Several methods for the preparation of pollution-free pesticides
The turfgrass preparation for controlling aphids uses 10 kilograms of ash per acre and is soaked in water for 24 hours. The filtrate is a vegetation ash formulation. The preparation can effectively control locusts and yellow squash; if onions, garlic, and leeks are threatened by the species fly, 20-30 kg of plant ash can be applied or controlled per acre, which can prevent locusts and increase potassium fertilizer.
The pigeon feces preparation that can prevent and treat the ground tigers will weigh 10kg of 1kg of pigeon droppings into water and place them in jars and other containers for 15-20 days. Stir evenly before use to become a pigeon feces preparation. The preparation is poured on the roots of the vegetables, which can prevent the ground tigers and add fertilizer to the vegetables.
Baking soda preparations that can prevent and cure various kinds of vegetable diseases are made with baking soda (sodium bicarbonate, commonly known as face starter) as a 0.2% baking soda liquid spray, which can effectively control the powdery mildew, anthracnose, downy mildew and cowpea of ​​cucumber and Chinese cabbage. Gray mold. Potassium permanganate that can prevent damping-off is sprayed with a 0.2% potassium permanganate dilution solution, which can effectively prevent melon powdery mildew. Generally, it can be sprayed once every 5-6 days and sprayed 2-3 times. . After the eggplant is transplanted and lived, spraying with 800 times potassium permanganate can effectively prevent eggplant knock-down.
The above is a few kinds of soil matching methods for pollution-free pesticides, and conditional farmers may wish to try.
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