Oak leaf mite itch?

The oak leaf mite (Pyemotes herfsi) is a microscopic parasitic insect that has become a notable nuisance in areas where cicadas are abundant. These mites are typically harmless to humans, but under specific conditions, they can cause irritating bites.

Oak leaf mites are predators of the larvae of certain insects, including the periodical cicada. After a large brood of cicadas emerges, these mites proliferate in oak trees, where the cicada eggs are laid. The mites feed on cicada eggs by injecting a toxic saliva that paralyzes their prey. Although the mites primarily feed on cicada larvae, they sometimes end up falling from the trees and landing on humans.

When oak leaf mites come into contact with human skin, they bite, causing itchy, red welts that resemble mosquito bites. These bites can be extremely uncomfortable, with symptoms lasting for days or even weeks. The bites are most commonly found on the upper body, neck, and face, as the mites drop from trees overhead. While the mites do not burrow into the skin or transmit diseases, the irritation they cause can lead to secondary infections if scratched excessively.

Outbreaks of oak leaf mites are often correlated with periods of high cicada activity, and controlling them is challenging due to their tiny size and the difficulty of treating entire tree populations. Preventive measures include wearing protective clothing and avoiding areas with infested trees during cicada emergence seasons.

Dr. O’Connell treats oak leaf mite itch, contact us today for a telemedicine appointment and get some relief from the itch.