Clover Mite & Banks Mite
Bryobia praetiosa & Oligonychus pratensis
Many species of mites are common in Colorado turf grass. Some are important in the breakdown of thatch and the recycling of nutrients. Other are important predators of pest insects and mites. Two mite species are among those that damage Colorado turf: Clover mites and Banks grass mites. The eggs of Winter Mites hatch in October, and their numbers increase into late winter. The larvae feed by gnawing the surface of the grass blades and sucking up the juicy contents. Heavy Mite populations diminish in Late Spring when eggs are laid on dead grass plants, and the adults die soon after; Adults lay their eggs as temperatures rise early – late spring.
- General thinning, in patches.
- Visible in late summer or early fall, typically concentrated in wetter areas.
- The grass blades will show small, yellow speckles. As the damage increases, the grass becomes tan in color and eventually dies.
IPM METHODS :
Control using insecticide labeled for this adult insect, as well as another labeled to target dormant eggs before they hatch. Several applications will be necessary to prevent and control (6 per year during fall, winter and early spring months)