author(s)
Manjunatha DK, Sharanabasappa, Sowmya E and Maruthi MS

abstract
Chrysoperla carnea (Steph.) is a major, cosmopolitan predator of some whitefly and Aphid. It is now commonly reared in laboratory and used extensively all over the country and has significant potential for commercialization and use against a variety of crop pests in combination with other insect pest management tactics. The data in this indicated that C. carnea appeared in the field of cotton crop just after the resurgence of insect pests. B. tabaci appeared in very early stage of the crop of cotton. The result showed that the soft bodied insect pests such as B. tabaci, and A. gossypii appeared at various growing stages of cotton crop in summer. It is reported that C. carnea consumed more aphid in all its stage than the white fly. The first instar of C. carnea consumed 4.3, 3.37, 6.35 and 6.14 number of B. tabaci. Whereas 14.44, 23.44, 28.16 and 6.44 number of A. gossypii. The third instar of C. carnea had consumed more third instar of aphid of about 67.14. The consumption goes on increasing the instar stage of C. carnea, but decreased after third instar stage of the host insects.