How to control rice planthopper?

How to control rice planthopper? Please introduce the control methods of rice planthopper can refer to the following methods: first, reasonable close planting, improve field microclimate, improve rice disease resistance. Second, apply fertilizer rationally, control nitrogen fertilizer, increase phosphorus and potassium fertilizer, and skillfully apply topdressing to make rice grow early and develop quickly, increase plant hardness, avoid tenderness of rice planthopper and reduce harm. Third, scientific irrigation, planting seedlings in shallow water, tillering in an inch of water, sunbathing the field, booting in deep water, moist grouting, and through reasonable irrigation, promote the growth of rice plants and enhance their resistance. 4. All agrotechnical stations should strengthen field investigation, keep abreast of the occurrence dynamics of rice planthoppers in this area, and guide farmers to carry out prevention and control in time. 5. In the peak period of adult migration or from the peak of nymph hatching to the peak of occurrence of 3rd instar nymphs, that is, 500-800 nymphs per 100 clumps (middle and middle stage of rice growth). Sixth, prevention and control agents and methods of use. 1. 25% of the mu is sprayed with 25% Urode wettable powder 20ml, 25g, 60ml, 75kg. 2. 25% buprofezin wettable powder 40 ml 60 g water 60 ml 75 kg spray per mu. 3. Serious fields: 25% Youlade wettable powder 30ml + 80% dichlorvos EC 100ml (or 40.8% Lesbon EC 60ml) is sprayed with water 60ml 75kg per mu. 4. Matters needing attention: the amount of spraying should be sufficient, the spraying site should be sprayed to the base of rice as far as possible, and the field should keep 5ml 10cm shallow water layer when spraying. Click to get more rice planting techniques click to get more food crop planting techniques