insecticide, larvicide, ricefields, mosquito abatement
No mosquito abatement districts have ever been organized in Arkansas. Mosquito control efforts have been largely adulticiding operations by either aerial application or ground thermal fogging machines. Practically no chemical applications have been directed at the larval stage in residual water in ditches and depressions from which adult populations arise. Some larviciding with ethyl parathion has been done in ricefields. Although the treatment is very effective in mosquito reduction, voluntary treatment has not been completely successful. Because relatively little insecticide has been used as a larvicide in Arkansas, it was possible to evaluate the effect of recommended larvicides on non-target organisms in the aquatic environment. A developing mosquito control demonstration program in the rice-producing area provided the study site.
Lancaster, J. L. Jr. and Meisch, M. V.. 1974. Effects of Mosquito Control Chemicals on Aquatic Fauna. Arkansas Water Resource Center, Fayetteville, AR. PUB023. 34