The world’s highest insect virus insecticide was born in China
Only two or three grams per mu can control pests Pan Feng The reporter learned from the seminar of the Xinjiang Production and Construction Corps 2006 Plant Protection and the “Keyun†NPV biopesticide new technology training and promotion seminar held in Beijing on November 10, and was inaugurated by the Institute of Zoology, Chinese Academy of Sciences. Dr. Qin Qilian, the State Key Laboratory of Integrated Management of Rats and Rodents, has successfully developed a new type of insecticide with a high content of insect viruses. The virus content per gram of the original drug is as high as 500 billion virus particles, more than 20 times that of similar products, and is currently international The highest content of known viral pesticide products, only 2 to 3 grams per mu of cotton fields can control pests. The cotton bollworm virus, also known as Helicoverpa armigera nuclear polyhedrosis virus (NPV), is a specific pathogenic organism of Helicoverpa armigera. The bollworm NPV biological pesticide has good control effect and lasting efficacy, and has no toxic or side effects to other organisms. It is an insect insecticide product developed and produced by various countries in the world, and is also the first registered insect virus biopesticide in the world. However, for a long time, the Helicoverpa armigera NPV must be produced through “living organismsâ€. A number of core technologies have not been fundamentally broken, resulting in a small scale of production, high production costs, and difficulty in industrialization. Since 2003, the researchers of the Institute of Zoology, Chinese Academy of Sciences, and the technical personnel of Henan Jiyuan Baiyun Industrial Co., Ltd. have worked collaboratively, and for the first time in the world, they have adopted the "Hull bollworm group raising technology" to improve the feed formulation and reform the larvae. Through other means, the scale and efficiency of production have been increased by several dozen times; through the adoption of a unique virus separation and purification technology, the virus content in the original drug has been greatly increased. In one fell swoop, it broke through the major technical bottlenecks that severely restricted the industrialization of the product, significantly reduced production costs, realized large-scale factory production, and promoted the world's insect virus biopesticide industry to a new level. In September 2004, the original drug of Helicoverpa armigera NPV insecticide obtained the pesticide registration certificate of the original drug of China's first virus insecticide. Xinjiang is the main cotton producing area in China. The existing cotton fields cover an area of ​​21 million mu. However, the ecological environment in Xinjiang is very fragile. How to coordinate the contradiction between agricultural production and environmental protection is the goal of the local community. With the organization and cooperation of the Xinjiang Production and Construction Corps General Agricultural Technology Extension Station, researchers began to conduct field trials of multi-site and multi-site insecticides with high levels of insecticides in some fields of the BINGTUAN since 2005. The control effect on the bollworm is better than conventional chemical pesticides. In particular, when chemical pesticides almost completely killed the natural enemies of Helicoverpa armigera in the field, the virus insecticide had almost no effect on the natural enemies of the bollworm, and could be degraded naturally in the natural world after use and would not cause pesticide residues. This type of pesticide was used continuously. Products will not produce pest resistance, highlight its unique safety, environmental protection advantages, has been included in the Ministry of Agriculture, the first "list of pollution-free agricultural products recommended pesticide species list." In 2006, a larger-scale demonstration experiment was conducted. The area of ​​use exceeded 500,000 mu, the overall control effect reached 80%, and nearly 100 tons of chemical pesticides were released in the environment. The ecological benefits were significant. The biological control of agricultural pests and diseases has broad application prospects, and can gradually reduce and completely eliminate a series of environmental disasters such as soil degradation, ecological imbalance, pesticide residues, and human and livestock health caused by large-scale use of chemical pesticides, with significant environmental and social benefits. . The Xinjiang Production and Construction Corps will promote the application of the world's highest-content viral pesticide product independently developed by Chinese scientists in a larger area next year.
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