EAG Responses and Taxis Selection of Green Plant Bug Apolygus lucorum to Volatiles from Seven Species of Kinds of Malvaceae Plants
To design the attractants or repellents of the green plant bugs Apolygus lucorum for use in IPM,we investigated the EAG responses and taxis selection ofA.lucorum to volatiles from seven species of malvaceae plants.Volatile organic compounds (VOCs) from the plants were sampled using dynamic headspace adsorption device and then identified and quantified on GC-MS.EAG tests and taxis selection were assayed for the responses ofA.lucorum to 11 candidate volatiles from the malvaceae plants.The types and contents ofvolatiles collected from the seven malvaceae plants were different,and were even different from the four cotton varieties.The total volatile amount was the largest in cotton shiyuan321,with (3E)-4,8-dimethylnona-1,3,7-triene (DMNT) accounting for the most and nonanal and ocimene followed.The types and amount of volatiles in hollyhock Althaea rosea were the least.Eleven candidate volatiles elicited EAG responses in both male and female adult bugs and the responses were stronger in males than in females.The EAG responses were the highest for trans-2-hexenyl butyrate,and strong EAG responses to linalool,leaf acetate,6-methyl-5-hepten-2-one and DMNT were also observed.In behavior assay,α-pinene,DMNT and limonene attracted male bugs,and γ-terpinene,DMNT,myrcene,humulene,ocimene and leaf acetate attracted female bugs,γ-terpinene and leaf acetate being the best attractant for females.Therefore,male and female bugs showed different EAG and behavior responses to the volatiles from the malvaceae plants.The candidate chemicals were the potential attractants to be developed for control of A.lucorum in field.
国家科技期刊平台
NSTL
万方数据
维普
