Diseases

What to do when downy mildew strikes.
Tomato breeders strive to overcome a fatal disease.
When Peter Piper planted his peppers, he may have plotted a plan against pests and pestilence in one of these ways.
Good plant health is the best defense against pests and disease in the greenhouse.
Learn to identify common plant diseases
Keeping plants healthy is at the heart of organic gardening.
Steps to prevention
Learn to recognize the symptoms and understand the causes, then you can prevent them from ruining your garden.
Disease or delicacy? Learn to prevent corn smut—or learn to embrace it.
Protect your broccoli, cabbage, and cauliflower plants by preventing club root this spring.
Every year, my hollyhocks develop ugly reddish spots. What causes these spots, and how can I prevent them?
The causes of catfacing on your tomatoes and what to do.
Alien Tomato? Here's the scoop.