Journal of Economic Entomology (2016) 109, 837-846

Tao Jin, Yu-Ying Lin, Qi-An Jin, Hai-Bo Wen and Zheng-Qiang Peng (2016)
Population susceptibility to insecticides and the development of resistance in Bactrocera cucurbitae (Diptera: Tephritidae)
Journal of Economic Entomology 109 (2), 837-846
Abstract: Excessive insecticide applications are commonly used to manage Bactrocera cucurbitae Coquillett in China. Resistance status, resistance development trends, and patterns of cross-resistance to insecticides in B. cucurbitae were investigated. Among 21 populations from Hainan Island, two populations expressed high resistance to beta-cypermethrin; seven, eight, and ten populations expressed intermediate resistance to spinosad, avermectin, and beta-cypermethrin, respectively; four, six, one, five, and four populations expressed low resistance to spinosad, avermectin, trichlorfon, beta-cypermethrin, and fipronil, respectively; and the remaining populations exhibited either minor resistance or remained susceptible. Analysis of the development of resistance showed that resistance levels to spinosad and avermectin were readily developed at 40.68- and 18.42-fold, respectively, and a spinosad-resistant strain also showed relative positive cross-resistance to beta-cypermethrin and avermectin, but relative negative cross-resistance to trichlorfon and fipronil. These data represent the most extensive survey of insecticide resistance conducted in B. cucurbitae to date, and the level of insecticide resistance in populations should be considered when designing control measures and pest management strategies.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Zheng-Qiang Peng, Tao Jin

Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Zeugodacus cucurbitae		China (south)