PVC Formulation of Anastrepha suspensa Pheromones Suitable for Field Studies  

作　　者：Daniel Kuzmich Zachary A.Kawagoe Spencer S.Walse 

机构地区：[1]San Joaquin Valley Agricultural Sciences Center,Agricultural Research Service,United States Department of Agriculture,Parlier,CA 93648,USA [2]Agricultural and Environmental Chemistry Graduate Group,University of California,Davis,CA 95616,USA

出　　处：《Engineering》2021年第11期1646-1650,共5页工程（英文）

基　　金：This research was funded by the USDA-Agricultural Research Service and the Cooperative Research and Development Agreement(#58-3K95-4-1665)with Betterworld Manufacturing(Fresno,USA).

摘　　要：Tephritid flies threaten the production of fruits around the world.In the Americas,populations of the genus Anastrepha are monitored with trapping networks as part of pest management programs.Here,we report the formulation of male Anastrepha suspensa(Loew)pheromones,(±)-anastrephin and(±)-epianastrephin,into a poly(vinyl chloride)(PVC)polymer-based lure ready for trap deployment.The PVC polymer disks(100 mg)contain 10%by weight of(±)-epianastrephin and(±)-anastrephin in a naturally occurring 7:3 diastereomeric ratio,respectively.Emission of the pheromones from the disks into an airstream was evaluated as a function of the abiotic environmental parameters,absolute humidity and temperature.Kinetic data supports a diffusion-controlled mechanism of release from the matrix with first-order rate constants that decreased about ten-fold as the temperature was lowered from 30 to 15C.As such,the emission of volatile pheromones from the disks is suitable to last for several weeks in the field.This kinetic approach,which can be easily extended to the diffusion-controlled release of other attractants from polymeric matrices,yields laboratory predictions of the potential for environmental loss prior to conducting field bioassays.

关 键 词：ANASTREPHA Anastrephin Epianastrephin PVC lure Controlled release 

分 类 号：TQ453.4[化学工程—农药化工] TQ325.3