Magnification will reveal clusters of juvenile red mites in various stages of development. Mite Prevention Proper care of worm beds can prevent a harmful buildup of mites. Avoid excessively wet beds by adjusting watering schedules, improving drainage, and turning bedding frequently. Too much food can cause an accumulation of fermented feed in worm beds and lower the pH of the beds. Adjust feeding schedules so that all feed is consumed within a few days.
Worms consume less food in colder temperatures.
Vegetables with a high moisture content can cause high mite populations in worm beds. Limit the use of such feed, and if high mite populations are discovered, discontinue the use of this feed until mite populations are under control. Mite Removal Several methods have been suggested for removing mites from earthworm beds. Bear in mind that any type of mite removal, physical or chemical, will only be temporary unless worm-bed management is altered to make conditions less favorable for mites. Reduce the amount of water and feed.