Identification: White Dots on Sunflower Leaves

Discussion in 'Fungi, Lichens and Slime Molds' started by Plant Lover Vancouverite, May 28, 2020.

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  1. Plant Lover Vancouverite

    Plant Lover Vancouverite New Member

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    Bring back the bees! That was my goal anyway, when I excitedly received free sunflower seeds: Bring Back the Bees

    Unfortunately 3 out of 4 of my sunflower plants started getting little white dots. Any idea what this may be? Should I throw them out before they spread to my other plants?! The bottom set of leaves also started to turn yellow, on 3 out of 4...

    Vancouver outdoor balcony with lots of sun!
     

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  2. Daniel Mosquin

    Daniel Mosquin Paragon of Plants UBC Botanical Garden Forums Administrator Forums Moderator 10 Years

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  3. Frog

    Frog Contributor Forums Moderator 10 Years

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    Daniel's suggestion of the Leaf Smut is compelling.
    I don't think the sun would inhibit some fungal diseases: I say that from smuts and mildews I have seen, however, I don't have the gardening/plant pathology experience around this.
     

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