I use this as a preventive all year long at least once a month, spraying entire coop and nesting boxes. I've never had an issue with bugs on or off my chickens.
I have 18 chickens and with Fenbendazole I could tell they were getting what they needed every day I changed the water, it was almost empty!
After day 2 they began laying better and I was getting more eggs.
I love when returning products is hassle free. I’ve never had to return anything to you but I’m happy to know it will be an easy process.