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Excessively long grass can lead to pest infestations, fungal diseases, or lawn thinning.—Megan Hughes, Better Homes & Gardens, 2 June 2026 Water that sits can encourage fungal diseases, like powdery mildew.—Madeline Buiano, Martha Stewart, 2 June 2026 For example, if subjected to high humidity, potato plants may fall prey to fungal diseases that will weaken them and slow growth.—David Beaulieu, The Spruce, 1 June 2026 Water at the base of the plant rather than the head to prevent fungal growth.—Ashlyn Needham, Southern Living, 31 May 2026 See All Example Sentences for fungal