Journal of Pest Science (2011) 84, 61-67
Christos G. Athanassiou, Frank H. Arthur, Nickolas G. Kavallieratos and James E. Throne (2011)
Efficacy of spinosad and methoprene, applied alone or in combination, against six stored-product insect species
Journal of Pest Science 84 (1), 61-67
Abstract: Efficacy of the insecticides spinosad and methoprene, applied alone or in combination to wheat, was evaluated against six stored-product insect species, Rhyzopertha dominica, Sitophilus oryzae, S. granarius, Cryptolestes ferrugineus, Oryzaephilus surinamensis, and Liposcelis bostrychophila. The concentrations of the insecticides were 0.1 and 0.5 ppm for spinosad and 1 and 5 ppm for methoprene. Parental mortality of R. dominica was 100% on wheat treated with either rate of spinosad, with no progeny production in any combination treatment. Parental mortality of S. oryzae did not exceed 62%, and progeny production was not reduced by any insecticide treatment. All S. granarius adults exposed on wheat treated with spinosad alone at 0.5 ppm were killed, but parental mortality was reduced when methoprene was added. Progeny production was reduced in treatments containing spinosad. Mortality of adult C. ferrugineus was 97% or greater in treatments containing spinosad, but adult mortality of O. surinamensis and L. bostrychophila was not reduced by insecticide treatments. The specific combinations of spinosad and methoprene evaluated in our study would have no benefit over spinosad used alone for control of any of the six species tested.
(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): Nickolas G. Kavallieratos, James E. Throne, Frank H. Arthur
Research topic(s) for pests/diseases/weeds:
control - general
Pest and/or beneficial records:
| Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
|---|---|---|---|---|
| Sitophilus granarius | ||||
| Sitophilus oryzae | ||||
| Oryzaephilus surinamensis | ||||
| Rhyzopertha dominica | ||||
| Cryptolestes ferrugineus | ||||
| Liposcelis bostrychophila |
