研究人员和棉农们,用抑制棉株生长后期无效青铃的方法来防治红铃虫,已经试验过好几年了。这些青铃无助于增加棉花产量,却能隐藏红铃虫幼虫,红铃虫在美国西南部是危害棉花最严重的害虫之一。快到冬季,白天日渐变短,气温降低,红铃虫幼虫产生一种反应,它们沿着蛀道从青铃中出来,落到地面,钻入土中进行冬眠——又叫滞育。到了春季,它们大量地羽化,在新种的棉地内,重又开始它们的生命周期。除去作为幼虫一种食源的后期青铃,能消除很高百分率的越冬虫口,有两种方法能抑制青铃的产生;停止后期灌溉,以减慢植 Researchers and farmers have been experimenting with control of pink bollworm for several years by using a method that inhibits the ineffective cyanosis of late-growing cotton plants. These Cyclones do nothing to increase cotton yield, but they can hide the pink bollworm larva, which is one of the most damaging pests in the United States. As winter approaches, the daytime becomes shorter and the temperature drops. As a result, the larvae of the red bollworm produce a reaction. They emerge from the green bell along the tunnel and fall to the ground, drilling into the soil for hibernation - also known as diapause. In the spring, they have been massively plunged, and their life cycle has been resumed in the new species of cotton. Removing late cyanobacteria, which are a food source for larvae, can eliminate a high percentage of overwintering insects and there are two ways to stop the production of cyanobacteria; stop late irrigation to slow down