Development of Resistance to Spinosad in Oriental Fruit Fly (Diptera: Tephritidae) in Laboratory Selection and Cross-resistance.
From: Taiwan Agricultural Chemicals and Toxic Substances Research Institute, Council of Agriculture, 11, Kuang Ming Road, Wufeng 413, Taichung Hsien, Taiwan.
Journal of economic entomology
- Publish Date: Jun 2006
- ISSN: 0022-0493
- Volume: 99
- Issue: 3
- Pages: 931-6
- Medium: Print
- Language: English
- Citation (JAMA): Hsu Ju-Chun, Feng Hai-Tung, et al. Development of Resistance to Spinosad in Oriental Fruit Fly (Diptera: Tephritidae) in Laboratory Selection and Cross-resistance.. J. Econ. Entomol. Jun 2006;99:931-6
Abstract
In this study, we assessed the potential for the development of resistance to the insecticide spinosad in a laboratory colony of the oriental fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae). Resistance was selected by using topical applications of spinosad. After eight generations of selection, the LD50 of the selected line was 408 times greater compared with that of the untreated parental colony. This spinosad-resistant line did not exhibit cross-resistance to 10 other insecticides tested, including six organophosphates (naled, trichlorfon, fenitrothion. fenthion, formothion, and malathion) one carbamate (methomyl), and three pyrethroids (cyfluthrin, cypermethrin, and fenvalerate). However, using lines previously selected for resistance to these same insecticides, two of the 10 lines tested (naled- and malathion-resistant) did show some cross-resistance to spinosad. Also, oriental fruit flies from different field collections where naled and malathion have been used for control purposes displayed some resistance to spinosad. In addition, the effects of direct ingestion of spinosad through dietary supplementation also were tested. Overall, the laboratory resistance and cross-resistance data developed in this study provide new information that will be useful for managing the development of resistance when spinosad is used to control B. dorsalis in the field.
Mesh Headings (Keywords): Animals, Drug Combinations, Insecticide Resistance, Insecticides, Macrolides, Selection (Genetics), Tephritidae
Check for Full Text / PubMed Unique Identifier (PMID): 16813333
This abstract is part of PubMed, a service of the U.S. National Library of Medicine. PubMed includes more than 17 million citations from MEDLINE and other life science journals for biomedical articles. See Copyright and Disclaimers.
Linked medical terms appearing on this page are added by Healia to help readers find more information and are not part of the original PubMed document.
The data herein was last updated on July 8th, 2008 and may not reflect the most current and accurate data available from NLM.