卷蛾分索赤眼蜂对十字花科蔬菜挥发性物质的行为反应  

Behavioral responses of Trichogrammatoidea bactrae to volatiles of cruciferous vegetables

作　　者：郭祥令[1] 何余容[1] 王德森[1] 潘飞[1] 罗永丽[1] 

机构地区：[1]华南农业大学昆虫生态研究室,广州510642

出　　处：《环境昆虫学报》2011年第1期74-80,共7页Journal of Environmental Entomology

基　　金：国家公益性行业(农业)科研专项(200803001);国家自然科学基金项目(30871677)

摘　　要：在室内利用"Y"型嗅觉仪测定了卷蛾分索赤眼蜂Trichogrammatoidea bactrae Nagaraja对11种十字花科蔬菜挥发性物质不同浓度的嗅觉行为反应。结果表明:卷蛾分索赤眼蜂的嗅觉反应不仅与挥发物组分的种类有关,而且与每一种物质的浓度也有一定的关系。同一种挥发性物质因浓度的不同,对卷蛾分索赤眼蜂的作用可为吸引、趋避和无反应3种情况。1%的2,6,10,14-四甲基十五烷,1%和0.1%的癸酸乙酯对该蜂有极显著的吸引作用(P<0.01),浓度为1%的乙酸(2-乙基己基)酯、苯乙烯和0.1%的2-苯基乙基硫代异氰酸酯、正辛醛对该蜂的吸引作用达到显著水平(P<0.05)。10%的2,6,10,14-四甲基十五烷,10%和1%的2-苯基乙基硫代异氰酸酯对该蜂有极显著的趋避作用(P<0.01),10%的正壬醛、香桧烯和苯乙烯对该蜂的趋避作用也达到显著水平(P<0.05)。其它处理对该蜂的行为反应无显著影响(P>0.05)。中浓度1%的2,6,10,14-四甲基十五烷、2-苯基乙基硫代异氰酸酯和低浓度0.1%的苯乙烯对该蜂有显著的吸引作用,而高浓度10%的2,6,10,14-四甲基十五烷、2-苯基乙基硫代异氰酸酯和苯乙烯对该蜂却有显著的趋避作用。The olfactory behavioral responses of Trichogrammatoidea bactrae Nagaraja to eleven species of volatiles of cruciferous vegetables were investigated with ＂Y＂-tube olfactometer in the laboratory.The results indicated that olfactory responses of T.bactrae were influenced not only by volatile components but also by concentrations of each component.The behavioral responses of T.bactrae to concentrations of one component may be attraction and repellent or no response.Female wasps were significantly attracted by 1% 2,6,10,14-tetramethyl-pentadecane,1% and 0.1% decanoic acid-ethyl-ester（P0.01）.Attractive effects of 1% acetic acid-2-ethyl-hexyl-ester,1% styrene,0.1% 2-isothiocyanatoethyl-benzene,0.1% octanal on female wasps were lower compared with the former three（P0.05）.Female wasps were significantly repelled by 10% 2,6,10,14-tetramethyl-pentadecane,10% and 1% 2-isothiocyanatoethyl-benzene（P0.01）,and nonanal,sabinene,styrene at 10%（P0.05）.Others had no effects on the behavioral responses of female wasps（P0.05）.1% 2,6,10,14-tetramethyl-pentadecane and 2-isothiocyanatoethyl-benzene,0.1% styrene attracted female wasps,but their higher concentration（10%）,repelled female wasps.

关 键 词：卷蛾分索赤眼蜂 小菜蛾 十字花科蔬菜 挥发性物质 行为反应 

分 类 号：S476.3[农业科学—农业昆虫与害虫防治]