绿得宝防治乌岩岭保护区柳杉毛虫药效试验的初步研究

近些年来，柳杉毛虫大面积扩散危害，对乌岩岭自然保护区的柳杉等植物产生了严重的影响。为了控制这一现状，找出缓解问题的办法，特开展对柳杉毛虫的生物防治试验。本次试验中，对绿得宝生物药剂防治柳杉毛虫（Dendrolimus houi Lajonquiere）的效果进行了不同配比、连续二年使用与否的对比试验。结果表明：林得宝18倍粉的防治效果好于16、20、22倍粉防治的效果；连续两年使用林得宝防治效果比仅用一年更佳。但是，由于时间的限制，我们只进行了连续2年的跟踪试验，关于绿得宝生物药剂的药效问题，还需进一步深入研究。

The primary study on the effect of Bacillus thruringlensis-Abamectin in preventing and curing the Wuyanlin Dendrolimus houi Lajonquiere

In recent years , Dendrolimus houi Lajonquiere have brought serious influence on plants such as Cryptomeria fortunei Hooibrenk in Wuyanlin National Natural Resery. In order to control this actuality and find out methods to solve this problem, we develop biological test to Dendrolimus houi Lajonquiere particularly . The results showed the following: (1) After doing some comparative experiments, it turns out that the effect of the power of the proportion of 1:18 is better than that of 1:16，1:20，1:22 ；and (2) the two years’ continuing use of the power is better than that of just one year. Due to the restriction of time , we’ve just developed two years’ continuing use in biological test .In order to reveal the mechanisms underlying the effects variation of LvDebao, further study is necessary.