Toxicity of Selected Mosquito Sprays and a Synergist to Channel Catfish Sac Fry

摘要

In the spring when channel catfish, Ictalurus punctatus, hatcheries are in full operation, the associated moisture and warm temperatures provide a haven for mosquitoes. Large swarms of biting mosquitoes in a hatchery can make the tedious work of egg-picking (i.e., removing dead and fungus-infested eggs from egg masses) and feeding fry almost unbearable. Besides causing undesirable working conditions – for workers sensitive to mosquito bites, blisters, bruises, or large inflammatory reactions can occur – mosquitoes also harbor viruses or other diseases that can be transmitted to humans, including West Nile Virus.