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四川省是我国玉米生产的大省,其玉米种植面积达70万hm2以上。影响玉米生产产量的因素有许多种,病虫害就是最主要的因素之一。根据相关资料显示,我国危害玉米产量的病害达30余种,虫害达250余种,仅出现的频率最高和危害最严重的病虫害就有20多种,病虫害的种类和地区差异有明显的关系。为了提高玉米的产量,需要针对不同的地区制定不同的方案。基于此,根据对四川省玉米主要病虫害的调查研究,设计了一套综合防治技术,旨在提高四川省的玉米产量。
Sichuan Province is a big province in China’s corn production with more than 700,000 hm2 of maize acreage. There are many factors that affect the yield of corn production. Pests and diseases are one of the most important factors. According to the relevant data, there are more than 30 kinds of diseases endangering maize production in China, more than 250 kinds of pests, only 20 kinds of pests and diseases with the highest frequency and the most serious harm, and the types of pests and diseases are obviously related with the regional differences. In order to increase the yield of corn, different programs need to be formulated for different regions. Based on this, based on the survey of major pests and diseases of corn in Sichuan Province, a set of integrated prevention and control technology was designed to improve the yield of maize in Sichuan Province.