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Underground pest control five methods
One, poisonous bait seduce 667 square meters with crushed sauteed rice cake or rice bran 5 kg, plus 90% of crystal trichlorfon 50 grams and a small amount of water, or mix with 50% of methamidophos emulsion 60 grams, Spend the evening next to the seedlings to kill. Second, venom poured on the soil pests of high density of the field, can be used to control the method of venom pouring. When winter planting fruit tree seedling growth period or seedling period of spring planting fruit tree is affected by earthworms, ground tigers, golden worms, etc., 50% phoxim emulsion 2000 times solution, or 80% dichlorvos emulsion 1200 to 1500 times solution can be used. The cultivator poured to kill near the roots. 3. When the poisonous sand locust encounters seedlings seedlings or drilled seedlings and finds harm from small ground tigers, it can use fine sand to mix in 50% methamidophos emulsion with a dose of 0.1%. Poisonous sand can be used for licking or looping, and the control effect can reach 90%. Fourth, poisonous grass (vegetable) trapping and killing of young tiger larvae can use this method. Fresh grass (vegetables) are first chopped and then sprayed with 90% trichlorfon or 50% methamidophos 500 times, 10 to 15 kg of poisonous grass (vegetables) per 667 square meters, and placed in small heaps in the evening. field. In order to reduce evaporation, poisonous grass (vegetables) shall be covered with hay, and water shall be properly preserved in the morning and evening. 5. Spread 50% of phoxim 300 grams per 667 square meters of poisonous soil, mix 25-30 kilograms of dry fine soil, and spread it evenly in the nursery field in mid-July and late July.