Some large-scale methods such as manipulation of the habitat have been suggested. This could be done by removing unnecessary woody plants from residential areas or draining of wet areas to reduce suitable breeding habitat. The use of insecticides is generally thought of as economically unfeasible. Granular insecticides were applied to the water in the 50s but environmental effects were eventually considered. Spraying for the adults is also ineffective.
Some traps are cylindrical, black and shiny balls.
The flies are attracted to these objects as the wind moves them. Malaise traps can catch large numbers of flies by simply being in their flight paths or by the use of attractants, such as CO 2 and octenol. For livestock, pyrethroid pour-ons function as limited repellents. Self-applicating methods are not effective for horse flies. Ear tags and head collars impregnated with insecticides have had success in control.