Pub Date : 2023-10-23DOI: 10.21608/jppp.2023.236813.1179
Hend El-Nasharty
{"title":"Predatory Mite Fauna Associated with Some Agricultural Pests at Beheira Governorate, Egypt","authors":"Hend El-Nasharty","doi":"10.21608/jppp.2023.236813.1179","DOIUrl":"https://doi.org/10.21608/jppp.2023.236813.1179","url":null,"abstract":"","PeriodicalId":488603,"journal":{"name":"Journal of Plant Protection and Pathology (Print)","volume":"28 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135459862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-21DOI: 10.21608/jppp.2023.240418.1183
S. Awadalla, Marwa Ramadan, A. Hashem, Amira Abdel-Hady, Omnia Abdel- Ghany
Control ways in stored-product soils mainly rely on alternative pesticides. The modification of new environmentally friendly alternatives, such as essential oils (EOs), is a key issue. The aim of the current study was to develop three commercialized essential oils that were examined for fumigant and contact acts against adults of the saw toothed grain beetle, Oryzaephilus surinamensis )L.( (Coleoptera: Silvanidae). In general, the results of this study showed that with increasing concentration and duration of exposure, toxicity activity increased and weight loss decreased. In case of fumigant tests, orange oil outperformed anise oil in terms of effectiveness against O. surinamensis adults. While, anise oil showed a higher toxicity level of contact compared to the other two oils, particularly against adult O. surinamensis . The results of this study suggest that these essential oils can be used as viable alternatives to pesticides against O. surinamensis in stored grains and stored materials.
{"title":"Fumigant and Toxic Activities of Three Essential Oils Against Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae)","authors":"S. Awadalla, Marwa Ramadan, A. Hashem, Amira Abdel-Hady, Omnia Abdel- Ghany","doi":"10.21608/jppp.2023.240418.1183","DOIUrl":"https://doi.org/10.21608/jppp.2023.240418.1183","url":null,"abstract":"Control ways in stored-product soils mainly rely on alternative pesticides. The modification of new environmentally friendly alternatives, such as essential oils (EOs), is a key issue. The aim of the current study was to develop three commercialized essential oils that were examined for fumigant and contact acts against adults of the saw toothed grain beetle, Oryzaephilus surinamensis )L.( (Coleoptera: Silvanidae). In general, the results of this study showed that with increasing concentration and duration of exposure, toxicity activity increased and weight loss decreased. In case of fumigant tests, orange oil outperformed anise oil in terms of effectiveness against O. surinamensis adults. While, anise oil showed a higher toxicity level of contact compared to the other two oils, particularly against adult O. surinamensis . The results of this study suggest that these essential oils can be used as viable alternatives to pesticides against O. surinamensis in stored grains and stored materials.","PeriodicalId":488603,"journal":{"name":"Journal of Plant Protection and Pathology (Print)","volume":"89 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135513864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-17DOI: 10.21608/jppp.2023.239010.1181
Gamila Heikal, Abla Saad
Current study aimed to evaluate the management of Egyptian Mealybug, Icerya aegyptiaca (Douglas) (Hemiptera: Coccoidea) infesting Agave Cactus, Agave americana L. (Fam.: Agavaceae) through releasing different levels of parasitoid Anagyrus pseudococci (Girault) (Hymenoptera: Encyrtidae). Experiments were conducted on Agave Cactus during 2022 at two different areas (governorates), Al-Zohrya park (Cairo Governorate) and Antoniadis park (Alexandria Governorate) . Three levels of the parasitoid A. pseudococci were released at both of the two successive zones; 25 egg /plant, 50egg /plant and 75egg /plant. Results obtained show that in Al-Zohrya park in the 1 st level of the parasitoid releasing (25egg /plant) the percentage of reduction (%) in the mean number of the successive insect I. aegyptiaca increased gradually whereas it was 23, 34, 44, 54 and 61% on first-March, mid-March, first-April, mid-April, first-May and mid-May respectively. Also, in the 2 nd level of the parasitoid releasing (50eggs/plant) the percentage of reduction % in the mean number of I. aegyptiaca were increased gradually to reach to; 26, 38, 47, 57 and 69% respectively in the same times. Lastly, in the 3 rd level of the parasitoid releasing (75 eggs/plant) the percentage of reduction % in the mean number of I. aegyptiaca increased gradually to reach to; 29, 40, 52, 61 and 70 % respectively in the same times. Results were in the same trend in Antoniadis park.
