scholarly journals Corrigendum to: “Compatibility of Bifenazate and the Phytoseiulus persimilis (Acari: Phytoseiidae), for Management of Twospotted Spider Mites (Acari: Tetranychidae) in North Carolina Staked Tomatoes”

2020 ◽  
Vol 113 (6) ◽  
pp. 3035-3035
Keyword(s):  
North Carolina ◽  
Phytoseiulus Persimilis ◽  
Spider Mites ◽  
Twospotted Spider

Compatibility of Bifenazate and Phytoseiulus persimilis for Management of Twospotted Spider Mites in North Carolina Staked Tomatoes

2020 ◽  
Vol 113 (5) ◽  
pp. 2096-2103
Author(s):  
Tom R Bilbo ◽  
James F Walgenbach
Keyword(s):  
North Carolina ◽  
Spider Mite ◽  
Field Experiments ◽  
Phytoseiulus Persimilis ◽  
Vegetable Crops ◽  
Effective Management ◽  
Southeast United States ◽  
Small Plot ◽  
Tetranychus Urticae Koch ◽  
Twospotted Spider

Abstract The twospotted spider mite (TSSM, Tetranychus urticae Koch) is a key pest of tomatoes (Solanum lycopersicon L. [Solanales: Solanaceae]) in North Carolina, and its management has relied principally on synthetic acaricides. Augmentative biological control of TSSM is a commonplace and effective management strategy in greenhouses worldwide, but in field-grown vegetable crops biocontrol of TSSM is poorly developed. We conducted small-plot field experiments in 2016 and 2019 to test the ability of the predatory mite, Phytoseiulus persimilis Athias-Henriot, to establish, disperse, and reduce TSSM in staked tomatoes, as well as test their compatibility with a commonly used reduced-risk acaricide, bifenazate (Acramite). Across both years, the most effective treatment for reducing TSSM was the combination of P. persimilis + Acramite. Phytoseiulus persimilis successfully established both years, but its population growth and dispersal were greater in 2016 than 2019. Acramite alone significantly reduced TSSM pressure in 2019 and P. persimilis alone did not reduce TSSM pressure below the control in either year. However, results in 2016 were influenced by the eventual dispersal of P. persimilis into all experimental plots, despite efforts to hinder their movement with corn barriers. Results in 2019 were influenced by the late-season invasion of TSSM into the trial, which delayed P. persimilis releases and influenced their establishment and growth. This study is the first to demonstrate the utility and limitations of P. persimilis in staked field tomatoes, which is a promising option for growers to manage TSSM in tomatoes in the southeast United States.

Pharmacokinetics of pyrethroids in twospotted spider mites

1985 ◽  
Vol 24 (3) ◽  
pp. 326-335 ◽  
Author(s):  
Michael J. McKee ◽  
Charles O. Knowles
Keyword(s):  
Spider Mites ◽  
Twospotted Spider
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