Which of the following is proven to be an effective biocontrol agent?

Why is $Trichoderma$ fungus used?

In a type of organism,the use of its physiological processes or traits to suppress the reproduction of another organism or to destroy it is known as what?

The first bioherbicide developed in $1981$ was based on:

Which insect was used to check the spread of cacti?

Biopesticides include