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豆黄蓟马(ThripsnigropilosusUzel)在黑龙江省密山地区每年发生5～6代,以成虫越冬。第一及最末一代世代平均历期24d。中间各世代平均历期16.7d,雌成虫平均寿命17.6d。该虫主要以成虫和1～2龄若虫为害。叶背面虫量多于叶表面虫量,豆株上部幼嫩叶片多于中下部叶片。植株各器官上的虫量以叶上最多,次为嫩荚,茎及花器上很少。雌成虫可行孤雌生殖也可行两性生殖。每年的危害高峰在6月下旬到7月上旬。防治指标定为2～3片复叶时20头/株。药剂防治以具有内吸作用的乐果效果最佳。
Thrips nigropilosus Uzel occurs 5 to 6 generations per year in Mishan area, Heilongjiang Province, and overwinters as adults. The average age of the first and last generation is 24d. The average duration of the middle of each generation 16.7d, female adult average life expectancy 17.6d. The insects mainly to adults and 1 to 2 instar nymphs damage. The quantity of insect on the back of the leaf is more than that of the surface of the leaf. The young leaves on the upper part of the bean plant are more than the middle and lower leaves. The amount of insects on the organs of the leaves to the most, second for the tender pods, stems and flowers on the few. Female adult feasible parthenogenesis is also feasible bisexual reproduction. The peak of the annual hazard is from late June to early July. Control indicators set at 2 to 3 when the compound leaves 20 / plant. Pharmacy to control the absorption of dimethoate with the best effect.