Fig. 1From: Toxicity evaluation of Aphidicidal crystalliferous toxins from Bacillus thuringiensis strains: a molecular studySetting up of vials for bioassay Bt spore crystal suspension against aphids. Bioassay of aphids and with Bt crystal suspension in the treatment vial and another vial was given normal water instead of Bt crystal suspension as a control for bioassayBack to article page