Effects of Bayofly on specimens of Culicoides species when incubated in hair taken from the feet of previously treated cattle and sheep.
Sheep and cattle were treated with Bayofly pour-on containing 1 g cyfluthrin per 100 ml ready-to-use solution. Seven, 14, 21 and 28 days after treatment, hair was clipped off from the back and feet and mixed for 10-15 s, 30 s, 1 or 2 min with freshly caught Culicoides midges. It was found that the insecticide on hair from the legs--the predominant biting site of midges--had a significant killing effect on Culicoides for 3-4 weeks, even after a short-term contact.
Mehlhorn
Heinz
H
Institute for Zoomorphology, Cytology and Parasitology, Heinrich Heine University, 40225 Düsseldorf, Germany. mehlhorn@uni-duesseldorf.de
Schmahl
Günter
G
Schumacher
Bärbel
B
D'Haese
Jochen
J
Walldorf
Volker
V
Klimpel
Sven
S
D000818:Animals; D001733:Bites and Stings / Q000517:prevention & control* / Q000662:veterinary; D002417:Cattle; D002418:Cattle Diseases / Q000469:parasitology / Q000517:prevention & control; D002519:Ceratopogonidae / Q000187:drug effects*; D005121:Extremities / Q000469:parasitology; D005260:Female; D007306:Insecticides / Q000008:administration & dosage / Q000627:therapeutic use*; D008297:Male; D009570:Nitriles / Q000008:administration & dosage / Q000627:therapeutic use*; D011722:Pyrethrins / Q000008:administration & dosage / Q000627:therapeutic use*; D012756:Sheep; D012757:Sheep Diseases / Q000469:parasitology / Q000517:prevention & control
D007306:Insecticides; D009570:Nitriles; D011722:Pyrethrins; C052570:cyfluthrin