Plant Disease Detector
Upload a photo of your plant to identify diseases and get treatment recommendations.
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Note: This tool provides general guidance based on visual symptoms. For severe plant issues, consult with a professional horticulturist or agricultural expert.
Common Plant Diseases
Learn to identify and treat common plant diseases that may affect your garden.
Tomato Late Blight
Symptoms:
Dark, water-soaked spots on leaves that quickly enlarge and turn brown. White fungal growth may appear on the undersides of leaves in humid conditions.
Treatment:
Remove and destroy infected plants. Apply copper-based fungicide to healthy plants as a preventative measure. Ensure good air circulation and avoid overhead watering.
Powdery Mildew
Symptoms:
White powdery spots on leaves, stems, and sometimes fruit. Leaves may yellow, curl, or drop prematurely.
Treatment:
Apply neem oil or potassium bicarbonate spray. Improve air circulation around plants and avoid overhead watering. Remove and destroy severely infected plants.
Cucumber Mosaic Virus
Symptoms:
Mottled yellow and green pattern on leaves. Stunted growth and deformed fruits.
Treatment:
No cure available. Remove and destroy infected plants. Control aphids which spread the virus. Plant resistant varieties.
Prevention Tips
The best way to manage plant diseases is to prevent them before they start.
Proper Watering
Water at the base of plants, not on foliage. Water in the morning so plants can dry during the day.
Good Air Circulation
Space plants properly to allow air flow. This reduces humidity and helps prevent fungal diseases.
Regular Pruning
Remove dead or diseased plant parts promptly. Sterilize tools between cuts to prevent spreading disease.
Healthy Soil
Build healthy soil with compost and organic matter. Healthy plants are more resistant to disease.
Resistant Varieties
Choose disease-resistant plant varieties when available, especially for common problems in your area.
Proper Sunlight
Ensure plants get appropriate sunlight for their species. Too much or too little can stress plants.
Plant Disease Articles
Explore our collection of articles about plant diseases, their identification, prevention, and treatment methods.
Early Blight in Tomatoes: Identification and Treatment
How to identify, prevent, and treat early blight fungal disease in tomato plants.
Identifying Powdery Mildew: The White Fungus
Recognizing symptoms and effective treatments for this common plant disease.
Root Rot: Causes, Symptoms, and Solutions
How overwatering leads to root rot and what you can do to save affected plants.
Fire Blight in Fruit Trees: Prevention and Control
Protecting apple and pear trees from this destructive bacterial disease.
Viral Mosaics: Identification and Management
How to recognize and manage mosaic virus infections in vegetables and ornamentals.
Downy Mildew in Cucurbits: A Grower's Guide
Managing downy mildew in cucumbers, squash, and other cucurbit crops.
Leaf Spot Diseases: Identification Guide
Diagnosis, prevention, and treatment of leaf spot diseases: identification guide in garden plants.
Black Spot on Roses: Treatment Options
Diagnosis, prevention, and treatment of black spot on roses: treatment options in garden plants.
Bacterial Wilt in Cucumbers and Melons
Diagnosis, prevention, and treatment of bacterial wilt in cucumbers and melons in garden plants.
Fusarium Wilt: A Soil-Borne Threat
Diagnosis, prevention, and treatment of fusarium wilt: a soil-borne threat in garden plants.
Rust Diseases in Ornamental Plants
Diagnosis, prevention, and treatment of rust diseases in ornamental plants in garden plants.
Verticillium Wilt: Symptoms and Management
Diagnosis, prevention, and treatment of verticillium wilt: symptoms and management in garden plants.
Clubroot Disease in Brassicas
Diagnosis, prevention, and treatment of clubroot disease in brassicas in garden plants.
Anthracnose: The Plant Canker Disease
Diagnosis, prevention, and treatment of anthracnose: the plant canker disease in garden plants.
Late Blight: The Potato Famine Disease
Diagnosis, prevention, and treatment of late blight: the potato famine disease in garden plants.
Sooty Mold: The Honeydew Fungus
Diagnosis, prevention, and treatment of sooty mold: the honeydew fungus in garden plants.
Bacterial Leaf Spot in Peppers
Diagnosis, prevention, and treatment of bacterial leaf spot in peppers in garden plants.
Cedar-Apple Rust: A Complex Fungal Disease
Diagnosis, prevention, and treatment of cedar-apple rust: a complex fungal disease in garden plants.