LongRange® (eprinomectin), faecal residues, and dung-breeding insects
Citation
Nieman, C. and K.D. Floate. 2016. LongRange® (eprinomectin), faecal residues, and dung-breeding insects. 64th Annual Meeting of the Entomological Society of Alberta, Calgary, AB, October 27-29. [oral presentation]
Résumé en langage clair
Cattle treated with parasiticides can faecally excrete insecticidal residues for weeks or months post-treatment, varying with the nature of the formulation; e.g., injectable, topical, bolus. Depending upon residue concentration and the sensitivity of the given taxon, activity of insects in dung of treated cattle is partially or completely suppressed. LongRange® (eprinomectin) is a novel 2-phase formulated parasiticide recently introduced into the market. Treated cattle excrete an initial pulse of residue in the first week post-treatment, followed by a second smaller pulse about 14 weeks post-treatment. In the first study of its kind, results show insect suppression in dung deposited by cattle treated up to 20 weeks previously with LongRange®. Implications are discussed.
Résumé
Cattle treated with parasiticides can faecally excrete insecticidal residues for weeks or months post-treatment, varying with the nature of the formulation; e.g., injectable, topical, bolus. Depending upon residue concentration and the sensitivity of the given taxon, activity of insects in dung of treated cattle is partially or completely suppressed. LongRange® (eprinomectin) is a novel 2-phase formulated parasiticide recently introduced into the market. Treated cattle excrete an initial pulse of residue in the first week post-treatment, followed by a second smaller pulse about 14 weeks post-treatment. In the first study of its kind, results show insect suppression in dung deposited by cattle treated up to 20 weeks previously with LongRange®. Implications are discussed.