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Swelam, N., sharaf Eldin, H., akaway, A., ahmed, A., Tawfik, O. (2023). THE TOXICOLOGICAL AND BIOLOGICAL EFFECTS OF SOME COMPOUNDS ON THE COTTON LEAFWORM, SPODOPTERA LITTORALIS (BOISD.) (LEPIDOPTERA: NOCTUIDAE). Menoufia Journal of Plant Protection, 8(8), 133-144. doi: 10.21608/mjapam.2023.222762.1021
NehalNehal Omaya Swelam; h. sharaf Eldin; ahmed akaway; ali ahmed; Osama Ahmed Atta Tawfik. "THE TOXICOLOGICAL AND BIOLOGICAL EFFECTS OF SOME COMPOUNDS ON THE COTTON LEAFWORM, SPODOPTERA LITTORALIS (BOISD.) (LEPIDOPTERA: NOCTUIDAE)". Menoufia Journal of Plant Protection, 8, 8, 2023, 133-144. doi: 10.21608/mjapam.2023.222762.1021
Swelam, N., sharaf Eldin, H., akaway, A., ahmed, A., Tawfik, O. (2023). 'THE TOXICOLOGICAL AND BIOLOGICAL EFFECTS OF SOME COMPOUNDS ON THE COTTON LEAFWORM, SPODOPTERA LITTORALIS (BOISD.) (LEPIDOPTERA: NOCTUIDAE)', Menoufia Journal of Plant Protection, 8(8), pp. 133-144. doi: 10.21608/mjapam.2023.222762.1021
Swelam, N., sharaf Eldin, H., akaway, A., ahmed, A., Tawfik, O. THE TOXICOLOGICAL AND BIOLOGICAL EFFECTS OF SOME COMPOUNDS ON THE COTTON LEAFWORM, SPODOPTERA LITTORALIS (BOISD.) (LEPIDOPTERA: NOCTUIDAE). Menoufia Journal of Plant Protection, 2023; 8(8): 133-144. doi: 10.21608/mjapam.2023.222762.1021

THE TOXICOLOGICAL AND BIOLOGICAL EFFECTS OF SOME COMPOUNDS ON THE COTTON LEAFWORM, SPODOPTERA LITTORALIS (BOISD.) (LEPIDOPTERA: NOCTUIDAE)

Article 1, Volume 8, Issue 8, September 2023, Page 133-144  XML PDF (607.51 K)
Document Type: Original Article
DOI: 10.21608/mjapam.2023.222762.1021
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Authors
NehalNehal Omaya Swelamorcid 1; h. sharaf Eldin2; ahmed akaway3; ali ahmed4; Osama Ahmed Atta Tawfik email 5
1Economic Entomology and Agricultural Zoology Department, Faculty of Agriculture, Menoufia University, Egypt
2Spodoptera littoralis , biology, Toxicology , insecitides
3Economic Entomology& Agricultural Zoology Dept. Fac. Agric. Menoufia Univ. ShebinElkom, Menuofia, Egypt.
4Plant Protection Research Institute, ARC, Egypt.
5Department of Economic Entemology and Agricultural Zoology - Faculty of Agriculture, Menoufia University - Egypt
Abstract
The present studies were conducted to evaluate toxic and biological effects of some formulation compounds; XenTari, Biovar, NeemAzal, (biocids) and Jojoba oil, Orange oil (oils)against cotton leafworm, Spodoptera littoralis (Boisd.). Results clear that all compounds had toxic effect on the 2ndinstar larvae of S. littoralis. Increasing the concentration of compounds and days post-treatment caused increase in larval mortality percentage. Jojoba oil had the highest mortality percentage (33, 42, 46, 47and 50%) and (41, 49, 53, 45 and 57%) after 1, 3, 5, 7 and 10 days from treatment by recommended and double recommended concentration as compared with 5% for control after 10 days. While the lowest mortality percentages were (13, 16, 18, 20 and 21%) and (19, 25, 28, 31 and 32%) recorded with Orange oil, respectively. 2nd tested instar larvae were affected more than 4nd instar larvae. These compounds showed the different effects on some aspects of S. littoralis treated as 2nd and 4th instar larvae and caused decrease in larval & pupal mortality percentage, larval & pupal weight, pupation & adult emergency percentage, deposited eggs/ female and hatchability percentages as compared with control. While, Dursban (O.P. Insecticide (showed the highest effects on these biological aspects as compared with previous all compounds.
Keywords
Spodoptera littoralis; biology; Toxicology; insecitides
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