Answer
Jun 02, 2022 - 12:40 PM
If your spray system uses pesticides rather than repellent, it could kill Fly Predators released in the area receiving spray. Generally, however, most fly breeding takes place outside the barn in areas that are hard to clean or used to stockpile manure or discarded hay, which are the areas we most want to place Fly Predators. Most flies inside the barn have come in from the outside seeking food and shelter.
