棉蚜是棉花生产的大敌,其主要越冬场所是以卵在石榴树上越冬,过去虽然在产卵前和孵化后喷药防治,但不彻底,防效仅达70—80%,而且因易落花落果,增加了喷药防治的难度,故经济社会效益差。1994年春,我们采用了磷化铝熏杀的方法,取得了很好的效果。 Cotton aphid is the enemy of cotton production, the main winter place is the egg over winter in the pomegranate tree, although in the past before spawning and hatching after spraying prevention, but not complete, the anti-effect of only 70-80%, and because of Easy to fall and fall, increasing the difficulty of spraying prevention and control, it is poor economic and social benefits. In the spring of 1994, we adopted the method of smoked aluminum phosphide and achieved very good results.