Efficacy and nontarget effects of Larvadex as a feed additive for controlling house flies in caged-layer poultry manure.
The insect growth regulator N-cyclopropyl-1,3,5-triazine-2,4,6 triamine (Larvadex, CGA 72662, cyromazine) was provided as a feed additive (.3% Premix per ton of feed) to caged laying hens under field conditions in high rise, wide span and narrow poultry houses. The chemical effectively controlled house flies (Musca domestica) and soldier flies (Hermetia illucens). The feed additive had no adverse effect on the populations of manure-inhabiting mites (Macrochelidae and Uropodidae) and histerid beetles (Carcínops pumulio), which prey on fly eggs and larvae. Satisfactory fly control was demonstrated by use of the additive 50% of the time when the interval without the additive in the feed was 4 days but not when the interval was 7 days. Use of a fly monitoring program to time the use of the feed additive is advocated.
D000818:Animals; D002645:Chickens; D005260:Female; D005503:Food Additives; D006793:Houseflies; D006799:Housing, Animal; D007300:Insect Control / Q000379:methods*; D007306:Insecticides / Q000008:administration & dosage*; D008372:Manure; D014227:Triazines / Q000008:administration & dosage*
D005503:Food Additives; D007306:Insecticides; D008372:Manure; D014227:Triazines; C028704:cyromazine