摘要
为研究食蚜瘿蚊不同龄期幼虫对不同龄期烟蚜的捕食能力,通过室内试验评估不同龄期食蚜瘿蚊幼虫的捕食功能反应和食蚜瘿蚊3龄幼虫对不同龄期烟蚜的种内干扰作用。结果表明,食蚜瘿蚊幼虫对不同龄期烟蚜的捕食功能反应均为Ⅱ型,其中2龄食蚜瘿蚊幼虫对1~2龄烟蚜的处理时间短(2.0525 h),理论最大捕食量最大(11.69头);3龄食蚜瘿蚊幼虫对不同龄期烟蚜的控制作用均强于2龄食蚜瘿蚊幼虫,对高龄烟蚜(3~4龄)的控制效果最为明显;食蚜瘿蚊3龄幼虫对不同龄期烟蚜的日均捕食量随着食蚜瘿蚊密度的增加而显著增大,但平均捕食率随着食蚜瘿蚊密度的增加而逐渐减小。食蚜瘿蚊捕食不同龄期烟蚜的种内干扰作用不同,干扰程度为1~2龄(0.76)>4龄(0.64)>3龄(0.57)。因此,食蚜瘿蚊对烟蚜的控制潜能较大,是一种可应用的蚜虫天敌。
In order to investigate the predatory potential of the predatory gall midge Aphidoletes aphidimyza(Rondani)on different instar stages of tobacco aphid Myzus persicae(Sulzer),we studied the functional response of second and third instar larvae of A.aphidimyza and intraspecific interference effects of third instar larvae of the predatory midge.Our results showed that when fed with tobacco aphids at different instar stages,the functional response of second and third instar larvae of the midge fit the model type II.Second instar larvae of the predatory midge have the shortest handing time(2.0525 h)and the highest theoretical predation amount(11.69)when fed with first or second instar tobacco aphids.Third instar larvae of the predatory midge have higher potential predation compared to second larvae and better suppression effect on older instar tobacco aphids.Daily predation of third instar larvae on different instars tobacco aphids were obviously increased with increased density of predatory midge,but the average predation rate was the opposite.Intraspecific interference effects of third instar larvae were varied when fed with different instars tobacco aphid M.persicae.The interference degree when feed on tobacco aphid M.persicae was first to second instar(0.76)>fourth instar(0.64)>third instar(0.57).In summary,the predatory midge A.aphidimyza has a high potential with suppression control ability that can be used to control tobacco aphid M.persicae.
作者
王秀琴
欧后丁
于晓飞
芶剑渝
刘健锋
申修贤
刘明宏
杨茂发
WANG Xiuqin;OU Houding;YU Xiaofei;GOU Jianyu;LIU Jianfeng;SHEN Xiuxian;LIU Minghong;YANG Maofa(Institute of Entomology of Guizhou University,Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Regions,Guiyang 550025,China;College of Tobacco Science of Guizhou University,Guiyang 550025,China;Guizhou Tobacco Company,Zunyi Branch Company,Zunyi,Guizhou 563000,China)
出处
《中国烟草科学》
CSCD
北大核心
2020年第5期79-86,共8页
Chinese Tobacco Science
基金
贵州省烟草公司遵义市公司科技项目“食蚜瘿蚊对烟蚜的防治技术研究与应用”(201608)
中国烟草总公司贵州省公司重大科技专项“贵州烟草主要病虫害绿色防控技术的研究与应用”(201752010040001)
贵州大学引进人才科研项目“食蚜瘿蚊的规模化繁殖技术及其对烟蚜控制效果的评价”{贵大人基合字[2016]70号}。
关键词
食蚜瘿蚊
烟蚜
功能反应
干扰反应
捕食能力
生物防治
Aphidoletes aphidimyza
Myzus persicae
functional response
intraspecific interference effect
predatory capacity
biological control