Control method of corn double spotted leaf gall spider
Two-spotted leaf gall spiders use adult corn as the main pest to attack leaves, tassels, and ears. They only eat the leaf, leaving only the epidermis. The damaged corn leaves show large patches of transparent white spots, severely affecting photosynthesis; feeding filaments, tassels, and ears. Affects corn pollination and fruition. Control methods: 1. Agricultural control. Remove weeds, reduce the spring transition host, reduce the population of the double-spotted spider mite and mitigate the damage. 2. Physical control. In the early spring, they manually sweep the nets and kill on the host of Tanabe. 3, chemical control. When the amount of production in the field is large, the use of imidacloprid, endosulfan, and other pharmaceutical sprays is used to prevent and control insects in the early morning.
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