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Water: Garden Friend….and Foe? – Water, Relative Humidity, and Plant Diseases

In The Garden Professors blog this week, John Porter of Nebraska Extension posts an article describing how water provides both necessary moisture and a contributor to diseases that can hurt plant growth, and in the worst cases, kill the plant completely. The article describes how water in the atmosphere contributes to the development of fungal diseases while water in the soil can affect the growth of microbes which affect plant growth. He discusses ways to control moisture in the garden by changing plant density or changing how and when you water your plants. While the article is geared towards home gardens, there is some good information for anyone who is growing plants.