Question

What plant insect pest does Bacillus thuringiensis specifically target on Brassicas and fruit trees?

Options

• Mosquito larvae

• Aphids and mites

• Butterfly caterpillars and other insect pests

• Grasshoppers and crickets

Answer 1

Bacillus thuringiensis is used against butterfly caterpillars and other insect pests. Bt spores are mixed with water and sprayed on vulnerable plants such as Brassicas and fruit trees, where the toxin kills the larvae that ingest the spores.