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Updated: August 8, 2017
Foliage plant diseases caused by living things such as fungi, bacteria and foliar nematodes generally begin during production. Once the plant is place in the final indoor location, the low humidity conditions are very unfavorable for continued disease development and spread unless the plant is frequently watered in a manner that wets the leaves. Therefore, it is best to water plants in a way that keeps water off the leaves.
Prepared by Gary W. Moorman, Professor of Plant Pathology
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