BELOW LEFT: Tobacco caterpillar (Spodoptera litura), a lepidopteran against which the Bt toxin in Bollgard is not effective.
BELOW RIGHT: Whiteflies, against which no Bt toxins are effective. Whiteflies are actually attracted by some pesticides.
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LEFT: The mis-named "American Bollworm" (Helicoverpa ameriga, actually an Old World species), against which Bt-derived toxins are highly effective.
BELOW LEFT: Tobacco caterpillar (Spodoptera litura), a lepidopteran against which the Bt toxin in Bollgard is not effective. BELOW RIGHT: Whiteflies, against which no Bt toxins are effective. Whiteflies are actually attracted by some pesticides. |
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