{"title":"Biological Control of Egyptian Mealybug, Icerya aegyptiaca (Douglas) Infesting Agave Cactus, Agave americana by Releasing Parasitoid Anagyrus pseudococci","authors":"Gamila Heikal, Abla Saad","doi":"10.21608/jppp.2023.239010.1181","DOIUrl":"https://doi.org/10.21608/jppp.2023.239010.1181","url":null,"abstract":"Current study aimed to evaluate the management of Egyptian Mealybug, Icerya aegyptiaca (Douglas) (Hemiptera: Coccoidea) infesting Agave Cactus, Agave americana L. (Fam.: Agavaceae) through releasing different levels of parasitoid Anagyrus pseudococci (Girault) (Hymenoptera: Encyrtidae). Experiments were conducted on Agave Cactus during 2022 at two different areas (governorates), Al-Zohrya park (Cairo Governorate) and Antoniadis park (Alexandria Governorate) . Three levels of the parasitoid A. pseudococci were released at both of the two successive zones; 25 egg /plant, 50egg /plant and 75egg /plant. Results obtained show that in Al-Zohrya park in the 1 st level of the parasitoid releasing (25egg /plant) the percentage of reduction (%) in the mean number of the successive insect I. aegyptiaca increased gradually whereas it was 23, 34, 44, 54 and 61% on first-March, mid-March, first-April, mid-April, first-May and mid-May respectively. Also, in the 2 nd level of the parasitoid releasing (50eggs/plant) the percentage of reduction % in the mean number of I. aegyptiaca were increased gradually to reach to; 26, 38, 47, 57 and 69% respectively in the same times. Lastly, in the 3 rd level of the parasitoid releasing (75 eggs/plant) the percentage of reduction % in the mean number of I. aegyptiaca increased gradually to reach to; 29, 40, 52, 61 and 70 % respectively in the same times. Results were in the same trend in Antoniadis park.","PeriodicalId":488603,"journal":{"name":"Journal of Plant Protection and Pathology (Print)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136077837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-16DOI: 10.21608/jppp.2023.234426.1174
Esraa Eldeghidy, S. Hassanein, M. Gharib, sherin Helaly
The present study aimed to investigate the bio-efficiency of five plant powders (clove, black pepper, cinnamon, thyme and capsicum) against the adult stage of the saw-toothed grain beetle, Oryzaephilus surinamensis (L.) under open laboratory conditions at 27.13ºC and 47.67% RH. The botanical powders were admixed with the standard diet at various concentrations (0.5, 1, 2, 4, 5, 6, 7, 8, 12, 16 and 18 % w/w) and infested by adults to determine the percentage of adult mortality and some biological effects. The results showed that the percentage of adult mortality increased by increasing both of concentration of the tested plant powder and the exposure period. Generally, clove powder was the most effective plant powder against O. surinamensis recording the lowest values of LC 50 6.787, 5.562, 5.390, 5.256 and 5.256 after 1, 3, 5, 7 and 15 days, respectively. The tested plant powders affected the insect biological characters with various degrees, it was found that both clove and cinnamon powders shortened the growth period, while thyme prolonged the growth period compared to control. All tested powders reduced the progeny number compared to control, whereas clove was the most promising powders in control process where it produced the least progeny number (18.81 insects), while those of capsicum achieved activity on progeny number (64.20 insects). further, all tested powders reduced the percentage of weight loss compared with control.
