The insecticide grade DE is manufactured using a special process and is usually from different mines than food or other grades of diatomaceous earth. Food grade DE will come from specific mines that do not contain elements such as arsenic and quartz, so it is essentially the "purest" form of diatomaceous earth. Some insecticide DE products will be from food grade mines, although you should not assume this is true with all DE products.
MotherEarth D - Diatomaceous Earth is not labeled to treat of Noseeums. Talstar P is good general insecticide that is labeled for Noseeums. You will spray along the baseboards and cracks and crevice in the area affected inside the home, this will last 90 days. You will want to treat outdoors as well as a perimeter spray. Treat around the window seals, doors, etc. in places where they could possibly come in. This wil last 30 days outdoors. Here is the link for the product:
http://www.domyownpestcontrol.com/talstar-talstar-one-p-97.html
MotherEarth D - Diatomaceous Earth would not work as an animal repellent. We would suggest using a product such as Shake-Away Fox Urine Granules Critter Repellent to deter animals like opossums and groundhogs.
Yes, after 3 wash cycles the MotherEarth D - Diatomaceous Earth residue should be gone from the bedding.
We do not have any products that are directly labeled for birdmites but MotherEarth users have reported back with positive results. Here is the general treatments most folks try if they find they have bird mites in their homes:
For treatment in the home we recommend you frequently vacuum all carpet and upholstery and dispose of the bag or vacuum contents in a sealed bag outdoors. Spray Sterifab on couches, chairs and other upholstered furniture where you may spend time resting. Use MotherEarth Dust in all cracks and crevices around the perimeter of the room. Apply a thin coat of MotherEarth dust to rugs and carpets. Rake (not sweep) nap back and forth, causing dust to enter rug or carpet. Let product sit overnight. Repeat application as necessary and vacuum every 3 - 4 days for effective control. MotherEarth dust does not have a fast knockdown, it can take several days for insects to die after they contact the dust. Onslaught can be used for a faster knockdown. Thoroughly apply as a fine particle broadcast spray using a hand pump sprayer to infested rugs and carpets and other cracks and crevices around the perimeter of each room. Put all clothes through the dryer on high heat to help kill mites and their eggs. We have had many customers use the above recommendations with great success. Most customers report that it can take several months to get rid of all of the mites. Finding and removing the source of the infestation is very important and is the key to getting rid of the mites for good.
MotherEarth D or other Diatomaceous Earth products should not be used on clothing or similar personal items. This dust is a dessicant and would actually cause skin irritation with any prolonged contact. Clothing can be treated for any pest in a washer and dryer, or by dry cleaning or steam cleaning.
MotherEarth D - Diatomaceous Earth is only effective when dry but it can become wet and will continue to function as it did before once it has dried out. For preservation information, please contact the manufacturer directly at 800-777-8570.