Evaluation of upstream point treatment in flowing water ditches by Aquabac (Bacillus thuringiensis var. israelensis) against Culex quinquefasciatus.

摘要

The effectiveness of the upstream point treatment by AQUABAC Biolarvicide (Bacillus thuringiensis var. israelensis, Biological Larvicide Aqueous Suspension) against Culex quinquefasciatus Say in slow-flowing water ditches has been evaluated in St. Augustine Beach, St. Johns County, FL. The upstream point treatment by AQUABAC (liquid) at 0.5 liter/acre provided significant levels of larval control of Cx. quinquefasciatus for all sections of the downstream for 9 days. The upstream point treatment method by larvicides may have potential for use, minimize environmental impacts, and reduce cost and labor in mosquito-control operation for slow-flowing water ditches.