الفهرس 
Response of CottonLeafworm(Spodoptera Littoralis Boisd)Only 14 pages are availabe for public view
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Abstract
crop for some countries, also for farmers.The productive quantity is determined according to yield quantity per produce and its fiber characterizes. Cotton gain much luck from research and there for reach to the maximum mean for the feddan yield and for develop the fiber characterizes by different breeding as well as agriculture treatments or uses pesticides and fertilizers. Cotton is attacked by many insects’ species such as the cotton leafworm Spodoptera littoralis, the pink bollworm Pectionophora gossyipella, the spiny bollworm Earias insulana, the whitefly, Bemisia tabaci and cotton aphids Aphis gossypii. These pests are the most destructive for cotton in Egypt and it causes big losses in the quantity of cotton crop and it’s quantitive. Traditional pesticides are used since along period in the control of these pests.The use of insecticides leads to the appearance of dangerous problems. To avoid the high using of traditional chemical pesticides and to increase the crop, this study aimed to investigated some new approaches to control certain cotton pests in order to select the best effective methods for controlling these pests.