Pesticides are a "double-edged sword". While protecting agriculture to increase production and income, it also increases the resistance of pests and diseases, the use of pesticides continues to increase, agricultural products and the environment are polluted, human and animal poisoning accidents occur frequently... and so on. To this end, the Ministry of Agriculture proposed to achieve zero growth in the use of pesticides for major crops by 2020; recently, it is required to reduce the use of pesticides. In order to achieve the goal of reducing pesticides and increasing efficiency, some pesticides and fertilizers in China will be matched with each other, which can greatly reduce the use of chemical pesticides, greatly reduce the cost of prevention, effectively control the pollution of pesticides to the environment, protect natural enemies and increase crop yield. The method of quality and prevention of pests and diseases is as follows: Grass ash and its preparations: Grass ash is a commonly used high-quality fertilizer. With the development of science and technology, its use is more and more extensive, showing extraordinary functions in controlling crop diseases and insect pests. (1) Direct application of pest control: 1. Control the root rot of fruit trees, first remove the soil from the roots of the fruit trees, remove the roots of the disease, sprinkle with a layer of grass ash, and then cover with pure soil, which can effectively control the root rot of fruit trees. 2, onions, garlic, alfalfa and other vegetables, vulnerable to breeding flies. When cultivating these vegetables, use 60-100 kg of grass ash per acre, spread it in the planting ditch, mix well with the soil, and then plant vegetables to prevent the damage of the fly larvae (mantle). During the growth of this kind of vegetables, the ash is sprayed on the stems and leaves, which can control the adults of the fly and spread on the roots, which can effectively prevent the damage of the larvae of the fly. 3. In the greenhouse and in the nursery bed, the disease is often caused by excessive humidity of the air and soil. Covering a layer of 2-3 cm of grass ash on the ground of the greenhouse and the seedbed can not only effectively reduce the humidity, but also protect the heat, prevent frost, control the spread of the disease, increase soil fertility, and promote crop yield increase. (2) spraying grass ash insecticide preparations: 1. 10 kg of hay ash per acre, soaked in 50 kg of water for 24 hours, filtered out, directly used for spraying vegetables, not only can control mites, whitefly, cabbage caterpillar, etc. A variety of pests, but also played a role in topdressing. 2. Use 40-50kg of fine grass ash per acre, mix 5kg of fine lime powder, spray the stems and leaves of the crops, and control pests such as aphids, red spiders, whitefly, and spotted flies. Or mix these plants and ash into 2kg of 2.5% trichlorfon powder, spray and control cotton fuxi, the insecticidal effect can reach more than 95%, than the use of trichlorfon powder alone, can save pesticides 50-60%. 3, grass ash Water plus crystal trichlorfon preparation. 10 kg of hay ash per acre, soaked in 50 kg of water for 24 hours, remove the filtrate, add 80% crystal trichlorfon 25 g and mix and spray, can control vegetables, grains, cotton, fruit trees, flowers and other crops Aphids, red spiders, cabbage caterpillars, bridgeworms, armyworms, whitefly, leafhoppers, leafworms and other pests. Spray once every 7-8 days, spray 3 times in a row, the control effect is good, and the crop can increase production by about 10%. Trichlorfon is sensitive to sorghum, corn, soybeans and other crops, and is susceptible to phytotoxicity. Do not use such crops. Vinegar plus cargo preparation: The vinegar is rich in nutrients, and the common vinegar, 40% dimethoate, and water are mixed evenly in a ratio of 1:1:1500. Spraying 50-60 kilograms per acre of foliage, it can control a variety of pests such as aphids, red spiders, thrips, leaf miners, and wheat leaf bees on crops such as grain, cotton, vegetables, fruit trees, and tobacco. About 95%. Compared with the single use of dimethoate pesticides, it can save more than 30% of the medicine and increase the insecticidal effect by 20-30%. Because the vinegar can soften the body wall of the pests and enhance the penetration of the liquid, thus improving the control effect; A variety of nutrients, as well as a significant increase in production. Tobacco preparations: Nicotine is a pesticidal ingredient in tobacco. Nicotine is a fast-acting insecticide with a wide range of insecticides. Nicotine is contained in the leaves and stems of tobacco, which is the highest in leaves. (1) Tobacco lime water: chop 0.5 kg of tobacco leaves or 2 kg of stalks, add 10 kg of water to boil for one hour, remove the residue, and then add lime water (0.5 kg of quicklime added to 5 kg of water). The filtrate was then added to 30 kg of water to prepare. 