 35516, EgyptH. A. KettaAgricultural Botany Department, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, EgyptY. M. ShabanaPlant Pathology Department, Faculty of Agriculture, Mansoura University, El-Mansoura 35516, EgyptJournal Article20201106To study the potential alternative hosts to <em>Potato virus Y</em> (PVY), thirteen different plant species, <em>Solanum tuberosum </em>cv<em>. </em>Spounta L., <em>S. tuberosum</em> cv. Cara L., <em>Datura stramonium</em> L., <em>D. metel</em> L., <em>Nicotiana tabacum</em> cv. White Burley L., <em>Chenopodium amaranticolor</em> (H.J.Coste & A.Reyn.) H.J.Coste & A.Reyn., <em>Solanum lycopersicum </em>L., <em>S. melongena </em>L., <em>Capsicum annuum </em>L<em>.</em>, <em>Phaseolus vulgaris </em>L.,<em> Vicia faba </em>L., <em>Brassica oleracea</em> L. and <em>Lactuca sativa</em> L., belonging to five botanical families were tested. Nine of the above tested plant species reacted to PVY isolate with different symptoms, while four of plant species <em>D. stramonium</em>, <em>V. faba</em>, <em>B. oleracea</em> and <em>L. sativa</em> did not react to PVY isolate. Mechanical transmission of PVY was confirmed from infected potato to healthy <em>D. metel</em> plants and back from PVY-inoculated <em>D. metel</em> to healthy potato plants with 100% success. Insect transmission was also confirmed from infected potato plants to healthy ones through aphid <em>Myzus persicae</em> with 80%. Virus particles of PVY were examined using transmission electron microscopy (TEM). Typical PVY particle size of 11 × 700 nm with flexuous filamentous shape was observed. https://jppp.journals.ekb.eg/article_133232_f3bd421af2706c93eb477ec51ac0bf1d.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-3677111120201101Influence of Sowing Dates on the Aphid Species Attacking Cucumber Crop in Fayoum Governorate55555813325510.21608/jppp.2020.133255ENS. S.AwadallaEconomic Entomology Department, Faculty of Agriculture, Mansoura University, EgyptHala A. K.El-SerfiEconomic Entomology Department, Faculty of Agriculture, Mansoura University, EgyptM. A. El-HariryPlant Protection Research Institute, Agricultural Research Center, Giza, EgyptA. M. WahshPlant Protection Research Institute, Agricultural Research Center, Giza, EgyptJournal Article20201109The present experiments were conducted in a private cucumber field in Ibshwai, Fayoum governorate during the two successive years (2018 and 2019) to evaluate the influence of sowing dates on the aphid species that attacking cucumber crop in Fayoum governorate. The cotton aphid <em>Aphis gossypii</em> reached the highest peak of abundance in March sowing date in the fourth week of April 2018 (916 individuals/sample) and in the first week of May 2019 (1083 individuals/sample). While, in August sowing date, <em>A. gossypii</em> reached the highest peak of abundance in the fourth week of October 2018 and 2019 with 671 and 783 individuals/sample, respectively. Moreover, in October sowing date, <em>A. gossypii</em> reached the highest peak of abundance in the second week of November 2018 and in the third week of November 2019 and represented by 934 and 1214 individuals/sample, during the two years, respectively. The green peach aphid, <em>Myzus persicae</em> recorded the highest peak of abundance in March sowing date in the second week of April 2018 (317 individuals/sample) and in the fourth week of April 2019 (324 individuals/sample). While in August sowing date M. persicae recorded the highest peak of abundance in the second week of October 2018 and in the fourth week of September 2019 and presented by 428 and 302 individuals/sample, respectively. Meanwhile, in October sowing date, <em>M. persicae</em> recorded the highest peak of abundance in the second week of November 2018 and 2019 and presented by 183 and 124 individuals/sample, respectively.https://jppp.journals.ekb.eg/article_133255_fd8de80754dde69f479c92a20f7ceebc.