Members of the Willow Creek Watershed Council and Resource Analysis Team Members will be leading the Tour. Please bring a sack lunch. Drinks will be provided. R. C. Hinman Pesticides For Fly Control Fly control continues to be of major importance to cattle producers. Heavy horn fly infestation will cause cattle to have decreased weight gains and will decrease overall production in the herd.
Face flies are important because of the secondary damage they can cause.
The face fly irritates the animals' eyes by using rasp-like mouth parts to cause tear production. The face flies then feed off the excess tear secretions. Additionally, the face flies carry the causative agent of Pinkeye, Moraxella bovis. Both face flies and horn flies develop resistance to insecticides over time. For best prevention results its advisable to switch the eartag drug you use each year and even better to switch the class of drug you use.