State a approach different from that of conventional pest control methods to control pests

this is a method of birth control

one of the legal method of birth control is

How are pests controlled in a crop field?

Describe biological method of pest control.

Explain : Surgical methods of birth control

Describe the various methods of birh control.

How is the variability in oxidation states of transition metals different from that of the non transition metals? Illustrate with examples.