Managing Insecticide Resistant Tobacco Budworm

R. G. Luttrell and M. B. Layton


 
ABSTRACT

Resistance management is a critical component of cotton insect control. Specific management recommendations targeting pyrethroid resistance in the tobacco budworm (Heliothis virescens) have been developed and implemented to varying degrees over the past decade. Pyrethroids still remain as a viable option for control of tobacco budworm, but control options are becoming increasingly more limited. Detectable levels of resistance in tobacco budworm to all available classes of insecticides complicate management options. Effective management and selection of control methods have become economically critical for continued cotton production. Current management recommendations target effective within-season manipulation of tobacco budworm densities and resistance frequencies. Without effective manipulation or partitioning of the limited number of control options available, growers can experience severe crop loss in the presence of high densities of tobacco budworm. Pest managers must consider population density and resistance levels to determine the most effective control option.



Reprinted from 1995 Proceedings Beltwide Cotton Conference pp. 140 - 143
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998