I've pretty much given up on DE. Sweet PDZ seems to dry things up better, and Sevin and permethrin dusts actually work to kill the bugs. Ditto for cat/dog flea/tick sprays and shampoos. I tend to use the powders in bedding and the spray or shampoo on the birds. I will sometimes use a concentrated premise spray on the whole coop.
I've had a dickens of a time with mites all winter; no lice for quite awhile, though. However, I do keep checking--you can lose babies FAST.
You used to be able to purchase 5 and 10lb bags of sevin; now the best I can find is a 3 pack of 1 lb containers at Lowes (I don't know anyone else who carries the 3-pack). I think the garden/poultry dust at ACE comes in 4lb bag. If I had only one coop, those would be fine; but I have a plethora of coops, and really would prefer to purchase a much larger quantity--it tends to be a lot less expensive that way.
Some folks use frontline spray; there have been concerns about it affecting fertility, though.
I've had a dickens of a time with mites all winter; no lice for quite awhile, though. However, I do keep checking--you can lose babies FAST.
You used to be able to purchase 5 and 10lb bags of sevin; now the best I can find is a 3 pack of 1 lb containers at Lowes (I don't know anyone else who carries the 3-pack). I think the garden/poultry dust at ACE comes in 4lb bag. If I had only one coop, those would be fine; but I have a plethora of coops, and really would prefer to purchase a much larger quantity--it tends to be a lot less expensive that way.
Some folks use frontline spray; there have been concerns about it affecting fertility, though.