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害虫再增猖獗可以分为三类:(1)靶标昆虫的再增猖獗;(2)兼治害虫的再猖獗;(3)次生性害虫的大发生。三者造成原因是一样的,都是由于天敌的自然控制能力的削弱。 再增猖獗的现象实际上在本世纪二十年代就有人注意到。Massee(1929)报道了用煤馏油作为休眠喷洒后,引起苹果红蜘蛛的大发生。早在1922年英国东南部用这种药剂之后,苹果红蜘蛛就逐年增加,因为煤馏油休眠喷洒并不能杀死红蜘蛛的卵,而对许多天敌却是致死的(包括瓢虫、捕食螨、花蝽等)。因此,春季孵化出来的红蜘蛛失去了自然控制而大发生。
Increasing pest rampant can be divided into three categories: (1) the re-emergence of target insects rampant; (2) pest repellent; (3) the occurrence of secondary pests. The three causes are the same, all due to the weakened nature of natural enemies. The rampant rampant phenomenon was actually noticed in the 1920s. Massee (1929) reported that the use of coal oil as a dormant spray, causing the occurrence of apple spider mite. As early as 1922 in the southeastern United Kingdom after using this agent, the apple spider mite increased year by year, because the coal-oil spilled dormant spray does not kill spider mite eggs, but for many natural enemies are dead (including ladybugs, predators mite , Stink bug, etc.). As a result, spider mites that hatch in spring lose their natural control and emerge.