Okay so I've Identified the problem. 1. clean coop / nesting boxes of all liter. 2. wash roost in Linseed Oil / Keroseen mix 3. Spray coop / nesting boxes in permethrin 4. Allow to dry. 5. Build Indoor dustbox (raining season here until next june) 6. Fill box with woodstove ashes and DE (Food Grade) 7. Add food grade DE to food What am I missing?