Types Of Integrated Pest Management Programs Against Cotton

1198 Words Sep 15th, 2016 5 Pages
The spiny bollworm, E. insulana and the pink bollworm, P. gossypiella are the most serious pest’s infested cotton in Egypt. The reduction in cotton yield was mostly related to the
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late season infestation with both species and the economic yields are almost impossible to achieve without their chemical control. In Egypt, Khidr et al. (1996) tested the efficacy of the pyrethroids, cypermethrin, cis-cyfluthrin, S-fenvalerate, fenpropathrin and cyhalothrin against
P. gossypiella and E. insulana. They stated that, all insecticides gave a high degree of control against cotton bollworms and the treatment increased the yield of cotton significantly over the control, with s-fenvalerate being the best treatment. Aref (1997) evaluated the efficiency of integrated pest management programs against cotton bollworms under field conditions. The author stated that, dursban was more effective against bollworms than kindo or larvainand no clear correlations were found between moth catches and flower infestation. Sharaf (2003) at
El-Mansoura, evaluated the field efficiency of insecticides against P. gossypiella and E. insulana infesting cotton plants. The author tested three chemical insecticides groups, four pyrethroids, two organophosphates and one carbamate. Tested pyrethroids were the most effective which induced the highest percentage of reduction in bollworms larvae population, followed by carbamate and organophosphorous insecticides. The sequence of dursban, kendo…
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