Natural pest control: letting predators do the work
Launch library · evergreen read

Natural pest control relies on encouraging or introducing a pest's natural predators, ladybirds against aphids, particular birds against caterpillars, rather than reaching directly for a chemical spray, working with an ecosystem's existing balance instead of overriding it with an external intervention each time a problem appears.
The approach generally takes longer to show results than a chemical spray, since a predator population needs time to establish and respond to a growing pest population, but it tends to be more stable over the long run, since predator numbers naturally rise and fall in step with the pest they are controlling.
A garden or farm that supports natural predators, through diverse planting and avoiding broad-spectrum chemical use, often finds pest problems become self-limiting over time, requiring less and less direct intervention as the underlying ecological balance has a chance to properly establish itself. The reward here tends to arrive later than the effort that produced it.