Abstract

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Title:: KONG Weina1,WANG Yi2,GUO Yongfu2,NIU Guofei1,CHAI Xiaohan2,MA Ruiyan2

Author(s):: (1.Institute of Plant Protection; Shanxi Academy of Agricultural Sciences/Shanxi Key Laboratory of Integrated Pest Management in Agriculture; Taiyuan; Shanxi 030031;2.College of Agriculture; Shanxi Agricultural University; Taigu; Shanxi 030801); Grapholitha molesta;sex pheromone;oviposition attractant;food bait;formula

Keywords:: Grapholitha molesta; sex pheromone; oviposition attractant; food bait; formula

Abstract:: Three kinds of attractants (sex pheromone,oviposition attractant,food bait) were used as test materials,the optimum formula for controlling local Grapholitha molesta was studied in peach orchard using the method of field screening,in order to provide a theoretical basis for the development of a new type of attractant of Grapholitha molesta which could induce both male and female.The results showed that,sex pheromone ratio mainly affected species recognition and dose mainly affected positioning of potential mate before mating.The best ratio and dose of sex pheromone was 524 μg,(Z-8-12∶Ac)∶(E-8-12∶Ac）∶（Z-8-12∶OH）∶（12∶OH）=100∶6.8∶19.1∶5.4.Adult could distinguish a wide range of host plant volatiles,so dose could not be a limiting factor in recognition.Adults preferred volatiles of peach shoot,followed by high concentrations of peach fruit volatiles.The best ratio and dose of host plant volatiles was 0.201 mg,nonanal∶Hexenyl acetate∶6-methyl-5-hepten-2-one∶ocimene=14∶100∶1∶86.Food bait had great potential to trap females and the trapping effect was stronger than males.The attracted object might be pregnant females.The best ratio and dose of food bait The best ratio and dose of food bait was 0.6 mL, 12 drops of terpinyl acetate solution (24.25 mL of terpinyl acetate with 0.75 mL of nonionic wetting agent and 25 mL of warm water).