50-60 kg per mu can replace pesticides to control aphids, leaf fleas, whitefly, cabbage caterpillars, thrips, leaf curlers and other pests on vegetables, fruit trees, tea, cotton and other crops. (2) Tobacco soapy water: 50-60 grams of soap is heated with hot water, added to the tobacco water prepared above, and then mixed with 10 kg of water to form a uniform. Spraying the same amount on the above pests has the same control effect. Urea preparation: Urea is not only a commonly used high-quality fertilizer, but also has a certain insecticidal effect. (1) Urea and washing powder preparation: 0.5-0.7 kg of urea per acre, 125 g of neutral washing powder, and 50-60 kg of clean water are fully dissolved and then sprayed on the foliage. It can control a variety of pests such as aphids, red spiders, and cabbage caterpillars on various crops such as grain, cotton, vegetables and fruit trees. Spray once every 7-8 days, spray 3 times in a row, the control effect can reach about 95%. At the same time, it also plays a role of topdressing, which can increase crop yield by more than 10%. Because the washing powder contains sodium alkaloid, the active ingredient, it forms an air-impermeable, impervious film on the surface of the insect body when it comes into contact with the insect body, causing the insect to suffocate and die. (2) Urea and dichlorvos preparations: use 80% dichlorvos 25 ml per acre, 0.5 kg urea, add 50 kg of water, mix evenly, spray on the foliage, chew on vegetables, fruit trees, grains, cotton, tea, flowers and other crops. The pests of the mouthparts pests and sucking mouthparts have a powerful quick killing effect. The control effect on mites, red spiders, cabbage caterpillars, bridge-building worms, whitefly mites, and peach worms is as high as 95%. It is controlled once every 6-7 days, and it can be controlled for 3 times continuously, which can receive 50% of pesticides saved. Can increase crop yield by about 10%. Because dichlorvos has phytotoxicity to sorghum, it cannot be used; it is sensitive to melons and beans, and should be used with caution. (3) Urea and Dimethoate preparation: 50 ml of 40% dimethoate emulsifiable concentrate, 0.5 kg of urea and 60 kg of water per acre. After mixing evenly, foliar spraying can control crops such as vegetables, fruit trees, flowers, grains and cotton. The aphids, thrips, leaf miner and other pests have good effects and have obvious effects on increasing yield. Diammonium phosphate preparation: 50-60 kg of water per acre, add 1% fertilizer solution of diammonium phosphate fertilizer, add 20-30 ml of 40% omethoate, mix well, and spray on the foliage. Sprayed every 7 days, even spraying 3 times, the control effect of red spider, aphid, thrips, cotton bollworm and other pests on grain and cotton crops can reach more than 93%, so that the crop yield increased by 7.6-9.5%. Phosphate fertilizer dilution: According to the cotton bollworm's spawning, the oxalic acid secreted by the cotton plant can attract it to lay eggs, and its fear of phosphorus in the face of phosphorus. During the spawning period of the cotton bollworm, 2% superphosphate solution, or 300-400 times of potassium dihydrogen phosphate solution, which is filtered to remove the residue, is sprayed on the top of the cotton plant, and spray 50-60 kg per acre. It is necessary to spray 8-10 rows per line, leaving 4 rows without spraying, driving the cotton bollworms to concentrate on the unsprayed cotton plants to lay eggs, and then spraying the eggs with a liquid solution such as chlorpyrifos and insecticidal effect. Strain can get twice the result with half the effort. Compared with chemical pesticides alone, it can save 70% of pesticides. The sprayed phosphorus fertilizer can react with oxalic acid secreted by cotton plants to form calcium oxalate, thus losing the ability to induce cotton bollworm; phosphorus can make eggs of cotton bollworm The shell hardens, so that its larvae can not break the shell and suffocate; phosphorus also prevents premature aging of cotton, reduces buds and shed, promotes maturity, increases yield, and improves fiber quality. By using the above preparations, it is possible to receive effective control of pests and diseases and to exert a fertilizing effect. It is really "one arrow and two sculptures", and the prevention and control of pests and diseases and fertilization can save a lot of labor. These preparations should be used with the preparation and should not be stored. It should be sprayed from 4 pm to no evening in the absence of strong winds; the spraying should be meticulous and thorough, so that the whole plant is evenly immersed. Strict use range, dosage, and concentration should be used to avoid phytotoxicity or fertilizer damage and ensure good results. The LED wall pack light is designed to provide powerful illumination while conserving energy, reducing maintenance costs, and significantly lowering the environmental footprint. 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