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油茶毒蛾(又名油茶毛虫)毒蛾科,鳞翅目学名Euproctis Pseudoconspersa Sthand近几年在我县慈化公社危害猖獗,是我县油茶林中当前主要的害虫。其危害特点是以幼虫群集食叶,大发生时整株树叶吃光,如同火烧,导致油茶严重落果,严重影响产量。如果连续多年被害,树干枯死。该虫在我县一年发生三次,以第二、三代危害最烈。一九七六年仅在慈化公社发生面积就有一万五千余亩,给当年产量带来极大损失。1977年我们虽然对第一、二代幼虫进行了一次全面的生物防治,虫口密度有所下降,但发生面积仍在扩大。为了寻找新的有效防治途径,我们进行了性外激素诱杀试验,现将试验结果整理如下:
Euproctis moth (also known as Camellia) moth family, Lepidoptera scientific name Euproctis Pseudoconspersa Sthand in recent years in our county Coking Corporation rampant rampant, is my county Camellia wood in the current main pests. Its harm is characterized by the larvae cluster leaves, large leaves occur when the whole plant, as the fire, leading to severe fruit drop, severely affected the yield. If many years were killed, the trunk died. The worm occurred three times a year in our county, with the second and third generations of the hardest hit. In 1976, there were over 15,000 mu of land in the area only for the Cixi Commune, which caused a great loss to the output of the year. Although we carried out a thorough biological control on the first and second generation larvae in 1977, the population density of insects decreased but the area was still expanding. In order to find a new and effective way to prevent and control, we conducted a sex pheromone trapping test, the test results are summarized as follows: