紫茎泽兰不同部位提取物对白星花金龟的趋避及毒杀作用  

Repellent and Toxic Effects of Extracts From Different Parts of Ageratina adenophorum on Protaetia brevitarsis

作　　者：吴学三 田翙 姜霖 杨玉婷 殷郑艳 陈文龙[1] WU Xuesan;TIAN Hui;JIANG Lin;YANG Yuting;YIN Zhengyan;CHEN Wenlong(Institute of Entomology,Guizhou University,Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region,Scientific Observing and Experimental Station of Crop Pest in Guiyang,Ministry of Agriculture,P.R.China,Guiyang,Guizhou 550025,China;Guizhou Key Laboratory of Medicine Plants Breeding and Cultivation,Guiyang,Guizhou 550025,China)

机构地区：[1]贵州大学昆虫研究所/贵州省山地农业病虫害重点实验室/农业农村部贵阳作物有害生物科学观测实验站,贵州贵阳550025 [2]贵州省药用植物繁育与种植重点实验室,贵州贵阳550025

出　　处：《山地农业生物学报》2021年第4期87-92,共6页Journal of Mountain Agriculture and Biology

基　　金：贵州省科技支撑计划(黔科合支撑[2018]2362)。

摘　　要：紫茎泽兰能散发刺激性气味,有一定杀虫活性。本文利用室内生物测定及浸渍法,测定紫茎泽兰不同部位对白星花金龟的趋避活性及毒杀作用。结果表明:紫茎泽兰不同部位对成虫的趋避活性存在差异,成虫对茎、叶、花表现出负趋性,对根表现出正趋性;3龄幼虫对紫茎泽兰不同部位提取物表现出负趋性,大小为叶>茎>根>花;1龄幼虫对不同部位提取物差异不显著(P>0.05),2龄及3龄幼虫对花、茎及叶提取物之间差异显著(P<0.05)。紫茎泽兰茎、叶提取物对3龄幼虫具有毒杀作用,且随着处理时间及提取物浓度的增加毒杀作用增强,大小表现为茎>叶。研究结果能为开发防治白星花金龟的植物源杀虫剂提供试验依据。Ageratina adenophorum can emit pungent odor,which has certain insecticidal activity.In this paper,the repellent activity and toxic effect of extracts from different parts of A.adenophorum to Protaetia brevitarsis were carried out by laboratory bioassays and impregnation method.The results showed that there were significant differences in the repellent activity of extracts from different parts of A.adenophorum to adults.Adults showed negative tendency to stems,leaves and flowers,and positive tendency to roots.The larvae of three ages showed negative tendency to extracts of different parts of A.adenophorum,with the size of leaves>stems>roots>flowers.The 1 st instar larvae had no significant difference in the repellency of extracts from different parts(P>0.05),while the 2 nd and 3 rd instar larvae had significant differences.The extracts of the stems and leaves of A.adenophorum were toxic to the 3 rd instar larvae,and the toxic effect was enhanced with the increase of the treatment time and the concentration of the extracts,with the size of stems>leaves.The results of the research can provide a experimental for the development of plant-derived insecticides for the control of P.brevitarsis.

关 键 词：紫茎泽兰 白星花金龟 醇提物 行为反应 毒杀作用 

分 类 号：S433.5[农业科学—农业昆虫与害虫防治] S476.9[农业科学—植物保护]