India's "Sacred Tree" - Neem tree, originated in India, Myanmar and other places, as early as 1000 years ago, the local people have discovered its magical functions, in the preservation of food, pest control, treatment of gingivitis, skin diseases, etc. The area plays an important role. The banyan tree is regarded as a "sacred tree" by the local indigenous people. But at the time people did not know exactly what was in the tree playing the role of "god." In the 1960s, a German botanist met a disaster during a biological inspection in India. At the time, a group of locusts overwhelmed a crop, and in a matter of moment, the crop was suffocated by locusts. But there is a tree in it, and this is the Neem tree. The scientist studied and analyzed that the seeds, leaves, and bark of the banyan tree contained a substance, azadirachtin, which, because of its existence, enabled the banyan tree to have the magical function of insect repellent treatment. After further research, azadirachtin and other components extracted from Azadirachta fruits are currently recognized as a broad-spectrum, high-efficiency, low-toxicity, easily degradable, residue-free insecticide and non-resistance-resistant. They are common to almost all plant pests. Has a kill effect. Tests have shown that the Indian cockroach has special effects on the prevention and control of more than 400 kinds of agricultural and forestry, storage and sanitary pests in 10 orders, especially lepidopteran, coleopteran and other pests, without any pollution to humans, animals and the surrounding environment. With its unique biological characteristics, India and India have attracted widespread attention in various countries around the world. Indigenous biopesticides have become one of the hot spots in international commercial development. They are good afforestation and afforestation species for combating desertification in dry and hot areas. In 1992, the United States The report of the Academy of Sciences declares: "Indochina is a tree that solves global problems. It is the most promising plant and benefits everyone living on our planet. It may open up a new era of pest control." The practice of planting and industrial development has proved that the planting and industrial development of India and Yunnan not only has lasting ecological benefits and good social benefits, but also has enormous economic benefits. At present, more than 50 countries around the world have planted oysters, and more than 30 countries have researched the planting and utilization of jatropha. Nearly 10 countries have already built or are currently constructing Indochina pesticide plants, and more than 10 products have been registered and put on the market. China is relatively late in the planting and development of pesticides in India and India. In the 1990s, it was introduced into the Yunnan dry hot valley area and the hot and humid areas. The trial was successful and the development and use of Indigenous pesticides began. The research has also been successful. The Yunnan Provincial Government has strongly supported and attached great importance to it, and has listed it as a major pillar industry. At present, the province has planted nearly 100,000 mu, combined with the return of farmland to forests to continue to expand the planting area, and has developed 0.3 in product development. % Azadirachtin Emulsion, 10% Azadirachtin, 70% Azadirachtin, and more than 10 Azadirachtin products and Azalea Auxiliary products. Yunnan is currently the largest province in India, which has the largest scale, the fastest start, and the fastest development speed. Currently only Yunnan, Sichuan, and Guangxi Baise Sangao Biological Co., Ltd. have introduced cultivation. 0.3% azadirachtin EC product has been put on the market and has exerted its good insecticidal effect. It is now recognized as the most ideal biopesticide for the creation of pollution-free food, green food, and organic food. The orange spider has been approved by the Agricultural Bureau of Zhaoqing City. And pests such as rust niches have special effects, and the control effect is over 90%; the phytosanitary plant protection station in Kaiyuan City of Yunnan Province has good prevention and control of the larvae, cabbage caterpillars, tapeworms, aphids of the diamondback moth in cruciferaceae. The effect is characterized by fast knockdown and long duration of efficacy, and the control effect is over 95%; the plant protection and phytosanitary station of Yuanmou County, Yunnan Province, controls 2.5% of locust times in comparison to control insecticides such as Helicoverpa armigera, Liriomyza, and Cauliflower. The prevention and control effects of net, 5% natural pyrethrum EC and 1.8% abamectin EC were all more effective than those of the control drugs. At present, the Nancai Beiyun vegetable base in the county has been widely used and has achieved good economic and social benefits. It has been listed as the first pollution-free vegetable base in the country. Therefore, the popularization and application of azadirachtin biopesticides will play a very important role in the construction of pollution-free bases such as vegetables in our city.
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