{"title":"Biological Activity of Some Local Plant Powders against the Saw- Toothed Grain Beetle, Oryzaephilus surinamensis (L.)","authors":"Esraa Eldeghidy, S. Hassanein, M. Gharib, sherin Helaly","doi":"10.21608/jppp.2023.234426.1174","DOIUrl":"https://doi.org/10.21608/jppp.2023.234426.1174","url":null,"abstract":"The present study aimed to investigate the bio-efficiency of five plant powders (clove, black pepper, cinnamon, thyme and capsicum) against the adult stage of the saw-toothed grain beetle, Oryzaephilus surinamensis (L.) under open laboratory conditions at 27.13ºC and 47.67% RH. The botanical powders were admixed with the standard diet at various concentrations (0.5, 1, 2, 4, 5, 6, 7, 8, 12, 16 and 18 % w/w) and infested by adults to determine the percentage of adult mortality and some biological effects. The results showed that the percentage of adult mortality increased by increasing both of concentration of the tested plant powder and the exposure period. Generally, clove powder was the most effective plant powder against O. surinamensis recording the lowest values of LC 50 6.787, 5.562, 5.390, 5.256 and 5.256 after 1, 3, 5, 7 and 15 days, respectively. The tested plant powders affected the insect biological characters with various degrees, it was found that both clove and cinnamon powders shortened the growth period, while thyme prolonged the growth period compared to control. All tested powders reduced the progeny number compared to control, whereas clove was the most promising powders in control process where it produced the least progeny number (18.81 insects), while those of capsicum achieved activity on progeny number (64.20 insects). further, all tested powders reduced the percentage of weight loss compared with control.","PeriodicalId":488603,"journal":{"name":"Journal of Plant Protection and Pathology (Print)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136184069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-04DOI: 10.21608/jppp.2023.233644.1173
M. Awwad, A. Bashandy
{"title":"Evaluation of some Biological Aspects of Slug, Leidyula floridana (Leidy, 1851) in the Laboratory, and its Control in the Field","authors":"M. Awwad, A. Bashandy","doi":"10.21608/jppp.2023.233644.1173","DOIUrl":"https://doi.org/10.21608/jppp.2023.233644.1173","url":null,"abstract":"","PeriodicalId":488603,"journal":{"name":"Journal of Plant Protection and Pathology (Print)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135646592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-04DOI: 10.21608/jppp.2023.225629.1162
I. Ahmed, H. El- Saadany, Gamila Kotb, A. Farag, Sahar Ali, M. Mahmoud
Background: Humans and ecosystems are being harmed by the accumulation of synthetic pesticides in the environment. As a result, the use of bio-pesticides as an alternative to conventional pesticides has increased for control pests. Purpose: The investigation of both male and female rats' physiological status characteristics in relation to a single oral dose toxicity of Metarhizium anisopliae . Material and Methods: The local isolate of M. anisopliae (AUMC 5130)'s metabolic crude ( Ma C) and wettable powder formulation ( Ma F) were evaluated on Sprague Dawley male and female rats. Results: In either of the treated groups, there was no indication of a fatality or toxic effects. The results indicated that there were highly significant increase leucocyte and total erythrocyte counts of male and female treated with Ma F and Ma C, respectively, compared with control. Also, significant, and insignificant increase in male and female platelet count (Plt) treated with Ma F and Ma C, respectively. Significant, insignificant, and highly significant increase in male and female ALT, AST, and ALP, respectively, treated with both products ( Ma F and Ma C) of the tested fungus. While lipid profile (T. cholesterol, HDL, LDL and VLDL), levels were decrease in both male and female rats treated with both Ma C and Ma F compared with control. There have been observed physiological changes in the body weight gain and tissue somatic index of control and all treated animals. When used as bio-insecticides, Ma F and Ma C products had the opposite effect on body weight gain in rats - a considerable increase - when compared to control groups.
