For every ONE mite you see, there are at least one to two dozen that you do not see. DE will NOT treat an infestation of mites or lice or worms. It MAY help prevent them. Whether or not it is effective in worming the birds...there is as much research that says it is completely ineffective as there is to say it is effective.
I suggest that you take your one bird that you are concerned with and bathe her in dog flea/tick shampoo. Follow the directions on the package, but generally you need to leave the shampoo on the bird for about 10 minutes. When you go back to rinse her, you will probably find out how backly infected she was as the dead mites will have dropped on onto the tub or sink floor. Then worm her with eprinex (for zero withdrawal time) or with regular ivermectin or piperazine. Ivermectin works best, but if she has a heavy load of worms, a complete worming can be dangerous for her--better to do a layered approach of piperazine, followed a couple of weeks later with ivermctin. Note: the eprinex carries the same risk as the regular ivermectin if she has a heavy load of worms.
If you can break the flock into two parts (separate housing), treat half the flock, and once they are past the withdrawal time, treat the other half. Don;t forget to completely change all bedding for the treated birds.
I suggest that you take your one bird that you are concerned with and bathe her in dog flea/tick shampoo. Follow the directions on the package, but generally you need to leave the shampoo on the bird for about 10 minutes. When you go back to rinse her, you will probably find out how backly infected she was as the dead mites will have dropped on onto the tub or sink floor. Then worm her with eprinex (for zero withdrawal time) or with regular ivermectin or piperazine. Ivermectin works best, but if she has a heavy load of worms, a complete worming can be dangerous for her--better to do a layered approach of piperazine, followed a couple of weeks later with ivermctin. Note: the eprinex carries the same risk as the regular ivermectin if she has a heavy load of worms.
If you can break the flock into two parts (separate housing), treat half the flock, and once they are past the withdrawal time, treat the other half. Don;t forget to completely change all bedding for the treated birds.