12 Sep Insects and Pests Management in Cotton Crop
कपास फसल में कीट और पतंगो का प्रबंधन Cotton, the commercial crop is the backbone of the textile industry as it employs vast majority of population directly or indirectly and earns the foreign exchange too.The insect pests spectrum of cotton is quite complex and as many as 1326 species of insect pests have been listed on this crop throughout the world. However, main losses in cotton production are due to its susceptibility to about 162 species of insect pests. Among these, the bollworms viz., American bollworm, Helicoverpa armigera, (Hubner), spotted bollworm, Earias vittella (Fabricius), spiny bollworm, Earias insulana (Biosdual), pink bollworm, Pectinophora gossypiella (Saunders), pose greater threat to cotton production.Besides these, a complex of sucking pests viz., green leaf hopper, Amrasca biguttula biguttula (Ishida), thrips, Thrips tabaci (Linnman), aphids, Aphis gossypii (Glover), whitefly, Bemisia tabaci (Gennadius), red cotton bug, Dysdercus koenigii (Fabricius) and dusky cotton bug, Oxycaranu shayalinipennis (Costa) occupy major pest status and contribute to lower yields. 1. Fruit and Boll Feeders of Cotton crop American boll worm (Helicoverpa armigera) Identification & Monitoring: This is a major pest and active from July-October and February-April. The adult moth is stout, yellowish brown with a dark speck area on the forewings, which have grayish wavy lines and a black kidney shaped mark whereas the hind wings are whitish...