Thank you for getting back to me. First of all, ball pythons are notorious for going a long time (months) without food. If all conditions are right for him, and he continues to refuse to eat, you'll have to use your judgment as to when to see a reptile vet. Five weeks is nothing to worry about unless your snake develops other symptoms.
Here's a useful site on ball pythons where you can read more about their feeding habits:

http://www.anapsid.org/ball.html

Mites are one of the most difficult things to deal with in reptile-keeping. Start by soaking the affected snakes in a diluted Betadine bath. Put the snake in a container with a lid with air holes punched in it. Fill it 3/4 full of the Betadine/water solution. After the snake has been dipped, if the head was under the water, dab the eyes and heat pits with mineral oil after removing it from the bath. Check under the chin, under all the belly scutes, and in the vent folds for mites. If you find mites in these areas, you can remove them by gently rubbing them with a cotton swab dipped in mineral oil. Before putting the snake back in the cage, remove the substrate. Vacuum the inside of the enclosure thoroughly, especially in the angles of the walls. If the tank is made of wood scrape the inside angles with the edge of a knife, then vacuum again. The goal is to remove loose eggs, mites and mite feces.

If you have a glass tank, wipe all surfaces down with hot soapy water. Disinfect glass tanks by washing them down with a bleach-water solution (1/2 cup bleach per gallon of water). Let the solution sit for ten minutes, then thoroughly rinse the cage.

There is a spray that can be gotten through reptile supply companies called Provent -a -Mite, which is the most effective and safe spray to use for snakes and reptiles, but it must be used according to directions, and in conjunction with the methods above.

http://www.pro-products.com/

The room where the snakes live will also need to be cleaned well because mites wander all over. Here's where you can read more:

http://www.anapsid.org/mites.html

I know this sounds pretty overwhelming, but there is no easy way, and if the mite infestation gets heavy enough, the nasty little things can even kill your snakes.

If you would like any additional information or have more questions please don’t hesitate to ask! I wish you success.

Anna

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