Skip Navigation

Alphabetical List of Critters - European Red Mite

The European Red Mite, Panonychus ulmi, is a species of introduced spider mite that, due to its high fecundity and short generation time, is regarded as a major agricultural pest of fruit trees, grapes, and some berries, but it has an extremely wide host range of well over 100 species of plants, and is cosmopolitan in its distribution.  Some apple cultivars, such as ‘Red Delicious’ and ‘Braeburn’, are particularly likely to experience problems with this mite (in other words, high populations and damage levels).  Hot, dry and dusty conditions favor the buildup of this mite and other spider mite populations. Scroll down for some detailed fact sheet choices, two of which include photos of this mite.

**** IMPORTANT NOTICE **** [en español]
Pesticide registration status is subject to change and varies from state to state; therefore the University of Maine Cooperative Extension cannot assume liability for any recommendations made on non-University of Maine websites that we are linking to. It is the responsibility of the applicator to verify the Maine registration status of any pesticide BEFORE applying it. THE LABEL IS THE LAW! The Maine Board of Pesticides Control (Maine BPC) recommends that you check with your dealer for the Maine registration status of any pesticide, and that you always check and follow your label! You can also call and ask the Maine BPC: (207) 287-2731 or, if you like, visit them online at:

We are linking to the following web sites (below) purely for educational purposes. No responsibility is assumed for any problems associated with the use of products or services mentioned at the sites. No endorsement of products or companies is intended, nor is criticism of unnamed products or companies implied.

Detailed Fact Sheets:


Back to Alphabetical List of Critters

cartoon bug reporter