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我场红花留种田的鲜草产量很高,但往往花多结荚少,收种产量很低。根据田间调查,主要是蓟马、潜叶蝇,蚜虫三种害虫为害结果。蓟马吸食花汁,潜叶蝇幼虫专吃叶肉,蚜虫刺吸茎叶汁液。三虫齐发,使红花落花脱叶,严重影响结荚及种子产量。三种害虫的发生时期与为害情况如下。蓟马:蓟马是红花花期一大害虫,成虫有翅,若虫无翅,体小色黑,行动活泼,成虫和若虫都钻在花朵内吸食汁液,也能为害顶芽。成虫在3月上旬紫云英现蕾期初见,当第一档花朵开
My field safflower to stay farming fresh grass yield is high, but often spend more pods less, yield is very low. According to field surveys, mainly the thrips, leaf miner, aphids three pests damage results. Thrips take flower juice, leaf miner larvae specifically eat mesophyll, aphid thorn sucking stem juice. Tri-bug together, so that red flowers off the leaves, a serious impact on pod and seed yield. The occurrence of the three pests and the damage as follows. Thrips: Thrips is a large red flower flowering pests, adult winged, nymph wingless, small body black, lively action, adults and nymphs are drowning in the flowers to drink juice, but also damage the terminal bud. Adult early in March, early budding period, when the first stall of flowers open