{"title":"Hematological and Biochemical Alterations Induced by Two Products from Metarhizium anisopliae after Oral Administration in Male and Female Albino Rats","authors":"I. Ahmed, H. El- Saadany, Gamila Kotb, A. Farag, Sahar Ali, M. Mahmoud","doi":"10.21608/jppp.2023.225629.1162","DOIUrl":"https://doi.org/10.21608/jppp.2023.225629.1162","url":null,"abstract":"Background: Humans and ecosystems are being harmed by the accumulation of synthetic pesticides in the environment. As a result, the use of bio-pesticides as an alternative to conventional pesticides has increased for control pests. Purpose: The investigation of both male and female rats' physiological status characteristics in relation to a single oral dose toxicity of Metarhizium anisopliae . Material and Methods: The local isolate of M. anisopliae (AUMC 5130)'s metabolic crude ( Ma C) and wettable powder formulation ( Ma F) were evaluated on Sprague Dawley male and female rats. Results: In either of the treated groups, there was no indication of a fatality or toxic effects. The results indicated that there were highly significant increase leucocyte and total erythrocyte counts of male and female treated with Ma F and Ma C, respectively, compared with control. Also, significant, and insignificant increase in male and female platelet count (Plt) treated with Ma F and Ma C, respectively. Significant, insignificant, and highly significant increase in male and female ALT, AST, and ALP, respectively, treated with both products ( Ma F and Ma C) of the tested fungus. While lipid profile (T. cholesterol, HDL, LDL and VLDL), levels were decrease in both male and female rats treated with both Ma C and Ma F compared with control. There have been observed physiological changes in the body weight gain and tissue somatic index of control and all treated animals. When used as bio-insecticides, Ma F and Ma C products had the opposite effect on body weight gain in rats - a considerable increase - when compared to control groups.","PeriodicalId":488603,"journal":{"name":"Journal of Plant Protection and Pathology (Print)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135646598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-04DOI: 10.21608/jppp.2023.235227.1175
S. Awadalla, M. Bayoumy, Asma El-Basuony
The application of C. carnea has accounted for one third of all successful biocontrol programs worldwide. For the successful application of pest control programs that use C. carnea as a biocontrol agent, it is necessary to recognize high quality food/prey. Larvae of C. carnea were provided with either eggs of one of Planococcus citri, Icerya aegyptiaca, I. seychellarum and their mixing or second-instars of one of those mealybug species and one more species, Planococcus solenopsis. These feeding trials were conducted at 25.0±1.0 °C and 65±5% R.H. Eggs of I . aegyptiaca accelerated development of C. carnea . Eggs of mealybug species significantly affected oviposition period, female and male longevities, and fecundity. The longest female and male longevities were obtained when predator's larvae fed on mixing mealybug eggs. The highest female fecundity was when predator's larvae fed with P. citri eggs. Female fertility ranged between 98 and 99% in relation to mealybug eggs consumed. In case of using second-instar mealybugs as a food, the shortest developmental time and longest female longevity was when predator's larvae fed on second-instars of P. citri . second-instar mealybugs significantly affected female fecundity with the highest fecundity was for those their larvae fed on second-instars P. citri and P. solenopsis . Female fertility ranged between 97 and 98% in relation to type of second-instar mealybugs that provided for predator's larvae. The success of any predator majorly depends on the nutritional quality of its prey. These information will be useful for the formulation of Integrated Pest Management (IPM) programs.
