Simple pest control technology for pollution-free vegetables
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The first is the ash ash insecticide method.
(1) Soil application: 30 to 40 kilograms of grass ash per acre, preferably applied to the planting ditch, and then covered with soil after sowing or planting, which can control root-based pests.
(2) Direct application: After the grass ash is ground, it is sprinkled on the pests in the morning when the dew is not dry, and the plant ash is 1 to 2 kg per mu.
(3) Spraying ash liquid: soak 3 kg of grass ash and water 10 kg for 3 days, spray ash liquid after filtering residue, and spray 50 kg per mu.
The second is the tobacco pest control method. Weigh the grass and water in a ratio of 1:40. First, shred the tobacco leaves, soak them in boiling water and cover them. When the water temperature drops to about 20 degrees Celsius, pour the soaked leaves until they are not thick. Tobacco leaves, put into another basin of water and continue to knead for 40 times. The filter residue is used to remove the tobacco leaves, and the tobacco juices are all mixed for use in field pest control. The spraying amount per mu is about 50 kg.
