Known pests, diseases and disorders include viruses, fungi, the larvae of flies, mites and nematodes. Pest control includes the management of weeds, insects, mites, and diseases. Honey bees are affected by parasites including acarine and "Varroa" mites. The infestation and subsequent parasitic disease caused by "Varroa" mites is called varroosis. It works by disrupting the function of the neurons of lice and scabies mites. The symptoms of scabies are due to an allergic reaction to the mites. LSV were detected in bees, mites and pollen. Sloths have a highly specific community of commensal beetles, mites and moths. A British beekeeper successfully developed a strain of bees that are resistant to varroa mites. Hippolyte Lucas observed scarlet acarine mites on European earwigs. There are thousands of species of mites and ticks from the subclass Acari. Insecticidal soap spray is effective against spider mites. The researchers identified "Bacillus oleronius" as distinct bacteria associated with "Demodex" mites. The predators of dust mites are other allergenic mites ("Cheyletiella"), silverfish and pseudoscorpions. Some mites, too, infest foodstuffs and other stored products.