Hi-- My hens have slightly pale combs (they are still young and growing--about half size at three months. I wormed them yesterday per my feed store's advice with piperizine. We have a dog kennel we seldom use, but it is next to the chicken coop, probably not good. The chickens seem in good health. Maybe they are not quite mature yet or is this paleness normal in hens? The red hens combs are pale yellowish I have a white hen and rooster that are already probably full size in three months, they are giant compared to the red chickens and other chickens I've had in the past, and the white hen also has a pale almost white, barely pink, comb compared to the rooster. They are eating me out of house and home, and are active. I'm afraid they may have mites or something like that. We plan to dust them with Sevin this time until I get to town to get some poultry dust. Most people tell me to use Sevin dust, is this the best or the cheapest, or what? I can get a peritherine type dust for poultry at tractor supply, would this be better? It is hot and humid where I live, and we can have real bug problems. I have noticed flies going under the feathers of the chickens, but they chickens don't seem to notice. I don't know if they are biting flies, they look like houseflies. I was considering getting a CountryVet automatic sprayer that emits timed bursts and placing it about ten feet from the chicken coop but pointed at it. I don't want to contaminate the water or food or chickens. Has anyone used one of these with chickens? Would a zapper or strips be better? We have huge mosquitoes and biting gnats. Thanks for any help in this. Spring has sprung and is super hot and full of bugs this year.