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龙眼顶芽瘿螨(Eriophyes dimocapi Kuang)又称龙眼瘿螨,是龙眼的一种新害螨。为探明此害螨在广西南宁一带的发生为害情况及其为害是否导致龙眼植株出现鬼帚症状等问题,作者从1996年6月开始进行调查研究。 结果表明:该螨在南宁市全年均可发生,其中1～3月和7～8月为害稍轻,5～6月和10～11月为害较普遍,种群数量较大。龙眼鬼帚病株的病梢上,顶芽有螨芽率平均达75.28％～80.56％,健株上的顶芽有螨芽率为41.81％～44.58％。龙眼健株上的未萌动顶芽有螨芽率平均为67.50％～87.92％,巳
Eriophyes dimocapi Kuang, also known as longan scabies, is a new pest of longan. In order to find out the occurrence of this pest mite in the area of Nanning, Guangxi and whether its damage caused the symptoms of ghost broom in longan plants, the author started the investigation in June 1996. The results showed that the mite could occur all the year in Nanning, among which the damage was slightly lighter in January ~ March and July ~ August, while the damage was more common in May ~ June and from October to November, and the population was larger. Longan ghost broom disease on the tip, the top bud mite bud rate of an average of 75.28% to 80.56%, the top bud bud mite bud rate of 41.81% ~ 44.58%. Longan no plant on the top of the sprouting bud mite rate averaged 67.50% ~ 87.92%, had