[关键词]
[摘要]
在河西地区调查了玉米田不同防治措施对棉铃虫蛹、成虫、着卵量和为害率等的防治效果。结果表明,综合防治措施对棉铃虫的控制效果优于单一使用药剂的效果。对棉铃虫卵量控制效果较优的防治措施为辛硫磷+Bt+性诱剂、辛硫磷+Bt+杀虫灯;对幼虫量控制效果较优的防治措施为辛硫磷+Bt+杀虫灯、辛硫磷+Bt+食诱剂;对被害株率控制效果较优的防治措施为辛硫磷+Bt+性诱剂和辛硫磷+Bt+杀虫灯。4种综合防治措施对百株虫量和被害株率的防治效果不同,但并无显著性差异。且防治玉米田一代棉铃虫时应针对棉铃虫蛹、成虫、卵和幼虫综合采取多种防治措施,并进行持续性防治。
[Key word]
[Abstract]
The control effects of different control measures on cotton bollworm pupae, adults, egg number and damage rate were investigated in Hexi area. The results showed that the control effect of integrated measures was better than that of single application of agents, and the better efficient control strategies to eggs were phoxim + Bt + insect pheromone strategy and phoxim + Bt + lamp trap strategy; the better efficient control strategies to worms were phoxim + Bt + lamp trap strategy and phoxim + Bt + food attractant strategy; the better efficient control strategies to damage were phoxim + Bt + insect pheromone strategy and phoxim + Bt + lamp trap strategy. These four integrated strategies had varied control efficiencies on worm management and damage management; however, the difference was not significant. In addition, the first generation of cotton bollworm in corn field should be continuously treated with various control measures for pupa, adult, egg and larva management.
[中图分类号]
S513;S433.4
[基金项目]
甘肃省科技重大专项(1062NKDF021),甘肃省科技支撑计划项目(1604NKCA063),兰州市科技计划项目(2016-3-95),甘肃省农业科学院农业科技创新专项(2017GAAS23)。