Login | Create Account (DAF staff only)

Dosage consistency is the key factor in avoiding evolution of resistance to phosphine and population increase in stored-grain pests

Shi, Mingren and Collins, Patrick J. and Ridsdill-Smith, T. James and Emery, Robert N. and Renton, Michael (2013) Dosage consistency is the key factor in avoiding evolution of resistance to phosphine and population increase in stored-grain pests. Pest Management Science, 69 (9). pp. 1049-1060. ISSN 1526-4998

Full text not currently attached. Access may be available via the Publisher's website or OpenAccess link.

Article Link(s): http://dx.doi.org/10.1002/ps.3457

Abstract

BACKGROUND Control of pests in stored grain and the evolution of resistance to pesticides are serious problems worldwide. A stochastic individual-based two-locus model was used to investigate the impact of two important issues, the consistency of pesticide dosage through the storage facility and the immigration rate of the adult pest, on overall population control and avoidance of evolution of resistance to the fumigant phosphine in an important pest of stored grain, the lesser grain borer. RESULTS A very consistent dosage maintained good control for all immigration rates, while an inconsistent dosage failed to maintain control in all cases. At intermediate dosage consistency, immigration rate became a critical factor in whether control was maintained or resistance emerged. CONCLUSION Achieving a consistent fumigant dosage is a key factor in avoiding evolution of resistance to phosphine and maintaining control of populations of stored-grain pests; when the dosage achieved is very inconsistent, there is likely to be a problem regardless of immigration rate. © 2012 Society of Chemical Industry

Item Type:Article
Business groups:Horticulture and Forestry Science
Keywords:dosage consistency immigration rate phosphine resistance lesser grain borer individual-based two-locus
Subjects:Plant culture > Field crops > Grain. Cereals
Plant pests and diseases > Pest control and treatment of diseases. Plant protection > Pesticides
Science > Entomology
Deposited On:04 Sep 2013 01:17
Last Modified:04 Sep 2013 01:17

Repository Staff Only: item control page