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Issue:ISSN 2095-1353
           CN 11-6020/Q
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Your Position :Home->Past Journals Catalog->2017年54 No.1

Oviposition preferences and reproductive success of Drosophila suzukii on 4 non-host fruits
Author of the article:LIU Yan1** XIE Dong-Sheng2 ZHANG Feng3 ZHANG Jin-Ping3 HU Chun-Hua3 ZHANG Jian-Mei1 XIONG Yan1
Author's Workplace:(1. Plant Protection College, Yunan Agricultural University, Kunming 650201, China; 2. Devision of European Affairs, Foreign Economic Cooperation Center Ministry of Agriculture, P. R. China China-EU Center for Agriculture Technology, Beijing 100125, China; 3. MOA-CABI Joint Laboratory for Bio-safety, Beijing 100193, China; 4. College of Continuing Education and Vocational Education, Yunnan Agricultural University, Kunming 650201, China
Key Words: spotted wing Drosophila, Drosophila suzukii, non-host, oviposition preference, biological characteristics
Abstract:

 [Objectives]  The spotted wing Drosophila (SWD), Drosophila suzukii Matsumura (Diptera: Drosophilidae), is a pest that infests small stone fruits and cherries in the majority of fruit-growing regions of the world. The fruiting season of the usual hosts of this pest is relatively short. In order to find a natural fruit that could replace artificial diets for rearing populations of SWD, its oviposition preferences and reproductive success on 4 non-host fruits (banana, pitaya, mango, and grape) were studied. [Methods]  The olfactory responses and oviposition preferences of SWD reared on an artificial diet for each of the 4 non-host fruits were tested. In addition, the number of eggs laid, durations of the egg, larval, and pupal, periods, the hatching, pupation, emergence, and survival rates, plus the sex ratio, of SWD reared on each of the four fruits, were measured and compared. [Results]  The non-host fruits could be ranked in terms of olfactory response as follows; banana> mango> grape>pitaya, and in terms of oviposition preferences as; banana> pitaya>mango> grape. The survival rate of SWD on banana was significantly higher than on the other 3 fruits, and the duration of each life-stage was significantly shorter on banana than on the other fruits. [Conclusion]  Of the four fruits tested, SWD were most attracted by banana odor, and laid most eggs on bananas. Reproductive productivity was also higher on banana than on the other fruits

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