Pest & Disease Controls

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Organic Gardening Pest & Disease Controls

Organic pest and disease control methods protect plants without harmful chemicals. By embracing natural and environmentally friendly techniques, gardeners can support a healthy, sustainable ecosystem. 

 

Holistic integrated pest management strategies promote biodiversity and encourage beneficials such as ladybugs and predatory beetles, which naturally reduce other insect pest populations. Hand-picking and companion planting—intentionally growing repellent plants like marigolds or garlic near others—can also keep pests at bay. Made from the mineral remains of single-cell aquatic plants, diatomaceous earth is yet another effective tool for combatting unwanted insects. Meanwhile, physical barriers and nettings help deter animals and birds.

 

Natural fungicides such as neem oil and copper-based treatments can be used to address and prevent disease in the garden. Proper plant spacing, pruning, and regular crop rotation improve air circulation and soil health—thus reducing the likelihood of fungal infections and other diseases. Mulching also helps maintain soil health and moisture while preventing weeds that can harbor pests. Healthy, well-maintained soil is the cornerstone of organic gardening, as strong plants are more resilient to both pests and disease.

Featured Pest Control Bestsellers

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Pest & Disease Control FAQs

  1. What are common garden pests and plant diseases?
    • Common garden insect pests include caterpillars (i.e., Tomato Horn Worm), beetles (i.e., Colorado Potato Beetle), borers (i.e. Squash Vine Borer), grasshoppers, and more. Common animal pests include deer and rabbits, and you may encounter bird damage as well. Common plant diseases include powdery mildew, black spot, and botrytis blight. Refer to our handy Pest & Disease Encyclopedia to learn more.
  2. Do garden favorites like azaleas, lilacs, peonies, roses, and hydrangea need pest and disease control?
    • Azaleas, lilacs, peonies, roses, and hydrangeas can all need pest or disease controls at times. Pests these plants may encounter include aphids, Japanese beetles, spider mites, and scale insects—and diseases like powdery mildew, black spot, and botrytis blight can also affect them. Control methods include hand-picking, using insecticidal soap, neem oil, organic pest sprays, or fungicides, and removing infected material. Regular inspection, proper watering techniques, pruning, and soil care also reduce pest issues and promote disease resistance.
  3. What’s the best garden pest control method?
    • Effective garden pest control includes using beneficials that naturally prey on pests. For soft-bodied insects, neem oil and insecticidal soaps are safe, organic options. Slug control can be achieved with beer traps or copper strips. Diatomaceous earth also stops bugs through abrasion and dehydration. Companion planting makes use of repellant cultivars to deter specific pests, and organic sprays like garlic or hot pepper can help as well. Barriers, row covers, and netting prevent animal and bird access. Finally, practice crop rotation and proper watering techniques to help maintain soil and plant health.
  4. What’s the best plant disease control method?
    • Prevention is the best medicine! Choose disease-resistant cultivars and implement proper plant spacing and watering practices. Regular pruning, crop rotation, and soil regeneration also help prevent disease. Use organic fungicides like neem oil or copper-based products, and apply biological controls such as beneficial microbes. Monitor plants for early signs of disease and remove infected leaves.