Peer-reviewed veterinary case report
Efficacy of three flea and tick treatments on outdoor dogs over five
By Varloud, Marie & Hodgkins, Elizabeth·Published in Parasitology research·2015·Ceva Santé, France·View original on PubMed →
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Original publication title: Five-month comparative efficacy evaluation of three ectoparasiticides against adult cat fleas (Ctenocephalides felis), flea egg hatch and emergence, and adult brown dog ticks (Rhipicephalus sanguineus sensu lato) on dogs housed outdoors.
- Species:
- cat
Plain-English summary
A group of 32 outdoor dogs was treated monthly for four months to see how well different flea and tick medications worked against adult cat fleas and brown dog ticks. The treatments included a combination of dinotefuran, pyriproxifen, and permethrin, which proved to be highly effective, showing over 90% success against both fleas and ticks throughout the study. Another treatment with fipronil and (S)-methoprene also worked well against fleas but had variable results against ticks. Overall, the study found that the right combination of treatments can keep your dog protected from fleas and ticks, even in tough outdoor conditions.
People also search for: dog flea treatment effectiveness · best tick prevention for dogs · outdoor dog flea and tick control
Abstract
This study was designed to compare the efficacy of three topical combinations on dogs in outdoor conditions against adult cat fleas (Ctenocephalides felis), flea egg hatch and emergence, and against adult brown dog ticks (Rhipicephalus sanguineus sensu lato). Treatment was performed on day 0 with a placebo; dinotefuran, pyriproxifen and permethrin (DPP); fipronil and (S)-methoprene (FM) or imidacloprid and permethrin (IP). Dogs (n = 32), housed outdoors for 7 months, were treated monthly for four consecutive months (on days 0, 30, 60 and 90) and infested with ~100 unfed adult fleas on days 14, 55, 74, 115 and 150 and with ~50 unfed adult ticks on days 28, 44, 88 and 104. Adult fleas were counted and removed 24 h after infestation. Immediately after flea removal, dogs were reinfested with ~100 new adult fleas 72 h prior to egg collection for up to 48 h. Flea eggs were incubated for 32 days, and newly emerged adults were counted. Ticks were counted and removed 48 h after each infestation. FM had >90 % efficacy against fleas at each time point and variable efficacy against ticks (38.0-99.6 %). Efficacy of IP was <90 % against fleas at day 64 and against ticks at day 30 of the first post-treatment. No flea eggs were laid in the treated groups until infestation was carried out >60 days after the last treatment. Despite challenging weather conditions, DPP was highly effective, providing >90 % efficacy against adult ticks as well as adult and immature fleas at every time point of the study.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/25547077/