Neotropical Entomology (2010) 39, 430-435

Aidee Campuzano-Martínez, J. Concepcion Rodríguez-Maciel, Ángel Lagunes-Tejeda, Celina Llanderal-Cázares, Antonio P. Terán-Vargas, Jorge Vera-Graziano, Humberto Vaquera-Huerta and Gonzalo Silva-Aguayo (2010)
Aptitud biológica de poblaciones de Bemisia tabaci (Gennadius) Biotipo B (Hemiptera: Aleyrodidae) con diferente susceptibilidad al insecticida thiametoxam
[Fitness of Bemisia tabaci (Gennadius) B Biotype (Hemiptera: Aleyrodidae) populations with different levels of susceptibility to the thiametoxam insecticide]
Neotropical Entomology 39 (3), 430-435
Abstract: In two field-collected populations of de Bemisia tabaci (Gennadius) B biotype previously selected with the neonicotinoid insecticide thiamethoxam (NEO-R, NEO-N), and a population susceptible to insecticides (SUSC), the level of response to the insecticide thiametoxam, as well as the life and fertility tables were determined. At LC₉₅, the NEO-R population showed a resistance ratio (RR₉₅) value of 8.8-fold, an intrinsic rate of increase (r_m) of 0.72. The fitness of the NEO-R and NEO-N populations in relation to the SUSC was 1.5 and 2.0, respectively. The RR₉₅ value for NEO-N was 1.9-fold; it's r_m value was 0.082, while in the SUSC population was 0.041. The developmental time of egg and adult were longer in NEO-R population, while the nymph and pupa lasted longer in the NEO-N and SUSC populations. The developmental time was different in the three NEO-R, NEO-N, and SUSC populations with 19.7 d (315.84 degree days or dd), 15.7 d (250.4 dd) and 18.5 d (296.6 d), respectively. The populations previously selected with thiamethoxam did not reproduce faster than their susceptible counterpart.
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(original language: Spanish)
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Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Bemisia tabaci biotype MEAM1		Mexico