摘要
在设计出性信息素加农药诱杀器后，以60、135、240、480个／km2诱杀器田间处理，看出以135个／km2诱杀器处理即有明显的防治效果。经在不同的虫口密度果园试验，以诱蛾量下降率、为害率和雌蛾交配率3项指标考察，该诱杀器1次挂出，在田间有效期达70～80天，取得了较理想防治效果。
The attracticide ability of the trap was tested at the densities of 60, 135, 240 and 480 trap / km2 after the frustum trap was designed. lt was shown that under low density of the population of Grapholitha molesta Busck, the trap at the density of 135 trap / km2 appeared aperently ability to contfol the pest. The traps maintained effective in about 70-80 days at orchard when they were tested under different orchards, by the survey of the three criterla: the declining rate of moth nummber in monitoring traps, the damage rate and the ratc of the mated females. The result cf controlling the pest was reasonable.
出处
《昆虫知识》
CSCD
1998年第5期280-282,共3页
Entomological Knowledge
