Ascarid locusts harm the backs and tender stems of many vegetables, and its fertility is very strong. Once it occurs, it is very difficult for general pesticides to completely eradicate. Therefore, it is necessary to clean up the fields, use insect nets, yellow traps, and prevent and cure pesticides to go hand in hand. Yellow plate seizure: generally every 30 to 50 square meters, the price is cheap, the effect is good; chemical control: with 25% of the Aketai water scattered particles 5000 times liquid or 10% imidacloprid wettable powder 1500 times liquid 6~7 Spray once a day, 2 or 3 times in a row.
è¼è›„ Use poison baits to control. The bait (grain, wheat bran, bean cake, cottonseed cake or corn crumb) 5 kg saute, and then use 90% trichlorfon crystal 30 times liquid 0.15 kilograms mix, mix tide for degree. Apply 1.5-2 kg per acre and spread it in the evening.
Root-knot nematode disease nursery beds 14 to 21 days before sowing, the drip mixture was applied to the soil 15 to 24 cm underground, covered with plastic film on the ground, and sealed for 1 to 3 days. At the time of sowing or planting, 10% of the granules were applied at the ditch or hole, and 75 kg were used per hectare.
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