石梓金花虫农药防治试验

• 作 者: 刘元福
• 出 处: 热带林业科技
• 发表日期: 1974年01期
• 关键词: 金花虫 石梓 海南石梓 尖峰岭 药剂防治 海南岛 农药防治 虫口数量 害虫 乳剂

石梓金花虫Craspedonta leayana insulana(Gressitt)在海南岛尖峰岭林区,每年发生5—6代,幼虫和成虫均取食海南石梓树叶。其主要为害时期,在4月下旬至6月底,而其余时间,虫口数量很低。从药剂防治的角度来看,只要抓住4月底、5月初这个关键时刻,进行及时的施药,就可一举歼灭早期发生的害虫,杜绝后患,效果显著。关于石梓金花虫的农药防治试验,1964—1965年,我们在室内和田间先后共做过7次,兹整理报导如下:

Craspedonta leayana insulana (Gressitt) occurs annually in Jianfengling Forest District, Hainan Island, with 5-6 generations occurring annually. Both larvae and adults feed on the leaves of Hainan Shizi. The main damage period, from late April to the end of June, while the rest of the time, the population is very low. From the perspective of chemical control, as long as the end of April and early May this crucial moment, timely application of pesticides, we can annihilate the early occurrence of pests, eliminate future cases, the effect is significant. On the stone pest insects pest control experiments, 1964-1965 years, we have done a total of 7 indoors and in the field, it is reported as follows: