Journal of Economic Entomology (2009) 102, 388-392

Darryl Ramoutar, Steven R. Alm and Richard S. Cowles (2009)
Pyrethroid resistance in populations of Listronotus maculicollis (Coleoptera: Curculionidae) from southern New England golf courses
Journal of Economic Entomology 102 (1), 388-392
Abstract: Topical application bioassays of bifenthrin and lambda-cyhalothrin were conducted on field-collected populations of Listronotus maculicollis Kirby (Coleoptera: Curculionidae) from eight southern New England golf courses, six in Connecticut, one in Massachusetts, and one in Rhode Island. Concentrations versus mortality regression lines were estimated to compare the LD₅₀ values and resistance ratios for each insecticide and each population. The LD₅₀ ranges for bifenthrin and lambda-cyhalothrin were 1.80-244.67 ng per insect and 0.52-159.53 ng per insect, respectively. The field-collected strains showed low to high levels of resistance to bifenthrin (6.1-135.9-fold) and lambda-cyhalothrin (28.7-306.8-fold). This is the first report of insecticide resistance in this species. The loss of pyrethroid efficacy is making control of Listronotus maculicollis more challenging.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Darryl Ramoutar, Richard S. Cowles

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.
	Listronotus maculicollis	Grasses/turf/rangeland	U.S.A. (NE)