Phyllosphere
The reproductive conidia of Venturia inaequalis erupting through the cuticle of a crabapple leaf. From the Wikipedia article “Apple Scab,” https://en.wikipedia.org/wiki/Apple_scab. By C. J. Walke As organic farmers and gardeners, we understand the importance of a biologically active soil, where beneficial microbes thrive in the rich organic matter and humus layer, converting mineral nutrients into