Release of the latest prevention and control technology of Spodoptera exigua

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On the 9th, China Academy of Agricultural Sciences launched the latest "Control Manual of Spodoptera exigua" for plant protection stations in all provinces of China. This manual brings together the research results of biology, disaster characteristics and migration law of this major agricultural pest in the past year, and a set of control technologies developed on this basis, which will further promote the maturity and demonstration application of related technologies and guide production practice.

Wu Kongming, an academician of China Academy of Engineering and vice president of China Academy of Agricultural Sciences, said that Spodoptera exigua (Spodoptera exigua) had threatened the production safety of corn and other food crops since it invaded China in February 20 18. In order to ensure food security and resolutely win the battle against Spodoptera exigua, China Academy of Agricultural Sciences has developed a set of control techniques for Spodoptera exigua. This technology divides the occurrence area of Spodoptera exigua in China into annual breeding area, wintering area and immigration area, which provides a scientific basis for "regional control".

He introduced that the research and development of this technology has formed a practical technical system for forecasting grassland borers, including an automatic identification system: farmers and grass-roots plant protection workers can take photos by mobile phones or upload images directly to identify them in real time; The population forecasting system predicts the population development and control period by providing field survey data. The technology also suggested that China should adopt a two-step control strategy of "emergency control and green sustainable control" and implement a comprehensive control technology system focusing on chemical control, physical control, biological control and agricultural control within one or two years to solve the emergency control problem of meadow moth. It will take 3-5 years to build and implement a comprehensive prevention and control technology system with advanced technologies such as accurate monitoring and early warning and efficient interception as the core, so as to achieve the goal of low cost, green and sustainable control. At present, some technologies have been popularized in Yunnan, Guangxi, Sichuan, Fujian, Jiangsu, Shandong, Henan and other regions, and have also guided the production of a number of large and medium-sized pest control enterprises.

It is reported that up to now, a series of breakthroughs have been made in the joint research of Spodoptera exigua, including clarifying the biological and ecological laws of Spodoptera exigua, determining the genome type, feeding range, damage loss and overwintering breeding area of pests.

If you want to know more about the latest prevention and control technology of Spodoptera exigua, please keep an eye on the deep space science and technology information column, and Bian Xiao will continue to update you with more science and technology news.

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