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近日,在广东省茂名市电白林头镇大衙村程方海的荔枝园里,近四十荔枝种户、农药零售商在对他家即将上市的荔枝“评头论足”:卖相好、挂果多、几乎没有受到蒂蛀虫的为害。长期以来,防治蒂蛀虫是荔枝果园管理的关键环节之一,该虫昼伏夜出,白天多静伏于寄主树冠内的枝条上,很少发现在叶片上;世代重叠严重,防治起来比较困难。尤其对幼虫而言,孵化后直接进入果实内,一般农药对其效果甚微。因此,对蒂蛀虫的防治,要对成虫、幼虫、蛹进行兼治,控制虫口密度。
Recently, in Guangdong Province, Maoming City, Bolin Town, Dali village Cheng Fong Hoi Lai Fong Hoi Park, nearly 40 litchi seed households, pesticide retailers in his upcoming listing of lychees’ , Almost no damage by pedicel. For a long time, the control of pedicel insects is one of the key links in the management of litchi orchards. The insects are nocturnal and prone to storms. During the daytime, they are mostly resting on branches within the canopy of the host and are seldom found on the leaves. The generations overlap seriously and are more difficult to control . Especially for larvae, after hatching directly into the fruit, the general effect of pesticides is minimal. Therefore, the prevention and treatment of pedicel insects, adult, larvae, pupae should be treated at both, control population density.