Blowfly strike: biology, epidemiology and control

Blowfly strike is one of the most unpleasant yet familiar annual problems that sheep farmers need to deal with. Strike causes significant welfare problems for sheep and costs for farmers in terms of both time and money. The development of good prevention strategies is an important opportunity for sheep veterinarians to engage with their clients; this requires a clear understanding of the scope of the problem and the challenge it presents. This article explains the biology of the blowfly, the risk factors and how to control strike. It also considers the costs involved in managing this problem.