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The Efficacy of Two Azidotriazine Compounds as Poultry Feed-Through Fly Larvicides

1979; Elsevier BV; Volume: 58; Issue: 5 Linguagem: Inglês

10.3382/ps.0581167

1525-3171

C. M. Çhristensen, F. W. Knapp, Jessica Tuttle,

Forensic Entomology and Diptera Studies

The azidotriazine compounds CGA 19255 (6-azido-N-cyclopropyl-N-ethyl-1, 3, 5 triazine 2, 4-diamine) and CGA 34296 (2-[[4-azido-6-(cyclopropylamino)-1, 3, 5-triazine-2-yl] amino] propanenitrile) were fed to White Leghorn hens at 2.5, 5.0, and 10.0 ppm to evaluate their efficacy as feed-through fly larvicides and were compared with methoprene fed at 10.0 ppm. Hens fed untreated feed were the controls. Flies reared from manure produced by the various treatment groups were Musca domestica L., Fannia scalaris (F.), Ophyra aenescens (Wiedemann), Lucillia illustris (Meigen), Hermetia illuscens (L.), and Sarcophaga sp. Analysis of variance indicated a significant chemical effect on M. domestica, F. scalaris, and O. aenescens. Nonorthogonal contrasts indicated that both CGA compounds at all treatment levels were significantly more effective in controlling M. domestica than methoprene or no treatment. Higher levels of the CGA compounds were more effective than lower levels. Methoprene was the least effective fly larvicide but still gave significant control. Neither CGA compound was effective in controlling F. scalaris. Both CGA compounds and methoprene gave significant control of O. aenescens. Evaluation of the entire fly population indicated that the higher levels of CGA 19255 were most effective in controlling flies.