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稻赤斑黑沫蝉(Callitetix,versicolorFabricius)近年来在我县危害面积逐年增加。1984年只有两个乡发生15亩,1987年发展到10个乡3100多亩。受害的稻田一般减产20％左右,严重的减产60％以上。以卵在泥缝中越冬,翌年5月上、中旬开始孵化。若虫在泥缝中吸食杂草、豆、桑等植物的根汁。初孵若虫腿部分泌白色胶质泡沫,各龄若虫及成虫仍藏于泡沫内2—3小时,才飞入稻田危害。成虫主要危害水稻,其次危害玉米、高粱茎叶吸取汁液,水稻剑叶受害最重,
Rice red spot cicada (Callitetix, versicolorFabricius) in recent years in our county hazardous area increased year by year. In 1984, only two townships occurred in 15 acres. In 1987, they developed to 31 townships of 10 townships. Damage to the paddy fields generally cut about 20%, a serious cut 60% or more. Egg in the mud crevice winter, the following year in May, mid hatch. Nymphs in the mud sew smoking weeds, beans, mulberry and other plant root juice. The newly hatched nymphs can excrete white gummy foam on their legs, nymphs and adults at various ages are still hidden in the foam for 2-3 hours before they fly into the paddy fields. Adults mainly endanger rice, followed by endangering corn, sorghum stems and leaves to absorb juice, rice flag leaves the most victims,