The effects of a new type of nonsteroidal ecdysteroid agonist on cuticle formation in larvae of the cotton bollworm( Helicoverpa armigera)
DU Yu-Zhe 1, GUO Shi-Yi 1, WANG Xiu-Ling 1, LIU An-Xi 1, WANG Qing-Min 2, HUANG Run-Qiu 2
. 2002, (6): 748 -752 .