Yes, companion planting techniques can enhance crop yields and pest control naturally. By planting certain crops together, you can create beneficial relationships that help improve soil health, deter pests, attract beneficial insects, and increase overall productivity in the garden. Some popular companion planting combinations include planting marigolds with tomatoes to deter nematodes, planting beans with corn to provide nitrogen to the soil, and planting aromatic herbs like basil to repel pests.