安德森钝绥螨对不同猎物的捕食偏好性  

The predation preference of Amblyseius andersoni to different prey

作　　者：迟元铭 刘庆岩 孟瑞霞[1] CHI Yuanming;LIU Qingyan;MENG Ruixia(College of Horticulture and Plant Protection,Inner Mongolia Agricultural University,Hohhot 010011,China)

机构地区：[1]内蒙古农业大学园艺与植物保护学院,内蒙古呼和浩特010011

出　　处：《北方农业学报》2021年第4期115-119,共5页Journal of Northern Agriculture

基　　金：内蒙古自治区科技计划项目(2020GG0065);内蒙古自然科学基金面上项目(2019MS03018)。

摘　　要：【目的】评价新纪录种安德森钝绥螨(Amblyseius andersoni)对不同猎物的捕食偏好性。【方法】采用捕食量与捕食偏好性试验,并结合Cain评价指数分析安德森钝绥螨雌成螨对烟粉虱(Bemisia tabaci)、截形叶螨(Tetranychus truncatus)不同虫态的捕食偏好性。【结果】捕食量试验表明,安德森钝绥螨对烟粉虱1龄若虫的日均捕食量和总捕食量最高,分别为(7.19±0.59)头、(113.29±7.95)头;对截形叶螨幼螨的日均捕食量和总捕食量最高,分别为(12.00±2.18)头、(186.71±7.18)头。捕食偏好性试验表明,安德森钝绥螨对烟粉虱1龄若虫的捕食量为(7.90±1.22)头、对卵的捕食量为(2.50±0.59)粒,Cain指数D=3.16>1;安德森钝绥螨对截形叶螨幼螨的捕食量为(17.35±1.80)头、对卵的捕食量为(15.60±2.99)粒,Cain指数D=1.11>1;安德森钝绥螨对烟粉虱1龄若虫的捕食量小于对截形叶螨幼螨的捕食量,Cain指数D=0.51<1。【结论】相对于烟粉虱,安德森钝绥螨雌成螨的捕食更偏好于截形叶螨,且对截形叶螨的捕食更偏好于幼螨。【Objective】To evaluate the predation preference of Amblyseius andersoni(A.andersoni),a new recorded species,to different prey.【Methods】The predation preference of female adults of A.andersoni to different states of Bemisia tabaci(B.tabaci)and Tetranychus truncatus(T.truncatus)was analyzed by means of predation quantity and predation preference test combined with Cain evaluation index.【Results】In the predation quantity test,for B.tabaci,the highest average daily predation and total predation of A.andersoni was observed in 1st instar nymph,which were 7.19±0.59 and 113.29±7.95,respectively;for T.truncatus,the highest average daily predation and total predation of A.andersoni was observed in larvae,which were 12.00±2.18 and 186.71±7.18,respectively.In the predation preference test,the predation quantity of A.andersoni against 1st instar nymph of B.tabaci was 7.90±1.22,the predation quantity of A.andersoni against egg of B.tabaci was 2.50±0.59,and the Cain index(D)was 3.16>1;the predation quantity of A.andersoni against larvae of T.truncatus was 17.35±1.80,and the predation quantity of A.andersoni against egg of T.truncatus was 15.60±2.99,and the Cain index(D)was 1.11>1;the predation quantity of A.andersoni against 1st instar nymph of B.tabaci was lower in comparison with larvae of T.truncatus,and the Cain index(D)was 0.51<1.【Conclusion】Compared with B.tabaci,A.andersoni showed higher predation preference to T.truncatus,especially for larvae of T.truncatus.

关 键 词：安德森钝绥螨 烟粉虱 截形叶螨 捕食量 捕食偏好性 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]