SURVEY OF SOME PESTS ON ONION INFESTING AND CONTROL OF THRIPS TABACI AT SHARKIA GOVERNORATE , EGYPT
DOI:
https://doi.org/10.48047/zhvw1684Keywords:
: onion , survey Thrips tabaci , Aphisgossypii and Maggot ,mangment Thrips tabaci .Abstract
Onion, Allium cepa L. family (Alliaceae) is very important crop in Egypt and all over the world. The present work was conducted during two successive seasons in the period from [2020/2021and 2021/2022] in (Fakous, Abou-kabeer and Abou- Hammad district),Sharkia Governorate, Egypt , to survey of (Thrips tabaci, Aphisgossypii and Maggot) insects infesting onion crop.
To assesse the efficacy of the tested pesticides against Thrips tabaci under field conditions data showed that Chlorpyrifos was the most effective followed by Methoxyfenozide, pymetrozine 20% +thiamethoxam15% and Imidacloprid. The reduction percentage after 1 day were 65.8 to Chlorpyrifos, 63.9, 62.5 and 61.5 to Methoxyfenozide, pymetrozine 20% +thiamethoxam15% and Imidacloprid but after 3 days were 79.3 , 76.9, 75.7 and 74.2 for the tested insecticides (Chlorpyrifos, Methoxyfenozide, pymetrozine 20%+thiamethoxam15% and Imidacloprid), respectively . After 7 days 88.6, 86.4, 84.9 and 82.4 for (Chlorpyrifos, Methoxyfenozide , pymetrozine 20% +thiamethoxam15% and Imidacloprid ), respectively .but after 10 days. The residual effect of the tested insecticides were 79.1, 77.12 , 75.82 and 73.43 for the previous tested insecticides (Chlorpyrifos, Methoxyfenozide, pymetrozine 20% +thiamethoxam15% and Imidacloprid , respectively.
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