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Insects 2016, 7(4), 57; doi:10.3390/insects7040057

Susceptibility of Bemisia tabaci MEAM1 (Hemiptera: Aleyrodidae) to Imidacloprid, Thiamethoxam, Dinotefuran and Flupyradifurone in South Florida

1
Gulf Coast Research and Education Center, University of Florida, Wimauma, FL 33598, USA
2
School of Sciences, Saint Francis University, Loretto, PA 15940, USA
3
USDA-ARS, Fort Pierce, FL 34945, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Jeff Davis, Michael J. Stout, Rodrigo Diaz and Julien M. Beuzelin
Received: 2 August 2016 / Revised: 14 October 2016 / Accepted: 18 October 2016 / Published: 20 October 2016
(This article belongs to the Collection Integrated Pest Management)
View Full-Text   |   Download PDF [677 KB, uploaded 20 October 2016]   |  

Abstract

Populations of Bemisa tabaci MEAM1 were established from nineteen locations in south Florida, primarily from commercial tomato fields, and were tested using a cotton leaf petiole systemic uptake method for susceptibility to the nicotinic acetylcholine agonist insecticides imidacloprid, thiamethoxam, dinotefuran and flupyradifurone. Eleven populations produced LC50s for one or more chemicals that were not significantly different from the susceptible laboratory colony based on overlapping fiducial limits, indicating some degree of susceptibility. LC50s more than a 100-fold the laboratory colony were measured in at least one population for each material tested, indicating tolerance. LC50s (ppm) from field populations ranged from 0.901–24.952 for imidacloprid, 0.965–24.430 for thiamethoxam, 0.043–3.350 for dinotefuran and 0.011–1.471 for flupyradifurone. Based on overlapping fiducial limits, there were no significant differences in relative mean potency estimates for flupyradifurone and dinotefuran in relation to imidacloprid and thiamethoxam. View Full-Text
Keywords: insecticide resistance; neonicotinoid insecticides; butenolide insecticides insecticide resistance; neonicotinoid insecticides; butenolide insecticides
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Smith, H.A.; Nagle, C.A.; MacVean, C.A.; McKenzie, C.L. Susceptibility of Bemisia tabaci MEAM1 (Hemiptera: Aleyrodidae) to Imidacloprid, Thiamethoxam, Dinotefuran and Flupyradifurone in South Florida. Insects 2016, 7, 57.

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