In the period of nymph stage and ecdysis peak, the control effects was better but it need highly professional technique and not suitable for guiding farmer to control the midges.
在吸浆虫蛹
、羽化高
虽能
得较好
效果，但需要专业技术人员掌握发育进度，不适合指导群群；
）蜕皮In the period of nymph stage and ecdysis peak, the control effects was better but it need highly professional technique and not suitable for guiding farmer to control the midges.
在吸浆虫蛹、羽化高虽能得较好效果，但需要专业技术人员掌握发育进度，不适合指导群群；
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