In recent years, China has actively promoted the prevention and control of insect pests by natural enemy organisms, thereby reducing pesticide use. Through the yellow Trichogramma alternative to chemical control of sugar cane borer, Guangxi in 7 years time to achieve a total economic benefit of 440 million yuan, reducing the amount of chemical pesticides more than 30 tons.<\/p>\n
Recently, Guoxu Quan, deputy director of the Guangxi Zhuang Autonomous Region Agriculture Department, said at a high-level forum of the National Enemy Insects and Sci-tech Innovation Alliance held in Nanning, Guangxi, that the annual planting area of \u200b\u200bsugarcane in Guangxi is about 15 million mu and the output and area account for 60% the above. From 2011 to 2017, a total of about 3 million mu of sugarcane fields in Guangxi were planted with bee-pollinators. It has been determined that per-mu yield of sugarcane increased by 29% compared with the conventional control areas and 78.7 kg of sugaring sugar per mu.<\/p>\n
Zheng Li, chairman of the National Natural Enemy Insect Science and Technology Innovation Alliance, said that at present, the control of crop pests in our country is still dominated by chemical pesticides. The coverage rate of green prevention and control technology is less than 1\/4 and the use of chemical pesticides is high, affecting the quality and safety of agricultural products and agricultural ecology Safety. The use of natural enemies of biological pest control can effectively reduce the amount of pesticides, China has more than 20 kinds of natural enemies of insects to achieve the industrial application, but the application area is less than 1%.<\/p>\n
Zhang Yuejin, chief expert on plant protection of China Agricultural Technology Extension Service Center, said that in accordance with the requirements of China’s agricultural green development, we will speed up the pace of development of insect natural enemies and explore a diversified production system and technological model.<\/p>\n","protected":false},"excerpt":{"rendered":"