{"title":"Effect of Single- And Mixed-Resource Diets of Mealybug Stages on Developmental and Reproductive Performances of the Green Lacewing, Chrysoperla carnea","authors":"S. Awadalla, M. Bayoumy, Asma El-Basuony","doi":"10.21608/jppp.2023.235227.1175","DOIUrl":"https://doi.org/10.21608/jppp.2023.235227.1175","url":null,"abstract":"The application of C. carnea has accounted for one third of all successful biocontrol programs worldwide. For the successful application of pest control programs that use C. carnea as a biocontrol agent, it is necessary to recognize high quality food/prey. Larvae of C. carnea were provided with either eggs of one of Planococcus citri, Icerya aegyptiaca, I. seychellarum and their mixing or second-instars of one of those mealybug species and one more species, Planococcus solenopsis. These feeding trials were conducted at 25.0±1.0 °C and 65±5% R.H. Eggs of I . aegyptiaca accelerated development of C. carnea . Eggs of mealybug species significantly affected oviposition period, female and male longevities, and fecundity. The longest female and male longevities were obtained when predator's larvae fed on mixing mealybug eggs. The highest female fecundity was when predator's larvae fed with P. citri eggs. Female fertility ranged between 98 and 99% in relation to mealybug eggs consumed. In case of using second-instar mealybugs as a food, the shortest developmental time and longest female longevity was when predator's larvae fed on second-instars of P. citri . second-instar mealybugs significantly affected female fecundity with the highest fecundity was for those their larvae fed on second-instars P. citri and P. solenopsis . Female fertility ranged between 97 and 98% in relation to type of second-instar mealybugs that provided for predator's larvae. The success of any predator majorly depends on the nutritional quality of its prey. These information will be useful for the formulation of Integrated Pest Management (IPM) programs.","PeriodicalId":488603,"journal":{"name":"Journal of Plant Protection and Pathology (Print)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135646593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-03DOI: 10.21608/jppp.2023.235502.1177
S. Awadalla, T. Ata, Dina Fathy, Hager El-Shenawy
Population fluctuation of the total and living individuals of the white date palm scale insect, Parlatoria blanchardi was studied for two successive years, 2021 and 2022, in New Damietta district. The insect pest had six and seven peaks of abundance during the first and second years, respectively. The highest peaks of the total population occurred in the beginning of January, 2021 and Mid-November, 2022 and represented by 1520 and 1362 scales/100 leaflets, respectively. The highest peaks of living scales occurred in the beginning of December 2021 and Mid-November 2022 and represented by 778 and 968 scales/ 100 leaflets, respectively. The annual average number of total insect population was higher during the second year than the first year and represented by 686.1 ± 85.02 and 617.6 ± 114.42 scales/100 leaflets, respectively. Moreover, the annual average number of the living population was greater during the second year than the first year. The unknown mortality factors achieved the highest mortality in insect population during Winter season in the first year and during Autumn season during the second year. Aphytis spp. Contributed with the lowest performance in total population pest mortality during summer season, whereas both of Encarsia citrina and predators contributed less during Spring season of 2021 and Autumn season of 2022.
{"title":"Population of the White Date Palm Scale Insect, Parlatoria blanchardi and Mortality Factors Acting their Population at New Damietta District","authors":"S. Awadalla, T. Ata, Dina Fathy, Hager El-Shenawy","doi":"10.21608/jppp.2023.235502.1177","DOIUrl":"https://doi.org/10.21608/jppp.2023.235502.1177","url":null,"abstract":"Population fluctuation of the total and living individuals of the white date palm scale insect, Parlatoria blanchardi was studied for two successive years, 2021 and 2022, in New Damietta district. The insect pest had six and seven peaks of abundance during the first and second years, respectively. The highest peaks of the total population occurred in the beginning of January, 2021 and Mid-November, 2022 and represented by 1520 and 1362 scales/100 leaflets, respectively. The highest peaks of living scales occurred in the beginning of December 2021 and Mid-November 2022 and represented by 778 and 968 scales/ 100 leaflets, respectively. The annual average number of total insect population was higher during the second year than the first year and