Generate a full detail guide on natural and organic pest control methods. The guide should be a practical resource for avoiding chemical pesticides. It must include detailed instructions for: 1. Using insecticidal soap. 2. Introducing beneficial insects like ladybugs. 3. The principles of companion planting to deter pests. 4. Using physical barriers like row covers. 5. A simple recipe for a DIY pest spray. 6. A section on identifying common pests. Please include a supportive disclaimer.