However, during infestations, these mites can devour much of the food in earthworm beds, depriving worms of needed nutrients. This increases worm growers' costs and time spent feeding worms. Mite populations at high levels can also cause worms to stay deep in the beds and not come to the surface for feeding, resulting in poor growth and reproduction. The red mite is parasitic on earthworms. It can attach itself to the worm and suck its blood or body fluid.
Red mites are also capable of piercing and sucking fluids from egg capsules.
These mites first appear as small white or gray clusters, resembling mold. 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.