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茶黑毒蛾(Dasychira baibarana Matsumura)是茶树主要害虫之一,初孵幼虫群集于茶丛中、下部老叶背面取食叶肉,2龄后开始分散并迁至茶蓬嫩叶背面,将叶片食成缺刻或孔洞。幼虫具假死性,取食多在黄昏至清晨,中午常移至丛间或落叶下.黄昏后再返回树上。因此,幼虫发生初期难以被察觉,容易造成为害损失。该虫一年发生4代,第一代幼虫发生于春茶期间,对春茶产量影响较大。为了提高对第一代茶黑毒蛾发生期测报的准确性,本文对浙江省临安县1978～1988年第一代茶黑毒蛾的发生期与气象资料进行了预报要素分级多元回归分析,并对近两年进行试报。
Dasychira baibarana Matsumura is one of the major pests of tea tree. The newly hatched larvae are clustered in the tea bunch. The lower part of the old leaves are fed on the back of the leaves. After the 2nd instar, Dasychira baibarana Matsumura begins to disperse and move to the back of the tea leaves, Nick or hole. Larvae have pseudophagocytic, feeding more in the evening to early morning, noon often move to between the clumps or leaves. Back to the trees after dusk. Therefore, the early larvae difficult to be detected, likely to cause damage damage. The worm occurs four generations a year, the first generation of larvae occurred during the spring tea, spring tea yield greater impact. In order to improve the accuracy of the first-generation black-spotted moth, the paper analyzed the occurrence and meteorological data of the first generation black-smoked moth in Lin’an County, Zhejiang Province from 1978 to 1988 using multiple-factor regression analysis. Two years trial report.