Aphids and red spiders are serious pests that injure fruit trees. They can be used locally in rural areas to prevent and control them using waste tobacco. This reduces costs, reduces pesticide pollution, and improves fruit quality. 1. Control red spiders. Discard the waste or low-grade tobacco leaf (smoke and tobacco bones can be broken) 0.5 kg plus 5 kg of boiling water, cover soak for 24 hours, stir once every 3-4 hours, so that the active ingredients in the tobacco leaves fully oozing out . All the tobacco leaves will be used to pull the smoke out of the tobacco leaves, and then remove the tobacco leaves, filter with gauze, add 15 kg of water in the filtrate, stir well and serve. Spraying once every 5 days and using 2 times in total can basically control the danger of spider mites. With the good tobacco leaves should be used up the same day, the latest no more than the second day. In summer and autumn, when the drought and high temperature are dry, 0.5 kg of tobacco leaf is used to prepare 25-30 kg of water to prevent phytotoxicity. The addition of 0.1% waste diesel oil or synthetic washing powder in the formulated tobacco leaf water is more effective. 2, control locusts. The shreds, veins, or useless parts of the low-grade tobacco are chopped, 10 kg of water per kilogram of raw material, boiled for 1 hour, filtered, and sprayed with a cooling filtrate to control aphids. Generally, they are sprayed once every 3-5 days. It can also be mixed with tobacco water and lime water for better efficacy. Evaporative Cooler Air Conditioners,Portable Air Conditioners,Air Coolers from Aircon Direct,Air Cooler with Water Ningbo Shuangtuo International Trade Co., Ltd. , https://www.nbst-sports.com