花生虫害的综合防治（Comprehensive prevention and cure of peanut pests）.docVIP

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花生虫害的综合防治（Comprehensive prevention and cure of peanut pests）.doc

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花生虫害的综合防治（Comprehensive prevention and cure of peanut pests） Comprehensive prevention and cure of peanut pests Prevention and sucking mouthparts pests The pests, such as aphids and spider mites, are the key point in the seedling stage of peanut. The following specific measures may be adopted: 1, protect and use natural enemies. There are many kinds of natural enemies of peanut aphid. The beetles, lacewings, syrphids, field 100 pier peanut aphid capacity of about 4, 1, 100: an aphid ~ 120, aphids can be controlled effectively. Rational arrangement of crops and planting flowers in wheat fields and peanut fields can increase the number of Ladybug and reduce the harm of aphids. In addition, in the peanut field around cowpea and nectar plants, is conducive to the protection of natural enemies grub hook scolioidea by hip. 2. Chemical control. Before the peanut flowering, when each pier reached 10 heads, or when the rate of peanut aphid reached 5% to 10%, timely spraying should be taken to prevent and control. Pesticides can be used with high efficiency and low toxicity, long duration, such as the use of imidacloprid, acetamiprid and abamectin, pyridaben aphids; control of mites, can also be sprayed bifenthrin EC, fenvalerate EC, pyrethroid pesticide, use of that reference manual. Two. Prevention and control of underground pests The underground pest is harmful, and the whole growth period of peanut should be paid attention to. 1. Chemical pesticide control. According to the regularity and life habit of harm to peanut grub, in mid June, while the water or moist soil, toxic soil with chlorpyrifos, prepared according to the instructions and Haier Miller, evenly applied to the peanut root at the soil surface, can completely control the spawning of beetles and harm of pod grubs, and at the same time for a variety of mesh wireworm, Pseudopodoces underground pest. 2, other methods of prevention and control. By trapping adult fresh branches. In the adult eclosion period, 60 cm lon