篇名

病原線蟲對桔小實蠅種群的控制作用

並列篇名

Effects of Entomopathogenic Nematodes on the Oriental Fruit Fly, Bactrocera (Bactrocera) dorsalis (Hendel)

作者

林進添(Jin-Tian Lin);曾玲(Ling Zeng);梁廣文(Guang-Wen Liang);陸永躍(Yong-Yue Lu);賓淑英(Shu-Ying Bin)

關鍵字

小卷蛾斯氏線蟲 ; 夜蛾斯氏線蟲 ; 嗜菌異小杆線蟲 ; 桔小實蠅 ; 侵染力 ; 控制效果 ; 生命表 ; Steinernema carpocapsae ; Steinernema feltiae ; Heterorhabditis bacteriophora ; Bactrocera Bactrocera dorsalis Hendel ; pathogenicity ; control efficacy ; life table

出版品名稱

昆蟲學報

卷期/出版年月

48卷5期

頁次

736 - 741

內容語文

簡體中文

中文摘要

通過室內和田間實驗研究了昆蟲病原線蟲對桔小實蠅Bactrocera (Bactrocera) dorsalis (Hendel)的控制作用。室內實驗結果表明,供試的3種線蟲的4個品系(小卷蛾斯氏線蟲Steinernema, carpocapsae All品系與A24品系,夜蛾斯氏線蟲Steinernema feltiae SN品系和嗜菌異小杆線蟲Heterorhabditis bacteriophora H06品系),以小卷蛾斯氏線蟲All品系對桔小實蠅的侵染力最強,其3天的LD50和LD95分別為35.0和257.1條/平方公分土壤。按300條/平方公分土壤的量施用,小卷蛾斯氏線蟲All品系對當代桔小實蠅的控制效果為86.3%。用以蟲期作用因子組建的生命表方法評價了小卷蛾斯氏線蟲All品系對田間桔小實蠅下代種群的控制作用,結果表明,按300條/平方公分土壤的量施用線蟲,對照楊桃園的桔小實蠅種群趨勢指數為105.9,而處理楊桃園的桔小實蠅種群趨勢指數下降為15.5;小卷蛾斯氏線蟲All品系對桔小實蠅的干擾控制指數為0.146,即線蟲處理果園的下代種群密度僅為對照果園的14.6%。

英文摘要

Effects of four entomopathogenic nematode strains, i. e., Steinernema carpocapsae All, Steinernema carpocapsae A24, Steinernema feltiae SN, and Heterorhabditis bacteriophora H06, on the oriental fruit fly (OFF), Bactrocera (Bactrocera) dorsalis (Hendel) were investigated both in the laboratory and field. The results showed that among the four tested strains, the strain S. carpocapsae All displayed the strongest pathogenicity. The LD50 and LD95 of S. carpocapsae All in 3 days after treatment against the 3rd instar larvae were 35.0 and 257.1 infective juveniles/cm^2 soil, respectively. The index of population trend (Ⅰ) and the interference index of population control (ⅡPC) based on the life table with affecting factors in different stages in the field populations of B. (B.) dorsalis were used to evaluate the control efficacy of S. carpocapsae All against OFF. The field results showed that when S. carpocapsae All nemotodes in 300 infective juveniles/cm^2 soil were used to treat the soil, the control efficacy in 9 days after treatment against larvae and pupae reached 86.3%; the Ⅰ value of OFF was 15.5, significantly lower than 105.9 found in the orchard without nematode treatment; and the ⅡPC value of OFF in the treated orchard was 0.146, which meant that the population density of OFF in next generation in the treated orchard was reduced to 14.6% of the population density of OFF in the control orchard.

主題分類 生物農學 > 動物學