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By Arizona

United Kingdom Gb

Hi my Yucca Filmantosa has brown spots on the leaves,
what is the cause and how can I stop them.
regards Thomas



Most likely Yucca Leaf Spot, a fungal infection spread by water splash. Treatment is ineffective, but you could try spraying with mancozeb, if its still available. Usual course of action is to remove severely affected leaves - this particular infection is more severe on variegated leaved versions of this plant, and worse on Yucca gloriosa, usually. Yucca flaccida varieties rarely seem to suffer from it though.

7 Jun, 2012

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