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Tomato hornworms, Manduca quinquemaculata, are large green caterpillars that devour tomato plants along with other nightshades including peppers, potatoes, and eggplant. They can also be a little ...

You may have heard that planting basil near your tomatoes can boost flavor or that marigolds help keep pests at bay. That’s no garden myth—it’s part of a time-tested practice called companion planting ...