Mahmud Abdimuratovich Muminov, Liyue Guo, Yanjie Song, Xian Gu, Xiaotian Liang, Caihong Li, Jianshe Zhao, Gaoming Jiang, Jie Meng, Guanglei Wu, Da Cheng, Lijun Li
Nowadays, physical methods such as insect-trapping to control pests are being paid more and more attentions. In order to make clear how to combine pesticides with insect-trapping lamp reasonably and how much pesticide amount can be cut down, five treatments: (1) CK, only used pesticides; (2) LM, only used insect-trapping lamp; (3) LM1, insect-trapping lamp + one time pesticides (4) LM2, insect-trapping lamp + two times pesticides; (5) LM3, insect-trapping lamp + three times pesticides were arranged in a winter wheat -summer maize rotation system of Eastern China.
The results showed that reducing pesticides by 25-35%, insect-trapping lamp could well control the insect population and the yields were not decreased however increased, in which pesticides were applied only at 2 days before winter wheat planting, winter wheat flowering and summer maize big flared stage, respectively. Cutting 35-65% pesticides had no adverse effect on crop yields, however could reduce the cost for pest control and get the highest economic benefit. Using none pesticides in the insect-trapping lamp control area, the annual yields still reached more than 15 t·hm-2.
Pesticides if used timely and at appropriate stage could be largely reduced with the help of insect-trapping lamp.