Effects of the mosquito larvicide GB-1111 on red-winged blackbird embryos
Environmental Pollution
6083 Albers.pdf
By: P.H. Albers, D. J. Hoffman, D.M. Buscemi, and M. J. Melancon
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Abstract
Golden Bear Oil (GB-111 I; legal trade name for GB-1313) is a petroleum distillate that is used in the United States and other countries as a larvicide for mosquito suppression. As part of a multi-species evaluation of the potential effects of GB-1111 on birds, red-winged blackbird eggs were collected, artificially incubated, and treated with one of five amounts of GB-1111 varying from 0 to 10 times the expected exposure from a spray application of the maximum recommended amount (X=47 l/ha, 5 gal/ac). The application of 10 X caused a significant reduction in hatching success. A dose-related reduction of hepatic microsomal mono-oxygenase activity (EROD) was detected. Among body weights, skeletal measurements, and age at death, only crownrump length was different among experimental groups. Overall, the potential hazard to embryos of a representative wetland passerine appears minimal until the application rate exceeds 3 X.
Suggested Citation
Albers, P., Hoffman, D.J., Buscemi, D., and Melancon, M.J., 2003, Effects of the mosquito larvicide GB-1111 on red-winged blackbird embryos: Environmental Pollution, v. 125, no. 3, p. 447-451.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Effects of the mosquito larvicide GB-1111 on red-winged blackbird embryos |
| Series title | Environmental Pollution |
| Volume | 125 |
| Issue | 3 |
| Year Published | 2003 |
| Language | English |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 447-451 |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Environmental Pollution |
| First page | 447 |
| Last page | 451 |