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根据全国农技中心对2008年全国粮、棉作物主要病虫害发生趋势预报,预计中晚稻病虫害总体呈偏重(4级)发生态势,全国发生面积9.4亿亩次;玉米中后期病虫害总体为偏重(4级)发生,全国发生面积约6亿亩;棉花中后期主要病虫总体为中等(3级)发生,全国发生面积达3.1亿亩次。为了做好晚秋作物病虫害的防治,笔者把能防治上述病虫害的杀虫杀螨剂部分品种介绍给大家,并作简要的市场行情分析,供参考。
According to the National Agricultural Technology Center forecast of the main pests and diseases occurrence in grain and cotton crops in 2008, it is estimated that the pest and disease in the middle and late rice will be generally heavier (level 4), with a total area of 940 million mu in the whole country; Level occurred), with an area of about 600 million mu nationwide. The main pests and diseases in the middle and late cotton fields were moderate (level 3), with an area of 310 million mu nationwide. In order to prevent crop pests and diseases in late autumn, the author introduced insecticidal and acaricidal agents that can prevent and cure the above pests and diseases to some varieties, and made a brief analysis of the market conditions for reference.