Phytoseiid Mites on Peppermint and Effectiveness of Neoseiulus fallacis to Control Tetranychus urticae (Acari: Phytoseiidae, Tetranychidae) in Arid Growing Regions

Authors: Morris, M. A.; Berry, R. E.; Croft, B. A.

Source: Journal of Economic Entomology, Volume 92, Number 5, October 1999 , pp. 1072-1078(7)

Publisher: Entomological Society of America

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The humid-adapted species Neoseiulus fallacis (Garman) was the most common phytoseiid mite collected in either humid (>100 cm annual rainfall) or arid (20–45 cm annual rainfall) mint growing regions of Washington, Oregon, Montana, Idaho, and California during 1991–1995. In experimental field plots, this predator gave excellent biological control of Tetranychus urticae Koch on mint grown under arid conditions in central Oregon when evaluated by an insecticide check method or by the caging of mites. N. fallacis is effective as a predator in arid areas probably because regular irrigation creates a humid environment in the canopy. The selective miticide propargite, when used in combination with predators, was effective at reducing high spider mite populations to below the treatment threshold faster than did N. fallacis alone.

Keywords: Mentha piperita; biological control; inoculative release; propargite

Document Type: Research Article

Publication date: October 1, 1999

More about this publication?
  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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