• Publications
  • Influence
Evolution of Resistance to Bacillus Thuringiensis
TLDR
Scientists in industry, government, and academia now recognize evolution of resistance to Bt in pests as the greatest threat to the continued success of Bt. Expand
Fitness costs of insect resistance to Bacillus thuringiensis.
TLDR
Modeling results show that fitness costs can delay resistance by selecting against Bt-resistant genotypes in refuges where insects are not exposed to Bt toxins, andRefuges designed to increase the dominance or magnitude of fitness costs could be especially useful for delaying pest resistance. Expand
Insect resistance to Bt crops: evidence versus theory
TLDR
Analysis of more than a decade of global monitoring data reveals that the frequency of resistance alleles has increased substantially in some field populations of Helicoverpa zea, but not in five other major pests in Australia, China, Spain and the United States. Expand
Field-Evolved Insect Resistance to Bt Crops: Definition, Theory, and Data
TLDR
Field outcomes are consistent with predictions from theory, suggesting that factors delaying resistance include recessive inheritance of resistance, abundant refuges of non-Bt host plants, and two-toxin Bt crops deployed separately from one-t toxin BT crops. Expand
Insect resistance to Bt crops: lessons from the first billion acres
TLDR
Field outcomes support theoretical predictions that factors delaying resistance include recessive inheritance of resistance, low initial frequency of resistance alleles, abundant refuges of non-Bt host plants and two-toxin Bt crops deployed separately from one-t toxin BT crops. Expand
Insect Resistance to Transgenic Bt Crops: Lessons from the Laboratory and Field
TLDR
The success of Bt crops exceeds expectations of many, but does not preclude resistance problems in the future, and violations of key assumptions of the refuge strategy (low resistance allele frequency and recessive inheritance) may occur in some cases. Expand
Evaluation of synergism among Bacillus thuringiensis toxins.
  • B. Tabashnik
  • Biology, Medicine
  • Applied and environmental microbiology
  • 1 October 1992
A simple test for synergism among toxins is described and applied to previously reported data on independent and joint toxicities of insecticidal proteins from Bacillus thuringiensis. The analysisExpand
Field Development of Resistance to Bacillus thuringiensis in Diamondback Moth (Lepidoptera: Plutellidae)
TLDR
The results suggest that the potential for resistance development in pest populations is an important consideration for deployment of B. thuringiensis toxin genes in genetically-engineered crop plants and use in related tactics. Expand
Determining the mode of inheritance of pesticide resistance with backcross experiments.
  • B. Tabashnik
  • Biology, Medicine
  • Journal of economic entomology
  • 1 June 1991
TLDR
The power of the standard backcross method to correctly reject the null hypothesis of monogenic inheritance increased as number of loci, slope of parental dose-mortality lines, magnitude of resistance, and sample size increased. Expand
Resistance Risk Assessment: Realized Heritability of Resistance to Bacillus thuringiensis in Diamondback Moth (Lepidoptera: Plutellidae), Tobacco Budworm (Lepidoptera: Noctuidae), and Colorado Potato
TLDR
A new method for estimating realized heritability of resistance to insecticides from laboratory selection experiments is described, which can improve evaluation of results from selection experiments and may enhance their integration into systems of resistance risk assessment. Expand
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