scholarly journals Lack of Fitness Costs of Insecticide Resistance in the Western Flower Thrips (Thysanoptera: Thripidae)

2008 ◽  
Vol 101 (2) ◽  
pp. 499-503 ◽  
Author(s):  
P. Bielza ◽  
V. Quinto ◽  
C. Gravalos ◽  
J. Abellan ◽  
E. Fernandez
1995 ◽  
pp. 341-346 ◽  
Author(s):  
Karen L. Robb ◽  
Julie Newman ◽  
Judy K. Virzi ◽  
Michael P. Parrella

2005 ◽  
Vol 61 (10) ◽  
pp. 1009-1015 ◽  
Author(s):  
Pedro J Espinosa ◽  
Josefina Contreras ◽  
Vicente Quinto ◽  
Carolina Grávalos ◽  
Esther Fernández ◽  
...  

2010 ◽  
Vol 103 (6) ◽  
pp. 2164-2168 ◽  
Author(s):  
J. Contreras ◽  
P. J. Espinosa ◽  
V. Quinto ◽  
J. Abellán ◽  
C. Grávalos ◽  
...  

1995 ◽  
Vol 88 (5) ◽  
pp. 1164-1170 ◽  
Author(s):  
Guangyu Zhao ◽  
Wei Liu ◽  
John M. Brown ◽  
Charles O. Knowles

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1112c-1112
Author(s):  
John M. Brown ◽  
Alan A. Schreiber ◽  
Charles O. Knowles

Control failures of many insecticides used against the western flower thrips (WFT), Frankiniella occidentalis (Pergande), have been reported from several locations by greenhouse operators. To document resistance, thrips were bioassayed by placing them in vials coated with doses of diazinon, methomyl, bendiocarb, dimethoate, azinphosmethyl and cypermethrin at (100, 50, 10, 5, 1, 0.5 and 0.1 g/vial). Adult female WFT were collected from a colony exhibiting control failures using organophosphate, carbamate and pyrethroid insecticides. A colony showing no resistance was used as a control. The LC50's of the resistant and susceptible strains were diazinon 49.3 and 4.6 g/vial, cypermethrin no mortality and 3.7 g/vial, and azinphosmethyl 20.2 and 2.l g/vial respectively. Results show resistance is present as well as cross resistance to diazinon and cypermethrin because the resistant population was never exposed to these compounds.


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