磷化铝毒丸防治油松大小蠹药效试验

１９９９ 年，油松大小蠹（学名待定）在山西省许多地区的油松林内暴发成灾，对３０年生或胸径１２ ｃｍ 以上的油松危害极大，造成了严重损失。该虫为害油松系首次发现。其成虫大多在距根基部１ ｍ 以内的树干部位侵入蛀食韧皮部，雌虫产卵量一般为１００ 多粒。幼虫继续取食韧皮部，常造成油松死亡。该虫营隐蔽生活，一般的化学防治方法效果很差。采用钻孔塞入磷化铝毒丸薰杀法，成虫死亡率可达９６．４％ ，幼虫死亡率可达９７．７％ 。

Experiment of Effect of Aluminium Phosphide Pill on Chinese Pine Beetle

In 1999,Chinese pine beetle (provisional name)broke out in Chinese pine forests,and damaged the 30 years old of pine trees or those with and over 12cn in d.b.h,causing enormous losses.It's the first time to find this pest damages Chinese pine.The adults bore tree stem at the base within 1 m from ground and damae the bast.The female insects usually oviposit over 100.The larval also damage the bast,causing the pine's death.The pest lives in concealment,so common chemical control has little effects.Bore a hole and insert aluminium phosphide pill to fumigate and kill the pest,the death rate of adults being 96.4%,and 97.7 to the larval.