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.
在吸浆虫蛹期、羽化高峰期防治虽能
得较好的防治效果，但需要专业技术人员掌握发育进度，不适合指导群防群治；
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.
在吸浆虫蛹期、羽化高峰期防治虽能得较好的防治效果，但需要专业技术人员掌握发育进度，不适合指导群防群治；
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