represented by 686.1 ± 85.02 and 617.6 ± 114.42 scales/100 leaflets, respectively. Moreover, the annual average number of the living population was greater during the second year than the first year. The unknown mortality factors achieved the highest mortality in insect population during Winter season in the first year and during Autumn season during the second year. Aphytis spp. Contributed with the lowest performance in total population pest mortality during summer season, whereas both of Encarsia citrina and predators contributed less during Spring season of 2021 and Autumn season of 2022.","PeriodicalId":488603,"journal":{"name":"Journal of Plant Protection and Pathology (Print)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135788607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-01DOI: 10.21608/jppp.2023.237783.1180
Victoria shenishen, I. Elhawary, A. Hendawey
The Egyptian clover, Trifolium alexandrim L. occupies about three million feddans (1,260,000 hectares) of winter cultivated acreage the Arab Republic of Egypt (ARE). Farther, it acts as the major fodder crop and a soil reclaiming agent. The Egyptian alfalfa weevil (EAW), Hypera brunnipennis (Boheman) (Coleptera: Curculionidae) is a damaging insect pest species to this important crop. Population fluctuations of both larvae and adults of EAW were monitored during 2019/2020 and 2020/2021 clover growing seasons at Sakha location (Kafr El-Sheikh) and Segeen El-Kom regions (Gharbia governorate). At each location, 3-4 peaks of the insect population densities were recorded annually. The parasitoids, emerging from EAW were identified, collected and their seasonal densities were recorded from the host adults. From the host adults, Microctonus sp (Hymenoptera: Braconidae) was recorded, while Bathyplectes curculionis (Hymenoptera: Ichneumonidae) emerged from the host larvae. Parasitism of H. brunnipennis adults ranged between 0.99 and 1.72%, while that of the host larvae ranged between 0.89 and 4.64%. The correlations between the number of host and number of parasitoid were highly significant positive (0.686-0.950) in case of adults and 0.739-0.949 in case of larvae. Two major predators were observed as related to larvae and adults of Hypera brunnipennis ; Chrysoperla carnea Stepheus and spiders. Also, highly significant positive correlations were found between the number of H. brunnipennis larvae and each of Ch. Carnea larvae (0.680-0.860) as well as spider complex (0.730-0.860).
{"title":"Parasitoids and Predators of Egyptian Alfalfa Weevil Hypera brunnipennis (Boheman) at Kafr El-Sheik and Gharbia Regions","authors":"Victoria shenishen, I. Elhawary, A. Hendawey","doi":"10.21608/jppp.2023.237783.1180","DOIUrl":"https://doi.org/10.21608/jppp.2023.237783.1180","url":null,"abstract":"The Egyptian clover, Trifolium alexandrim L. occupies about three million feddans (1,260,000 hectares) of winter cultivated acreage the Arab Republic of Egypt (ARE). Farther, it acts as the major fodder crop and a soil reclaiming agent. The Egyptian alfalfa weevil (EAW), Hypera brunnipennis (Boheman) (Coleptera: Curculionidae) is a damaging insect pest species to this important crop. Population fluctuations of both larvae and adults of EAW were monitored during 2019/2020 and 2020/2021 clover growing seasons at Sakha location (Kafr El-Sheikh) and Segeen El-Kom regions (Gharbia governorate). At each location, 3-4 peaks of the insect population densities were recorded annually. The parasitoids, emerging from EAW were identified, collected and their seasonal densities were recorded from the host adults. From the host adults, Microctonus sp (Hymenoptera: Braconidae) was recorded, while Bathyplectes curculionis (Hymenoptera: Ichneumonidae) emerged from the host larvae. Parasitism of H. brunnipennis adults ranged between 0.99 and 1.72%, while that of the host larvae ranged between 0.89 and 4.64%. The correlations between the number of host and number of parasitoid were highly significant positive (0.686-0.950) in case of adults and 0.739-0.949 in case of larvae. Two major predators were observed as related to larvae and adults of Hypera brunnipennis ; Chrysoperla carnea Stepheus and spiders. Also, highly significant positive correlations were found between the number of H. brunnipennis larvae and each of Ch. Carnea larvae (0.680-0.860) as well as spider complex (0.730-0.860).","PeriodicalId":488603,"journal":{"name":"Journal of Plant Protection and Pathology (Print)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136247427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-01DOI: 10.21608/jppp.2023.240676.1184
A. Saleh, S. Amer, Noha Lokma, M. Hendawy
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