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Clover Seed- Spider Mite Reference Page

Common and scientific names:   Twospotted spider mite (Tetranychus urticae)

Strawberry spider mite (T. turkestani)

Pest description and crop damage: Pests are not insects but tiny eight-legged animals less than 0.03 inch long.  Only heavy infestations justify control in clover seed fields.

 Management – chemical control

1.      propargite at 1.6 to 2.45 lb ai/ac (comite at 2 to 3 pt/ac).  Do not feed treated clover foliage, trash, or seed screenings to livestock.  Do not graze treated fields.  Processed seed must be labeled Not for human or animal consumption.  24c SLN ID-770005, WA-770012, OR-770013.

2.      bifenthrin at 0.06 to 0.1 lb ai/ac (Captue 2 EC at 3.8 to 6.4 oz/ac).  Do not apply while bees are present.  Do not make more than three applications in a crop year.  Maintain at least 21 days between treatments.  Do not graze clover after application.  Do not cut treated clover for hay or for forage.  Processed seed must be labeled Not for human or animal consumption.  24c SLN Oregon OR-960021, Idaho ID-900006.

  Source: 2002 Pacific Northwest Insect Management Handbook.

Integrated Pest Management Information:

Insect Control Recommendations for Producing Clover Seed In Idaho

Updated May 23, 2002-jn