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我国政府始终把农业放在国民经济发展的首位。为保证粮棉增产和农业持续、稳定的发展 ,防止农作物的病虫害是一重要任务。我国植物害虫多达 160 0余种 ,半数以上省(区 )需要使用农药。 1999年全国农药 (有效成分 )总产量已增至 62 .5万吨。近年来 ,由于害虫产生抗性和农药市场
Our government has always placed agriculture at the top of the national economic development. In order to ensure grain yield and cotton yield and sustainable and stable development of agriculture, it is an important task to prevent pests and diseases of crops. As many as more than 160 species of plant pests in our country, more than half of provinces (districts) need to use pesticides. In 1999, the total output of pesticides (active ingredients) in the country had increased to 62,500 tons. In recent years, due to pest resistance and pesticide market