樟颈曼盲蝽发生情况初步调查

A preliminary investigation on Mansoniella cinnamomi

樟颈曼盲蝽是一种为害香樟的园林新害虫。2010年3月,对上海东郊宾馆内香樟上樟颈曼盲蝽的发生情况进行调查。在馆内由樟颈曼盲蝽引起的香樟株受害率为100%,受害后严重落叶的植株占11%。樟颈曼盲蝽导致香樟落叶的位置主要集中在春梢上,这一现象在严重落叶的植株上非常明显。樟颈曼盲蝽越冬卵多产于生长势旺盛的植株的秋梢叶柄上。

An investigation of Mansoniella cinnamomi was carried out in Shanghai Eastern Suburb Hotel in March 2010. The percentage of damaged plants of M. cinnamomi was 100%, and the rate of abnormal leaf-falling plants was 11%. The location of leaf-falling caused by M. cinnamomi focused on the spring shoot. This phenom- enon was remarkable on abnormal leaf-falling plants. The over-wintering eggs were laid in the leafstalks of autumn shoots of the vigorous plants.