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Journal of Plant Protection and Pathology
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Ghanim, A., El-Serafy, H., Abdelwahab, H., El-sayed, H. (2019). Population Fluctuation of Certain Insects Infesting Vegetable Crops and their Predators Caught by Using Light Traps and Effect of some Weather Factors on those Insects. Journal of Plant Protection and Pathology, 10(7), 363-367. doi: 10.21608/jppp.2019.53668
A. A. Ghanim; H. A. El-Serafy; H. A. Abdelwahab; Heba G. El-sayed. "Population Fluctuation of Certain Insects Infesting Vegetable Crops and their Predators Caught by Using Light Traps and Effect of some Weather Factors on those Insects". Journal of Plant Protection and Pathology, 10, 7, 2019, 363-367. doi: 10.21608/jppp.2019.53668
Ghanim, A., El-Serafy, H., Abdelwahab, H., El-sayed, H. (2019). 'Population Fluctuation of Certain Insects Infesting Vegetable Crops and their Predators Caught by Using Light Traps and Effect of some Weather Factors on those Insects', Journal of Plant Protection and Pathology, 10(7), pp. 363-367. doi: 10.21608/jppp.2019.53668
Ghanim, A., El-Serafy, H., Abdelwahab, H., El-sayed, H. Population Fluctuation of Certain Insects Infesting Vegetable Crops and their Predators Caught by Using Light Traps and Effect of some Weather Factors on those Insects. Journal of Plant Protection and Pathology, 2019; 10(7): 363-367. doi: 10.21608/jppp.2019.53668

Population Fluctuation of Certain Insects Infesting Vegetable Crops and their Predators Caught by Using Light Traps and Effect of some Weather Factors on those Insects

Article 4, Volume 10, Issue 7, July 2019, Page 363-367  XML PDF (647.83 K)
Document Type: Original Article
DOI: 10.21608/jppp.2019.53668
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Authors
A. A. Ghanim1; H. A. El-Serafy1; H. A. Abdelwahab2; Heba G. El-sayed2
1Economic Entomology Department, Faculty of Agriculture, Mansoura University, Egypt
2Plant Protection Research Institute, Agricultural Research Center, Dokki
Abstract
Investigation was carried out to survey the main insects attacking the vegetable crops caught by using light traps and the population fluctuations; flight activity of four nuctuids insect species and the effect of weather factors on the population fluctuations of these species during the two years (2016 and 2017) at Mansoura district. Results obtained revealed that there were nine species belonging to Family: Noctuidae (Order Lepidoptera), one species of the Family: Gelechiidae and one species of Family:Pyralidae. One species of Family: Gryllotalpidae (Order Orthoptera) were recorded. Meanwhile, one species of   Family: Pentatomidae (Order Heteroptera) and one species of Family: Scarabaeidae (Order: Coleoptera) were found. Data obtained showed that the population fluctuation of Spodoptera littoralis (Boisd.)  had seven peaks were found all the year round. The results cleared that Spodoptera exigua (Hubner) was recorded five peaks in vegetable crops. These peaks were occurred in the 3rd week of March, last week of April, 2nd week of June, 1st week of Aug. and 3rd week of September, during the first year of study, In the second years, the peaks were during the 1st week of Febr, 2nd week of May, last week of June, 3rd week of Aug. and 1st week of Oct. The population fluctuation of Agrotis ipsilon (Hufn.) revealed that this insect had six peaks in vegetable crops. The obtained data cleared that population fulctuation of Heliothes armigera Hbn This insect had four peaks in vegetable crops. These peaks were occurred in the 2nd week of May, 2nd week of June, 3rd week of July and 2nd week of Sept. during the first year of study. In the second year, the peaks were during the 3rd week of March, last week of June, 1st week of Aug. and 1st week of Sept. Results indicated that the values of correlation coefficient of the relationship between the average temperature, relative humidity and the population fluctuation of these four insect speciesduring the two seasons of study, assuted that the average temperature and relative humidity parameters exerted varied effect with a value ranged from slight to highly significant correlation during the two seasons of the investigation.
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