棉田不同方式插种向日葵对绿盲蝽种群数量的影响

摘要

In the comparative experiment, the systematic investigation was carried out to study the influence of interplanting sunflower in different cultivation and management ways on population quantity of Lygocoris lucorum Meyer - Dur. In transgenic insect - resistant cotton fields. The results showed that sunflowers had obvious trap role to Lygocoris lucorum and applying nitrogen fertilizer on sunflowers could enhance the trap a-bility obviously. It could decrease the occurrence of Lygocoris lucorum in cotton field by interplanting sunflowers. It could strengthen the role of interplanting sunflowers for decreasing the occurrence of Lygocoris lucorum by appling nitrogen fertilizer and reasonable chemical management.%采用对比试验方法,系统调查了转基因抗虫棉田内不同种植管理方式插种向日葵对绿盲蝽种群数量的影响.结果表明:向日葵对绿盲蝽具有明显的诱集作用,向日葵施氮肥可以明显提高其对绿盲蝽的诱集能力；棉田插种向日葵能减少棉田绿盲蝽的发生危害；棉田插种向日葵、施氮肥并防治其上绿盲蝽能大大强化棉田仅插种向日葵减少棉田绿盲蝽发生危害的作用.