论文部分内容阅读
棉蚜是我垦区棉花生产重要害虫.它不仅降低产量而且造成棉花的外粘糖及棉纤维内含糖量的增加,形成糖酯棉,因此,控制棉蚜的危害不仅是植棉的需要,也是棉纺企业的要求.十多年来,我团深入开展综合防治,充分发挥自然因素的控制作用,94年在棉蚜猖獗发生的年份中棉田93.48%的面积对棉蚜没有进行化防,而是利用自然天敌进行控制,实现了绿叶白絮不粘手的管理目标.一、棉蚜发生规律1、越冬场所;棉蚜在我垦区以孤雌胎生蚜在室内石榴、花椒、菊花、夹竹桃及温室、大棚蔬菜上.2、迁入:棉蚜初次迁入棉田是五月下旬5月27日棉田有蚜株率为19%,百株有翅蚜13头,无翅蚜91头,合计105头,此时是构成中心蚜株和点片发生阶段.
Aphis gossypii is an important pest of cotton production in our reclamation area, which not only reduces the yield but also increases the external sugar content of cotton and the increase of sugar content in cotton fiber to form sugar ester cotton. Therefore, controlling the harm of cotton aphid is not only the need of cotton planting, For more than a decade, our regiment has carried out comprehensive prevention and control and gave full play to the control of natural factors. In 1994, 93.48% of the area of cotton aphid was not protected against cotton aphid, Is the use of natural enemies to control, to achieve a green leaf white non-stick management goals. A cottony occurrence law 1, the overwintering place; cotton aphid in my reclamation area with parthenogenetic aphids indoors pomegranate, pepper, chrysanthemum, Peach and greenhouse, greenhouse vegetables .2, move in: cotton aphid moved into the cotton field for the first time in late May May 27 aphid cotton plant rate of 19%, a hundred has a winged aphid, 91 wingless aphids, A total of 105, this time is the center of aphids and spots occur stage.