Authors: Lin, Yu-Ying; Jin, Tao; Jin, Qi-An; Wen, Hai-Bo; Peng, Zheng-Qiang

Source: Journal of Economic Entomology, Volume 105, Number 3, Pages 739-1106 , pp. 988-993(6)

Publisher: Entomological Society of America

Abstract:

To present the susceptibility of Brontispa longissima (Gestro) (Coleoptera: Hispidae) to insecticides, 22 populations were collected in Southeast Asia from 2007 to 2010. Moreover, the laboratory susceptible strain was maintained. The results demonstrated that the lethal concentration₅₀ value of the susceptible strain to avermectin, β-cypermethrin, and acetamiprid was 0.034, 0.024, and 1.843 mg liter⁻¹, respectively. Compared with the susceptible strain, 10 populations developed a medium level of resistance to avermectin (10.8-fold < resistance ratio [RR] < 34.7-fold) and 11 populations had low or minor resistance (3.6-fold < RR<9.6-fold), only one population from Qionghai still remained susceptible (RR = 2.04-fold). The Zhangjiang population expressed high resistance (RR = 46.1-fold), five populations expressed medium resistance (10.6-fold < RR < 18.1-fold), and 12 populations had low resistance (5.36-fold < RR < 9.66-fold) for β-cypermethrin, only four populations maintained low resistance or susceptibility (2.08-fold < RR< 3.49-fold). All populations were susceptible to acetamiprid (1.65-fold < RR < 2.89-fold), except for the Jakarta population that developed minor resistance (4.33-fold). This study shows that the resistance to β-cypermethrin and avermectin in B. longissima is widespread. However, most populations remain susceptible to acetamiprid. Acetamiprid may be considered an available option for the control of B. longissima and should be considered when designing pest management programs.

Keywords: Brontispa longissimi; avermectin; β-cypermethrin; acetamiprid; insecticide susceptibility

Document Type: Research article

DOI: http://dx.doi.org/10.1603/EC11387

Publication date: 2012-06-01

More about this publication?

• Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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