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长绿飞虱Saccharosydne proceruss(Matsumura)是为害茭白的一种主要害虫,在上海一年发生四代,世代重叠,主要以第二代成虫、若虫在7、8月份为害栽培茭白,以秋菱尤重。它以三级黄斑期的滞育卵在茭白残株组织内越冬,滞育卵表面被有一薄层蜡白色六角形的蜡质花纹。滞育期长达5个月左右。试验观察表明长绿飞虱是仅为害茭白的单食性害虫。成、若虫群集茭白嫩叶取食为害。成虫有趋光性。雌虫产卵量以饲料较嫩的越冬代、第一代高于第二、第三代,达300粒以上。该虫发育的最适气温为24—28℃。平均气温超过30℃、最高气温超过35℃,发育繁殖受影响。先寄生后捕食长绿飞虱卵的无后缘姬小蜂科了Tetrastichidae的一种蜂(待定名)为天敌优势种,对越冬代卵的杀伤率为54.4～77.4％,防治试验明确了乙酰甲胺磷为有效的药剂;压前控后是有效的防治对策。
Siberian planthopper Saccharosydne proceruss (Matsumura) is one of the major pests that cause damage to whitefly. Four generations occur each year in Shanghai, which overlap mainly with the second generation adults. The nymphs are cultivated in July and August, weight. It is a three-stage diapause diapause eggs in the white stump tissue winter, diapause egg surface is a thin layer of wax white hexagonal wax pattern. Diapause up to 5 months or so. Test observation shows that the planthopper is a mere pest infestation. Into, nymphs cluster white young leaves feeding damage. Adults have phototaxis. Female fecundity to feed more tender winter generation, the first generation is higher than the second and third generations, up to 300 or more. The optimum temperature for the development of the worm is 24-28 ℃. The average temperature exceeds 30 ℃, the maximum temperature exceeds 35 ℃, the development of breeding affected. Pre-parasitization prey on the non-trailing edge of the Tetraoptoetis eggs Tetrastichidae a bee (to be named) is the dominant species of natural enemies, the killing rate of overwintering egg laying was 54.4 ~ 77.4%, prevention and control tests clear acetyl Methamidophos as an effective agent; pre-press control is an effective control measures.