This is a template of sorts...

Barriers

Barriers prevent the pest from reaching the plant. It is mostly installed by pest control professionals. Termite treatment barrier is the most common form of pest barrier according to www.suburbanpest.com.au.

Repellents

Repellents are chemicals (or plants containing those chemicals) that make the pest avoid the plant.

Physical removal

Physical removal means removing the pests by hand, crushing them, blasting them with water, vacuuming them up, etc.

Trap crops

Trap crops are plants that the pest prefers over the plants you are trying to protect.

Poisons

Poisons are chemicals that kill the pest. Most poisons are specific.

Microbials

Predators