TechNotes Tips - 05.30.02

Pinhead size red mites are invading homes throughout the Midwest. These small “red dots” are either clover mites or Balaustium mites. In either case they live outdoor feeding on various plants (clover mites) or in the case of Balaustium mites predators of other insects in mulch. Clover mites are sensitive to temperature. As temperatures rise this spring they tend to move up the sides of houses (south and southwest facing walls) and into homes. Clover mites do not bite, transmit diseases or feed on food in the house. Control is best achieved through spraying an insecticide (check label) along the foundation to the point of runoff.

Spurge and knotweed are germinating in cracks along sidewalks, patios (especially brick), and driveways. The warmer temperature associated with these environments is encouraging germination. Using the appearance of these weeds in cement areas, germination in lawns is not far away for many areas in the Midwest.