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一、预测预报 小麦红吸浆虫个体小,活动、危害隐蔽,不易引起人们的注意,为了减少防治的盲目性,要全面开展虫情调查,查清虫口密度和分布情况,做到心中有数,分类指导防治,对症下药。方法是:①网捕成虫。从早抽穗麦田始穗期开始,选不同类型田块进行调查,每1—2天1次,一般在下午5时左右,用捕虫网捕捉成虫,当平均10网次有成虫10—20头时,即已进入防治适期。②淘土检查虫蛹。在小麦孕穗始期,选代表性的麦田两块,连
First, the forecast forecast Wheat red smut individual small, activities, hidden dangers, not easy to attract people’s attention, in order to reduce the blindness of prevention and control, we should conduct a full investigation of insects, check the density and distribution of insect population, be aware of, classified guidance Prevention, the right medicine. Method is: ① net catch adult. Beginning early heading wheat field beginning of the beginning of the election of different types of plots for investigation, once every 1-2 days, usually around 5 pm, with insect net to capture adults, when the average 10 net adults 10-20 when , That is, have entered the appropriate period of prevention and treatment. ② Amoy earthworm check pupae. At the beginning of the booting stage of wheat, choose two representative wheat fields, even