Simultaneous reduction in incidence of Bemisia tabaci (Hemiptera: Aleyrodidae) and Sylepta derogata (Lepidoptera: Pyralidae) using velvetleaf, Abutilon theophrasti as a trap crop

摘要: Trap cropping is a useful tool in sustainable pest management. crops usually target single species or genus of insect pests. In this study, we assessed the potential velvetleaf (Abutilon theophrasti) as trap crop for two distant species, Bemisia tabaci and Sylepta derogata Chinese cotton fields from 2006 to 2009. Under laboratory conditions, velvetleaf, known plant B. tabaci, was preferred over by S. oviposition, subsequent offspring had greater survival faster development on than cotton. Field-plot trials showed that population densities were 46–110 times cotton, respectively. Commercial field indicated density leaf damage 79–90 % 83–94 lower inter-planted with sprayed strips without them, respectively; whereas 21–51 those without. At >10 m strips, gradually increased. Velvetleaf an effective simultaneous management fields.