The pest doesn’t need spraying. It needs a predator. The predator doesn’t need buying. It needs a flower.
Plant the right flower and the predator shows up on its own, finds the pest, and does the work for free. The chain assembles itself.
Five chains that work:
– Aphids → ladybug larvae → plant yarrow. The larvae do the killing — hundreds of aphids each. The yarrow keeps the adults around to lay eggs near the colony.
– Tomato hornworms → braconid wasps → let your dill bolt. The wasp lays eggs inside the hornworm. The flowers are the weapon, not the dill leaves.
– Slugs → ground beetles → let cilantro flower. The beetles hunt at night while you sleep. The flowers give them daytime shelter.
– Cabbage worms → paper wasps → plant fennel. The wasps catch caterpillars, chew them into paste, and feed them to their own larvae. One nest near your brassicas catches dozens a day.
– Whiteflies → lacewing larvae → plant cosmos. The larvae have sickle-shaped jaws that drain whiteflies in seconds. The cosmos keeps adult lacewings fed and laying eggs nearby.
One flower per pest. The predator does the rest.