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-3677111120201101Influence of Different Cucumber Varieties on the Occurrence of the Piercing-Sucking Insect Pests in Fayoum Governorate55956113325810.21608/jppp.2020.133258ENS. S.AwadallaEconomic Entomology Department, Faculty of Agriculture, Mansoura University, EgyptHala A. K.El-SerfiEconomic Entomology Department, Faculty of Agriculture, Mansoura University, EgyptM. A. El-HariryPlant Protection Research Institute, Agricultural Research Center, Giza, EgyptA. M. WahshPlant Protection Research Institute, Agricultural Research Center, Giza, EgyptJournal Article20201111The present experiments were conducted in a private cucumber field in Ibshwai, Fayoum governorate during the two successive years (2018 and 2019) to examine the influence of different cucumber varieties on the occurrence of the piercing-sucking insect pests in Fayoum governorate. Cucumber variety Reda F1 hybrid followed by variety Sweet Cransh F1 hybrid attracted the highest average number of the cotton aphid <em>Aphis gossypii</em> followed by the cotton whitefly <em>Bemisia tabaci</em>, the leafhopper <em>Empoasca decedens</em>, the green peach aphid <em>Myzus persicae</em> and the potato leafhopper <em>Empoasca decipiens</em> during the two years 2018 and 2019. Cucumber variety Hayel F1 hybrid followed variety Mayadine F1 hybrid hosted the lowest average number of the aforementioned insect pests during the two years. Cucumber variety Hayel F1 hybrid followed by Mayadine F1 hybrid, Reda F1 hybrid and Sweet Cransh F1 hybrid hosted the lowest average number of the green sting bug <em>Nezara viridula</em> followed by the cotton mealybug <em>Planococcus solenopsis</em> and the onion thrips <em>Thrips tabaci</em> during the two years. Cucumber variety Hayel F1 hybrid had the lowest rate of occurrence (23.3 and 23.5 %) followed by Mayadine F1 hybrid (24.6 and 23.9 %) during the two years 2018 and 2019, respectively.https://jppp.journals.ekb.eg/article_133258_d7579a5d80966be8b17a5ec71119247a.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-3677111120201101Effect of Different Host Plants on some Biological Aspects of the Two Sugar Beet Flies Pegomyia mixta and Pegomyia hyoscami (Anthomyiidae: Diptera)56356513344210.21608/jppp.2020.133442ENS. S.AwadallaEconomic Entomology Department, Faculty of Agriculture, Mansoura University, EgyptM. H. BayoumyEconomic Entomology Departement. Faculty of Agricultural, Mansoura University, Egypt.F. A. Abd AllahPlant protection Institute. Agricultural Research Center. Giza, Egypt.Hala H.HawilaPlant protection Institute. Agricultural Research Center. Giza, Egypt.Journal Article20201111The highest average number of egg-laying of <em>P. mixta</em> and <em>P. hyoscami </em>were recorded in sugar beet, followed by fodder beet, chard plants and table beet plants. Also, the highest incubation period were recorded in table beet plants. The highest percentage of hatchability in <em>P. mixta</em> was in fodder beet plants. As for <em>P. hyoscami</em>, it was in sugar beet plants. The shortest larval duration, pupal duration and the total immature stages recorded when reared <em>P. mixta</em> on sugar beet plants and presented by 14.1±0.35, 21.9±0.62 and 42.2±0.92 days, respectively. While, when reared <em>P. mixta</em> in table beet recorded the highest larval, pupal and total immature stages and presented by 20.9±0.48, 27.5±0.47 and 55.6±0.45 days, respectively. Also, for <em>P. hyoscami</em>, the shortest larval duration and pupal duration recorded when reared <em>P. hyoscami</em> on sugar beet plants and presented by 11.9±1.61, 17.6±2.46 days but the shortest total immature stages duration recorded when reared <em>P. hyoscami</em> on fodder beet and presented by 36.4±2.95 days, respectively. While, when reared <em>P. hyoscami</em> in table beet recorded the highest larval, pupal and total immature stages and presented by 17.3±2.35, 22.1±3.00 and 47.7±4.16 days, respectively. The longest longevity was recorded with <em>P. mixta</em> females for each host plant and <em>P. hyoscami</em> recorded the shortest adult longevity for each host plant. Sugar beet and fodder beet recorded the longest adult longevity.https://jppp.journals.ekb.eg/article_133442_aed8c33f49a5ba51242b2221325a7f0d.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-3677111120201101Effect of Different Sugar Beet Plantations on the Sugar Beet Moth, Scrobipalpa ocellatella Boyd. and its Insect Parasitoids in Kafr El-Sheikh Governorate56756913351210.21608/jppp.2020.133512ENS. S.AwadallaEconomic Entomology Department, Faculty of Agriculture, Mansoura University, EgyptM. H. BayoumyEconomic Entomology Departement. Faculty of Agricultural, Mansoura University, Egypt.F. A. Abd AllahPlant protection Institute. Agricultural Research Center. Giza, Egypt.Hala H.HawilaPlant protection Institute. Agricultural Research Center. Giza, Egypt.Journal Article20201113The highest average number of the total number of the sugar beet moth, <em>Scrobipalpa ocellatella</em> larvae and the highest average number of the healthy larvae were recorded in October plantation and presented by 20.1±1.75 and 14.4±1.68 individuals On the other hand, the average number of the parasitized larvae caused by <em>Agathis</em> sp. was ranged between 0.3±0.33 individuals in September plantation and 0.8±0.24 individuals in November plantation during the first season, 2018/19. while in the second season 2019/20, the highest average number of the total <em>S.</em> <em>ocellatella</em> larvae and the highest average number of the healthy larvae were recorded in August plantation and presented by 14.4±2.01 and 9.4±2.29 individuals On the other hand, the average number of the parasitized larvae caused by <em>Agathis</em> sp. was ranged between 1.0±0.58 individuals in September plantation and 1.6±0.40 indiv.in August plantation. The percentage of parasitism caused by the larval parasitoid, <em>Agathis</em> sp. was the highest in August plantation during the first season and in October plantation during the second season and presented by 7.5 and 17.7%, respectively. The highest average number of the total <em>S. ocellatella</em> pupae and the highest average number of emerged moth were recorded in October plantation and represented by 17.3±1.72 and 14.4±1.68 individuals Furthermore, the average number of parasitized pupae caused by <em>Diadegma</em> sp. was ranged between 0.6±0.24 individuals in August plantation and 2.5±0.42 individuals in October plantation in the first season. While in the second season, the highest average number of the total <em>S. ocellatella</em> pupae and the highest average number of emerged moth were recorded in August plantation and represented by 11.2±1.93 and 9.4±2.29 individualshttps://jppp.journals.ekb.eg/article_133512_4f2e25025371e77f4873d44f18098a9c.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-3677111120201101Evaluation of the Insecticidal Activity of Punica granatum L. and Olea europaea L. against the Dry Bean Beetle , Acanthoscelides obtectus (Say) (Coleoptera:Bruchidae)57157813351510.21608/jppp.2020.133515ENGhada SalahMohamedplant protection, faculty of agriculture, south valley university, Qena, EgyptJournal Article20201114A laboratory study was carried to determine the efficacy of <em>Punica granatum</em> Linn. and <em>Olea europaea</em> L. leaf powders against adults of the dry bean beetle, <em>Acanthoscelides obtectus</em> (Say) (Coleoptera:Bruchidae) under laboratory conditions . The death rate of <em>A. obtectus</em> increased gradually with increasing the concentration and period of exposure to powdered plant leaves. After 120 hours of exposure to the powdered plant leaves, <em>P. granatum</em> caused adult mortality 82.17%, while <em>O. europaea</em> caused adult death 68.14%. In case of <em>P. granatum</em> leaf powders, the LC<sub>50</sub> value was 16.73 g / 30 g white kidney bean while LT<sub>50 </sub>recorded 69.01 hours at 25 g / 30 g white kidney bean. While the maximum effectiveness of inhibition oviposition was recorded by using <em>P. granatum</em> leaf powder (75.06 %) compared to <em>O. europaea</em> (53.11 %). A decrease in adult exit was reported among the treatments and the maximum decrease was noticed in the dry white beans with the highest dose rate leaves powder of <em>P. granatum</em> (68.19%) and O. europaea (52.38%). Results obtained from this study revealed that the used plant leaf powders significantly reduced the infestation and the weight loss for white kidney bean. However, <em>P. granatum</em> had higher activity against <em>A. obtectus</em> than <em>O. europaea</em>. There is no doubt that both plants under study have a significant effect on the pest, and accordingly, they can be used in the production of environmentally friendly plant-based insecticides.https://jppp.journals.ekb.eg/article_133515_293c77fedaa5e393705a6910cbd2f52d.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-3677111120201101Toxicological and Biochemical Effects of Beauveria bassiana (Bals.) on Peach Fruit Fly, Bactrocera zonata (Saunders) Immature Stages57958513380510.21608/jppp.2020.133805ENNehad A.SolimanPlant Protection Research Institute, ARC, Dokki, Giza, Egypt.7, Nadi El-Said st., 12618Journal Article20201115Peach fruit fly, <em>Bactrocera zonata</em> (Saunders) is a destructive pest of horticultural crops in Egypt. The aim of the study is to find a natural eco-friendly control bioagents of this insect. The entomopathogenic fungus,<em> Beauveria bassiana </em>(Bals.) infected the immature stages of this insect and viewed concentration dependent patterns. Flies were the most susceptible stage of the fungal infection. Enzymatic activity measures of <em>B. bassiana</em> endorsed chitinase, protease and lipase activities. Biochemical analysis of infected larvae showed increases and decreases and decreased in total proteins, carbohydrates and lipids. An extreme increase in phenoloxidase level was recorded after 24 and 48 hours from infection. Acetylcholinesterase showed a decrease after 24 hours from infection followed by an increase after 48 hours. <em>B. bassiana</em> could be included in IPM programs as a control agent against <em>B. zonata</em>.https://jppp.journals.ekb.eg/article_133805_043c2596306ada19dc8000666e9faff2.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-3677111120201101Influence of Methyl Eugenol Diluted with Oleic Acid as Lure for the Peach Fruit Fly (PFF) Males, Bactrocera zonata (Saunders) under Filed Conditions58759013380710.21608/jppp.2020.133807ENM. M. El-MetwallyAgric. Res. Center (ARC), Minstry of Agriculture, Egypt.Salma Kh.RagabAgric. Res. Center (ARC), Minstry of Agriculture, Egypt.Journal Article20201116The efficiency of methyl eugenol diluted with oleic acid was evaluated against the peach fruit fly, <em>Bactrocera zonata</em>(Saunders) in guava and mandarin orchards. Four concentrations (98, 75, 50 and 25 %) weretested by using yellow Jackson trap. The obtained results indicated that <em>B. zonata </em>males showed different degrees of attractancy for the different tested concentrations in both orchards.In guava orchards, methyl eugenol attracted the highest numbers of <em>B. zonata </em>males at a concentration of 75% followed by 98, 50 and 25% with a general mean of 74.8, 66.37, 51.49 and 29.52 individuals/trap / week, respectively. Also, in mandarin the concentration of75% exhibited the highest attractiveness (19.05) for PFF males, while the concentration of 50% ranked the second group and recorded the moderate level of attractiveness (14.47) followed by 25% (11.78) and 98% (10.68individuals/trap / week). The regression of the attractiveness of each tested concentration to PFF males over 70 days in guava and mandarin orchards revealed that the potentiality of the tested varied according to the concentration used. However, the efficiency of methyl eugenol at 75% concentration slightly decreased by the time in comparison with other tested concentrations in both orchards.https://jppp.journals.ekb.eg/article_133807_c23448aea1084e418d03a29d984b70c8.