Find the correct option with respect to bioherbicide.

Which of the following insects is controlled by the sterile insect technique?

The utility of a microorganism like $Trichoderma$ $harzianum$ has been proven in which of the following?

Which fish is useful for the biological control of mosquitoes?

Given below are two statements.
Statement $I$: Baculoviruses are pathogens that attack nematodes.
Statement $II$: Baculoviruses are used as biological control agents in ecologically sensitive areas as they are species-specific in their action.
In the light of the above statements, choose the correct answer from the options given below.

Which of the following fish is a natural predator of mosquito larvae?