Question

What is the major limitation of the dried preparation of the insecticide Bt that is produced by Bacillus thuringiensis?

1) It is not effective against all types of insects.
2) It has a short shelf life.
3) It is expensive to produce.
4) It can cause harm to non-target organisms.

Answer 1

The major limitation of the dried preparation of the insecticide Bt produced by Bacillus thuringiensis is that it is not effective against all types of insects.

Step-by-step explanation:

The major limitation of the dried preparation of the insecticide Bt produced by Bacillus thuringiensis is that it is not effective against all types of insects. While Bt toxin is toxic to many insect species, there are some insects that have developed resistance to it. This means that the dried Bt preparation may not be as effective in controlling these resistant insect populations.