VEGtools.ca

Tomato Diseases & Pests


Two Spotted Spider Mites

Pest Pest

Two-spotted spider mites attack broad range of crops, including fruit crops, vegetable crops, field crops and many grassy and broadleaf weeds. The mites overwinter as adult females in protected areas such as plant debris in hedge rows, fence rows and fields with heavy trash. In tomatoes, this pest feeds initially in foliage, causing yellowing or bronzing and substantial defoliation at later stages.

There can be 10 to 15 generations per season. It has five developmental stages: a clear round egg; a larval stage with three pairs of legs; two nymphal stages; and an adult stage with four pairs of legs. Adults are extremely small and barely visible to the naked eye. They produce webbing that gives the underside of an infested leaf has a sandblasted appearance.

Large Image
Two Spotted Spider Mite
Source: Frank Peairs, Colorado State University, Bugwood.org
Large Image
Two Spotted Spider Mite
Source: Eugene E. Nelson, Bugwood.org

** Site-specific GDD-based scouting advisory and models are available to registered users. Registration is FREE.