茶黑毒蛾(Dasychira baibarana Mats-umura)在浙江、安徽、贵州、台湾等省均有发生。近年来,浙江北部为害严重,给夏秋茶的产量造成很大损失。茶黑毒蛾幼虫具有趋嫩为害的特点,所造成损失的部分就等于直接的经济损失。为了搞清该虫的为害性,我们于1986年进行了茶黑毒蛾幼虫食叶量的观测,为准确测定茶黑毒蛾幼虫的食叶量,采用了量叶面积和称重量两种方法。 Dasychira baibarana Mats-umura occurs in Zhejiang, Anhui, Guizhou and Taiwan provinces. In recent years, serious damage to the north of Zhejiang, summer tea yield a great loss. Tea black moth larvae tendend of the characteristics of damage, the loss caused by the equivalent of direct economic losses. In order to find out the harmfulness of the pest, we observed the larvae of larvae in 1986 in order to determine the amount of larvae eating larvae. The methods of measuring the area and weight of larvae were used.