Florida Entomologist (2003) 86, 222-224

Dakshina R. Seal and Gary L. Leibee (2003)
Toxicity of Bacillus thuringiensis Cry1-type insecticidal toxin to geographically distant populations of tomato pinworm
Florida Entomologist 86 (2), 222-224
Abstract: The susceptibilities of nine geographically distant populations of tomato pinworm, Keiferia lycopersicella (Walsingham), to Cry1-A protein produced by Bacillus thuringiensis var. kurstaki are presented. LC₅₀ values were similar with a difference of 3-fold. The slope values for different populations varied significantly, indicating a variability in the susceptibility among the populations to the Cry1-A. This information will establish a basis for selecting a proper concentration of B. thuringiensis toxin to be used for the control of this economically important pest on tomato genetically engineered for resistance to this pest. The results also provide baseline data for monitoring resistance.
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Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Keiferia lycopersicella
Bacillus thuringiensis var. kurstaki (entomopathogen)	Keiferia lycopersicella
Bacillus thuringiensis Cry1A-toxin (entomopathogen)	Keiferia lycopersicella