Answer: False
Step-by-step explanation:
Biological pest control method can replace the chemical pest control methods. It is effective in the same way as like that of the chemical methods.
The biological pest control methods are very conventional and does not harm the plants in any way.
It also does not enters the food chain in order to affect the other organism unlike chemical pesticides.
They are not made of chemicals, they are made by herbal plants which has the ability to kill small insects and pests. Spraying the solution made of herbal plants can also be a source of supplement to the plants.
So, the given statement is false, the biological pest control methods can replace chemical pest control methods.