Monday, 15 November 2004 - 8:42 AM
0093

Control of twospotted spider mites on strawberry in North Florida with predatory mites and Acramite®

Elena M. Rhodes, erhodes@ufl.edu and Oscar E. Liburd, oeliburd@mail.ifas.ufl.edu. University of Florida, Entomology & Nematology Department, Natural Area Drive, Building 970, Gainesville, Florida

Field and laboratory experiments were conducted during 2003 and 2004 to determine the effectiveness of 2 predatory mite species, Phytoseiulus persimilis Athias-Henriot and Neoseiulus californicus McGregor, and a reduced-risk miticide, Acramite 50WP®, for control of twospotted spider mite (TSSM) (Tetranychus urticae Koch) in North Florida strawberry fields. In field studies N. californicus significantly reduced populations of TSSM below numbers recorded in untreated (control) and P. persimilis plots. Acramite was also effective, significantly reducing TSSM populations. Similar trends were seen in laboratory experiments. The results advocate the use of N. californicus and Acramite 50WP® in strawberry fields in north-central Florida.


Species 1: Acari Tetranychidae Tetranychus urticae (twospotted spider mite)
Species 2: Acari Phytoseiidae Phytoseiulus persimilis
Species 3: Acari Phytoseiidae Neoseiulus californicus
Keywords: strawberry, control

[ Recorded presentation ] Recorded presentation

See more of Student Competition for the President's Prize, Section Ca4. Biological Control, Cd1. Behavior and Ecology, Ea1. Extension, and F1. Crop Protection Entomology
See more of Student Competition TMP

See more of The 2004 ESA Annual Meeting and Exhibition