杭白菊园绿盲蝽发生与防治

Occurrence and control of green plant bug, Apolygus lucorum, in chrysanthemum plantations in Tongxiang city, Zhejiang Province

为明确重要害虫绿盲蝽在杭白菊园发生动态和防治措施,遂于2012年选桐乡市主栽品种早小洋菊、晚小洋菊、异种大白菊园及3品种分别与桑树间作园,自6月初每半月调查1次。结果发现,7月底—8月初、9月上中旬、10月中旬—11月下旬出现3个虫口高峰,以最后1个历时最长、虫口密度最大;绿盲蝽若虫和成虫嗜好花蜜,可长时期潜入花朵中刺吸;纯菊园中,异种大白菊园虫口最少,晚小洋菊园虫口最多;间作园中,晚小洋菊-桑树间作园虫口最多,早小洋菊-桑树间作园虫口最少。药效试验表明,新型农药锐劲特效果较好。建议在10月上旬实施药剂防治。

In order to determine the fluctuation and the control method of green plant bug, Apolygus lucorum（Meyer-Dür）, in chrysanthemum plantations in Tongxiang city, three elite cultivars, Chrysanthemum morifolium ‘Zaoxiaoyangju’, ‘Wanxiaoyangju’ and ‘Yizhongdabaiju’, and their intercropping plantations with mulberry were chosen. The green plant bug was investigated from the beginning of June to the end of December at interval of half month in 2012. The results showed that：（1） The green plant bug peaked in the three populations from the end of July to the beginning of August and the early and middle September and from the middle October to the late November with the third period lasting for the longest duration and holding the most bug population;（2） Both nymphs and adults of the green plant bug always feed the nectar and stay in the inflorescence for a long time;（3） Among the pure chrysanthemum plantations, the bug density was the least in the population of ‘Yizhongdabaiju’, whilst that in ‘Wanxiaoyangju’ was the most;（4） Among the intercropping chrysanthemum plantations, the bug population in the ‘Wanxiaoyangju’-mulberry intercropping was the most, whilst that in ‘Zaoxiaoyangju’ was the least. The field trial confirmed the new insecticide Regent showed the best control efficacy in the four tested pesticides. We propose to execute chemical control to green plant bug in early October.