棉花是我地区重要经济作物,几年来,棉铃虫对我地区棉花生产造成了巨大经济损失,采用化学防治,不仅费功费力,同时,易污染环境,对人、畜造成危害。而且棉铃虫的抗药性也不断提高,化学防治的效果逐年下降。因此,探索一种有效的农业防治方法就势在必行了。我们于1998年开始了抗虫棉新品种在我地 Cotton has become an important economic crop in our region. Over the past few years, the cotton bollworm has caused huge economic losses to cotton production in our region. Using chemical prevention and control not only costs effort and effort, but also pollutes the environment and harms people and livestock. Moreover, the resistance of cotton bollworm also continuously increased, and the effect of chemical control decreased year by year. Therefore, to explore an effective method of agricultural control is imperative. We started a new breed of insect-resistant cotton in my land in 1998