Prevention of blowfly strike on sheep by cypermethrin.
Merino ewe lambs (n = 500) were used in a trial to assess the efficacy of cypermethrin in preventing blowfly strike on sheep. Three hundred of these lambs were treated with 300 mg cypermethrin each and run as a separate flock. One hundred lambs were used as untreated controls and a further 100 lambs were treated topically with a larval growth regulator as treated control animals. It was found that the synthetic pyrethroid afforded total protection for 3 weeks against strike by Lucilia cuprina. The blowfly challenge was heavy, and 26% of the untreated control animals were struck in the 4 week trial period.
Gruss
B
B
Fort Cox College of Agriculture and Forestry, Middledrift, Republic of Ciskei.
D000818:Animals; D007306:Insecticides / Q000627:therapeutic use*; D011722:Pyrethrins / Q000627:therapeutic use*; D012756:Sheep; D012757:Sheep Diseases / Q000517:prevention & control*; D012876:Skin Diseases, Parasitic / Q000517:prevention & control / Q000662:veterinary*
D007306:Insecticides; D011722:Pyrethrins; C017160:cypermethrin