Journal of Plant Diseases and Protection (2016) 123, 59-64

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Hanen Boukedi, Slim Tounsi and Lobna Abdelkefi-Mesrati (2016)
Abiotic factors affecting the larvicidal activity of the Bacillus thuringiensis Vip3Aa16 toxin against the lepidopteran pest Ephestia kuehniella
Journal of Plant Diseases and Protection 123 (2), 59-64
Abstract: BUPM95 is a Bacillus thuringiensis subsp. kurstaki strain producing the Vip3Aa16 protoxin with an interesting insecticidal activity against the lepidopteran pest Ephestia kuehniella. The LC50 of Vip3Aa16 protoxin against first instar larvae of E. kuehniella (Lepidoptera: Pyralidae) was 31.36 ng/cm2 5 days post-treatment at 28 °C. Interestingly, this B. thuringiensis protoxin could relatively withstand environmental stresses such as extreme pH, temperature and UV radiations. Its larvicidal potency was also resistant to proteases action. These properties could be exploited for the formulation of a novel B. thuringiensis insecticide for effective biocontrol of undesirable lepidopteran larvae.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Slim Tounsi

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Bacillus thuringiensis Vip-toxins (entomopathogen)