Prevention and Control of Different Pests of Rice Planthoppers

Prevention and Control of Different Pests of Rice Planthoppers

For field plots containing 1000-2000 head worms, use 25% buprofezin (buprofezinone) wettable powder 45-50 g or 10% imidacloprid wettable in the lower nymph stage (below 3 years of age) per mu. Powder 15-20 grams evenly sprays 50 kg of water. This medicine can achieve the purpose of controlling and eliminating fly fleas through contact and systemic action (inhibition of young locust skin), and the duration can be up to 20 days or more.

For field plots with a total of 2000-5000 head hoppers, 50% of dichlorvos emulsifiable concentrate should be added at the same time as “Buprofen” or “Imidacloprid”. Concentration should be 400-500 times (concentration is too high.) Burning seedlings can quickly control the amount of insects within 2,000 heads.

For plots with more than 5,000 head worms, we must quickly organize the use of poisonous soil fumigation methods to prevent and control them. Otherwise, the rice can be topped and lodged in a short period of time. The method is: drain the field water, use 50% dichlorvos emulsifiable concentrate 250-300g and 25-30kg wet fine sandy soil per acre to mix well, stuffy stuffy stuff for 3~5 hours, spread evenly after dew dry, before 4pm At the end of the application, more than 90% of the insects in the field can be killed after 1 hour of spraying, and then the above spray method can be used for prevention and treatment.

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