HortScience (1995) 30, 1268-1270

J.F. Karlik, P.B. Goodell and G.W. Osteen (1995)
Sampling and treatment thresholds for spider mite management in field-grown rose plants
HortScience 30 (6), 1268-1270
Abstract: Spider mites [including Tetranychus pacificus McGregor (Pacific mite) and T. turkestani Ugarov and Nikolski (strawberry mite)] are the most important invertebrate pests of the roses (Rosa hybrida) grown in Kern County, Calif. (the major production area in the United States). However, sampling methods and treatment thresholds have been subjective. A rapid presence-absence field sampling method has been developed, and treatment thresholds for mites have been evaluated based on the method. Roses exhibit a higher tolerance for spider mite populations than previously thought.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Peter B. Goodell

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tetranychus pacificus	Rosa (crop)	U.S.A. (SW)
	Tetranychus turkestani	Rosa (crop)	U.S.A. (SW)