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棉红铃虫、棉铃虫,大豆食心虫、豆天蛾、菜青虫、小菜蛾是影响我省棉花、大豆和蔬菜生产重要的害虫,每年都有不同程度发生,有的年份暴发成灾,造成严重损失。过去,我省为防治这些虫害,在棉花和大豆生产上使用的几种高残留或高毒农药,对发展我省棉花、大豆生产,起过重要作用。但是长期使用之后,害虫对其产生抗性,防效下降,为保持防效,增加了用量,导致对环境污染,中毒事故和成本增加。因此,在棉花、大豆和蔬菜产区更新农药,寻求高效、安全、低残留少污染的取代农药品种,成为当务之急。
Cotton bollworm, cotton bollworm, soybean heartworm, bean budworm, cabbage caterpillar, Plutella xylostella are important pests affecting the cotton, soybean and vegetable production in our province and occur to different extents each year. Some of the years were outbreaks and serious loss. In the past, several high-residue or highly toxic pesticides used by our province to prevent and control these pests and the production of cotton and soybean played an important role in the development of cotton and soybean production in our province. However, after long-term use, the pests produce resistance to them and the control efficiency drops. In order to maintain the control effect, the dosage is increased, resulting in environmental pollution, poisoning accidents and costs. Therefore, it is imperative to update pesticides in cotton, soybean and vegetable producing areas to find efficient, safe and low residue less polluting alternatives to pesticides.