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花木的害虫种类繁多,大体可分为食叶害虫、刺吸害虫及螨类、枝干害虫和地下害虫等4类。 (1)食叶害虫。这方面有刺蛾、毒蛾、夜蛾、舟蛾、卷叶蛾、枯叶蛾、尺蛾、天蛾、凤蝶、粉蝶等幼虫及金龟子、金花虫、叶蜂等。这类害虫用咀嚼式口器取食,有的能把花木叶片食成缺刻,咬食花蕾使之残缺不全,或啃食叶肉仅留叶脉,甚至把叶全部吃光,有的卷叶危害等等。防治方法:①消灭越冬虫茧;②利用成虫的趋光性,可设黑光灯诱杀;③喷洒90%敌百虫或50%辛硫磷1000～1500倍液。
A wide range of pests of flowers and trees, can be divided into leafy pests, sucking pests and mites, stem pests and underground pests and other 4 categories. (1) leafy insect. In this area, there are larvae, poisonous moths, helminths, sparrow moths, leaf roller moths, dead leaf moths, moths, moths, swallowtail butterflies and other larvae and beetles. Such pests eat with the chewing mouthparts, and some can make the flowers and leaves into a notch, bite the flower buds so incomplete, or eating leaves leave only veins, and even the leaves all eat light, and some curly leaf damage, etc. Wait. Prevention and treatment methods: ① eliminate overwintering cocoon; ② the use of adult phototaxis, can be set black light trap; ③ spray 90% trichlorfon or 50% phoxim 1000 to 1500 times.