象虫金小蜂对烟草甲的寄生功能反应研究
2021-09-13王燕郭军张晓敏胡大鸣戴仁怀杨洪张森稳龙星黔
王燕 郭军 张晓敏 胡大鸣 戴仁怀 杨洪 张森稳 龙星黔


摘 要:为评价象虫金小蜂Anisopteromalus calandrae對烟草甲Lasioderma serricorne的控害潜能,本文研究了象虫金小蜂对烟草甲的寄生功能反应及自身密度干扰效应。结果表明,象虫金小蜂对烟草甲幼虫和蛹的寄生功能反应均符合HollingⅡ模型。象虫金小蜂在24 h内对烟草甲幼虫、蛹的最大寄生量分别为14.14头、5.19头。象虫金小蜂雌蜂的发现域随着自身密度的增加而逐渐变小,雌蜂间的干扰降低了寄生效能,其干扰效应符合Hassell-Varley模型:a=0.0804 Pt- 0.4055。该研究结果可为象虫金小蜂的繁殖和应用提供参考。
关键词:象虫金小蜂;烟草甲;控害潜能;功能反应
中图分类号:S476+3
文献标识码:A
文章编号:1008-0457(2021)04-0082-05
国际DOI编码:10.15958/j.cnki.sdnyswxb.2021.04.012
Abstract:The parasitic functional responsesand itsself-density interference effects of Anisopteromalus calandraeto Lasioderma serricorne were conducted through the functional reaction model analysis in order to evaluate their control potential.The results showed that the parasitic functional response of A.calandrae against L.serricorne larvae and pupa was consistent with the Holling II model.The maximum parasitism of A.calandrae to L.serricorne within 24 h was up to 14.14 larvae and 5.19 pupae,respectively.The discovery area of the female of A.calandrae gradually decreased with the increase of its density.The interference between females reduced the parasitic efficiency.The interference effect could be described as Hassell-Varley:a=0.0804 Pt- 0.4055.Therefore,the results of this study can provide a reference for the storage application of A.calandrae.
Keywords:Anisopteromalus calandrae;Lasioderma serricorne; control potential; function response
烟草甲Lasioderma serricorne (Fabricius)属鞘翅目窃蠹科,是全世界储藏烟草的重要害虫,主要以幼虫为害烟叶[1-4]。在全世界广泛分布,国内除宁夏、青海等省(自治区)外均有分布[5]。在贵阳地区烟叶仓库中,烟草甲每年发生3代,4月化蛹,5月上旬越冬代进入成虫期,5月下旬进入羽化高峰期,7月中旬进入第1代成虫发生高峰期,9月下旬至10月上旬进入第2代成虫发生高峰期[6]。每年因卷烟虫害给全世界的烟草造成的损失高达1%。其中,以烟草甲的危害性最大,烟草甲广泛存在于烤烟、白肋烟、香料烟的烟叶、烟梗及各种卷烟制品中。并且由其造成的油渍烟、虫烟等受消费者的关注度非常高,极易引起消费者投诉,由此给烟草产业带来不可估量的损失。近些年来,烟草甲的防治手段主要以物理防治和化学防治为主[7-8]。化学防治最常用的方法是利用以磷化铝或磷化镁为发生剂的磷化氢进行熏蒸处理[9-11]。……
