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Dark, decayed Lisianthus roots (right) caused by fungal root decay.

Sparse, dark, decayed roots (right plant) on Lisianthus (Eustoma grandiflora) infected with root decay, probably Phytophthora or Pythium sp., Ventura Co. Photos of a pair of plants, one healthy, one diseased, light background. Credit: Jack Kelly Clark — Credit: Jack Kelly Clark

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