Non-pharmaceutical control of vegetable pests and diseases
9. To control insects by fertilizer: Urea has the function of destroying insect chitin, and the "washing urea mixture" prepared by mixing urea, detergent and water in a ratio of 4:1:400, and aphids that harm vegetables and flowers, Various insect pests such as cabbage caterpillar and red spider have good control effect; in the spawning period of cabbage caterpillar, 1 to 3% lime water or 1% to 3% superphosphate calcium leaching solution spray has good control effect.
10. Treat insects with dead insects: Pick 100 grams of cabbage worms per acre, smash and rot them, add 250 ml of water, add 50 grams of detergent, add 50 kg of water, and mix 0.2% of the caterpillars with body fluid. More than 90%.
11. The use of bacteria to treat insect pests: According to reports, the Beijing Academy of Agriculture and Forestry Sciences uses cultures of the culturing and breeding of the cesium spp. to control greenhouse whitefly, and its nymph parasitism rate can reach more than 80%.
12. Treating insects with antibiotics: 10% Liuyangmycin emulsifiable concentrates have a strong contact effect on fleas and are effective for 7 days. They are safe for natural enemies. With 10% Liuyangmycin EC 1000 times, spraying began in the early stage of leaf blast, spraying once every 7 days, even spraying 2 or 3 times.
13. Heap trapping: Using the habit of squatting on the back of a thin layer of grass, the small haystacks with a thickness of 10 to 20 centimeters are placed evenly on the field in rows of 5 meters and 3 meters long. Killing; If you put some poison baits under the haystack or use a wooden stick with a diameter of 3 to 5 centimeters to make a hole, the effect is better.
14. Yellow trap: Aphids, whiteflies, etc. have strong tropism toward yellow, yellow traps can be set to kill adults. The method is: cut the fiberboard or cardboard into a 10.2-meter long strip, apply orange peel, apply a layer of viscous oil (add a little oil with a small amount of oil on the 10th oil), 32-34 pieces per acre, place on the line Between the bottom of the yellow plate and the top of the plant, the level is even or slightly higher. When aphids, whitefly, etc. stick to the board, it is necessary to re-stick the sticky oil, which is usually recoated 7 to 10 days.
15. Sex Hormones Trapping: The use of pheromone to control pests is a new pest management technology developed in recent years. The trapping and killing of female moths is simple, low-cost, easy to popularize, and the effect is obvious when the amount of insects is small. The procedure is: make a circular cage 10 cm long and 3 cm in diameter with a 50 to 60 mesh insect net. Place 1 to 2 un-matched female moths in each cage and hang the cage on the basin. Inside the water and add a little kerosene, put it in the field after dusk, killing many male moths every night.
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