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Susceptibility of Field Populations of Eggplant Fruit and Shoot Borer (Leucinodes orbonalis Guenée) to Cry1Ac, the Protein Expressed in Bt Eggplant (Solanum melongena L.) in Bangladesh

Authors
  • haider prodhan, md. zulfikar
  • shirale, dattatray k.
  • islam, md. zaherul
  • hossain, md. jahangir
  • paranjape, vijay
  • shelton, anthony m.
Publication Date
Jul 05, 2019
Source
MDPI
Keywords
Language
English
License
Green
External links

Abstract

2019 and assayed. Larvae from each population were reared to adults and allowed to mate. Eggs from the matings were allowed to hatch, and neonates were used for bioassays. Bioassays were performed with different concentrations of Cry1Ac and an untreated control. Median lethal concentrations (LC50) ranged between 0.035 and 0.358 ppm and molt inhibitory concentration (MIC50) values ranged from 0.008 to 0.181 ppm. Variation in susceptibility among field populations was 10.22-fold for LC50 and 22.63-fold for MIC50. These results were compared to values from 73 populations in India. Overall, the results showed similar natural variation and suggest that these Bangladeshi values can be used as benchmarks for resistance monitoring as Bt brinjal becomes more widely adopted in Bangladesh.

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