The effectiveness of field pest management and culling at harvest for risk mitigation of two fruit flies affecting citrus in China

文献类型： 外文期刊

第一作者： Xia, Yulu

作者： Xia, Yulu;Ma, Xingli;He, Jiayao;Lu, Guocai;Pan, Xubin;Liu, Hui;Xiao, Fulian;Ouyang, Gecheng;Xiao, Linzuo;Lin, Zhushan

作者机构：

关键词： systems approach; Bactrocera minax; Bactrocera dorsalis; fruit dissection; phytosanitary measures

期刊名称：FLORIDA ENTOMOLOGIST （ 影响因子：1.425； 五年影响因子：1.595 ）

ISSN： 0015-4040

年卷期： 2020 年 103 卷 4 期

页码：

收录情况： SCI

摘要： The oriental fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephrtitidae), and the Chinese citrus fly, Bactrocera minax (Enderlein) (Diptera: Tephritidae), are 2 destructive citrus fruit pests in China. A field study was conducted during Sep to Oct of 2018 in Dongkou County of Hunan Province to assess (1) fruit infestations at the time of harvest under 2 management levels, and (2) the efficacy of culling at harvest (i.e., visual inspection and removal of the infested fruits) on reducing the number of infested fruits. A total of 26,400 fruits of Satsuma mandarins, Citrus unshiu (Swingle) Marcov (Rutaceae), were harvested from 2 groves with 1 representing highly managed groves, and the other representing commonly managed groves (low management). Fruit culling was conducted immediately to separate fruits into 5 groups: (1) B. minax infested fruits, (2) B. dorsalis infested fruits, (3) B. minax + B. dorsalis infested fruits, (4) suspected fruit fly infested fruits, and (5) fruit fly free fruits. Fruit dissection was conducted 4 wk later to determine the actual number of the infested fruits, and also to act as a check on the accuracy of visual inspection on the reduction of the number of infested fruits. The highly managed grove had 0.02% infested fruits vs. 2.19% in the low managed grove, a 99.09% reduction in infestation rate. Culling reduced the infested rate to 0.0077% in the highly managed grove and 1.14% in the low managed grove, a reduction of 62% and 48%, respectively, compared to that before culling. About 99% and 73% of fruits which were identified as infested actually were pest free in the 2 groves, respectively. The result of this study suggests that field management is highly effective and critical in reducing fruit fly infestation. The efficacy of culling at harvest on reducing the number of infested fruits was moderate. The accuracy of using culling for identifying the infested fruits was unreliable.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序