Using "Cao Fang" with pesticides
With the enhancement of people's concept of health, the demand for pollution-free vegetables is getting higher and higher, and pesticide residues have been paid more attention by people. The artificial preparation of pollution-free "earth pesticides" to prevent and control pests and diseases, the effect is good, low cost, simple production, and harmless to humans and animals, can be described as multiple purposes. Here are some commonly used soil pesticides formulated "grass side": First, the corpse preparations, insect pests. Collect cabbage pests, ground tigers, and other pests in the vegetable garden and pound it into pulp. After immersing it in 100 ml of water for 1 day, remove the residue, add 50 kg of water, add a small amount of washing powder, and mix thoroughly until it is properly blended. "Medicine." Sprayed on vegetables that are attacked by similar pests, the insects refuse to eat due to odor, and the kill rate can reach more than 50%. Second, leaf insecticide, simple and easy. With fresh eucalyptus leaves or skunk leaf 1 kg pounded, add the same amount of water for one day, filtered to the residue, add 50 kg of water spray, can control cabbage caterpillar, aphids and so on. Third, onions, garlic, pepper, insecticide obvious. Take 50 grams of onions, garlic, and pepper, wet and smashed, wrapped in gauze, soaked in 15 kg of water for 24 hours, and sprayed with leachate to effectively control aphids and red spiders. Fourth, "sugar cannonballs" trap and kill pests. Use 0.5 kg of brown sugar, 1 kg of vinegar, add 10 kg of water, mix and stir, and then add appropriate amount of insecticide. Fraction pots are placed in vegetable plots. Adults such as cabbage caterpillar can greatly reduce their larvae. harm. V. "Play (gray) residual heat" can also cure pests. Use 10 kg grass ash to add water 50 kg, soak for 24 hours, take filtrate to spray, can control aphids; at the same time, onion, garlic, leek by the species fly, onion fly hazards, can spread 30-50 kg of acre per acre, can prevent Well, it can increase production, and the effect is obvious. Six, potassium permanganate, soaking seed spray in one move and more. Using a 0.2% potassium permanganate dilution solution, soaking for 20 minutes, and washing with water, can kill pathogenic bacteria carried by the seeds and reduce pathogenic bacteria in later stages. 600-1000 times potassium permanganate solution spray, every 5-6 days spray 1, even spray 2-3 times, can effectively control melon powdery mildew and crop seedling damping-off disease, root rot. Seven, baking soda, show their talents. Spraying with 0.2% baking soda (100g of baking soda and 50kg of water) was effective in control of cucumber, cabbage powdery mildew, anthracnose, downy mildew, and gray mold. China Agricultural Network Editor
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