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-3677111120201101Comparison between Toxicological and Biological Efficiency of some Aromatic Oils and other Compounds on Two Spotted Spider Mite59159313381010.21608/jppp.2020.133810ENMalakah F. I.EL SadanyPlant Protect. Res. Inst. Sakha Agric. Res Station, Kafr EL-Sheikh.R. I. E. MagouzPlant Protect. Res. Inst. Sakha Agric. Res Station, Kafr EL-Sheikh.Rabab A. M.HammadPlant Protect. Res. Inst. Sakha Agric. Res Station, Kafr EL-Sheikh.Journal Article20201117Control of the two spotted spider mite, <em>Tetranychus urticae</em>(Koch) using the conventional acaricides resulted in many problems . So, this study was carried out to evaluate the toxicity of certain alternative pesticides against this pest ,<em>T. urticae</em> as well as some biological aspects under laboratory conditions using two aromatic oils (Basil and Carnation) .one natural oil (Nat-1) and one conventional acaricide (Helbstar). The results indicated that Helbstar was the highest toxic compound to adult females of <em>T. urticae</em> followed by Nat-1 with Lc50 values of 1686.5 and 2861.5 ppm, respectively while Basil was the least toxic one with Lc50 value of 5990.4 ppm . The population showed more homogeneity in its response to the aromatic oils (Basil and carnation). Also, the results showed that the Helbstar caused the highest reduction in egg deposition with a mean number of 1.0 egg / day followed by Nat-1 with a mean number of 4.45 eggs / day , while Carnation was the lowest one with a mean number of 11.85 egg / day. The egg hatchability decreased with the increase of egg age at treatment by Basil , while in treating 1,2 and 3 day old eggs , the highest reduction in hatchability was found for Nat-1 , Helbstar and Carnation, with 100% reduction in hatchability at the three ages .Thus, the obtained results are of a great importance as they are taken into account in planning programs of integrated pest management.https://jppp.journals.ekb.eg/article_133810_e59d775d81e411effcbee92d587b7a69.pdfMansoura University, Faculty of AgricultureJournal of Plant Protection and Pathology2090-3677111120201101Fluctuation of Nematode Populations in some Vegetable Hosts under Drip and Conventional Irrigation Systems59559912870510.21608/jppp.2020.128705ENEntsar H.TahaDepartment of Plant Protection, Faculty of Agriculture, Ain Shams University, Cairo, Egypt0000-0001-8941-6608Journal Article20201120Water shortages have increased Egyptian growers interest towards drip irrigation. Conventional and drip, are two types of irrigation systems which wereselected to investigate their effect on the fluctuation of the populations of some plant parasitic nematodes on growth of different vegetable host plants: tomato(<em>Lycopersicon esculentum</em>)<em>, </em>eggplant(<em>Solanum melongena</em>), peppers(<em>Capsicum annum</em>)<em>, </em>cucumber(<em>Cucumis sativus</em>)<em>, </em>and cowpea(<em>Vigna sinenses</em>)<em>.</em> The predominant genera of plant parasitic nematodes recovered from soil samples (Pi & Pf) were <em>Meloidogyne, Helicotylenchus, Pratylenchus, Paratylenchus</em>,<em> Rotylenchulus</em>,<em> Hoplolaimus</em>,<em> Tylenchorhynchus</em>,and<em> Xiphinema</em>. On the whole the results showed that, <em>Meloidogyne </em>and <em>Pratylenchus </em>were the most common plant parasitic nematode in the plant hosts (cucumber tomatoeggplant peppers cowpea) and the nematode population were lesser in drip irrigated plants (97.3, 69.0, 87.0, 81.0, 83.3 and 71.3, 46.7, 69.7, 59.0 63.0) respectively, than those of conventional irrigation (104.3, 83.7, 93.0, 85.7, 88.0 and 75.3, 68.0, 80.3, 64.0, 72.3) respectively. We can conclude that, the drip irrigation system can be used as a Strategy of nematode pests in combination with different strategies without greatly affecting on the crop growth.https://jppp.journals.ekb.eg/article_128705_b2562f6772c3e3dc2adc15272372bd5e.pdf