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Sick forsythia

Hi my Forsythia has developed patches of die back. Any ideas? Thanks

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  • fidgetbonesfidgetbones Posts: 16,159
    I would cut the diseased bits out. Cut down to good wood. Disinfect the secateurs with a wipe of methylated spirit between each cut to avoid spreading disease.
    You don't stop doing new things because you get old, you get old because you stop doing new things. <3
  • BobTheGardenerBobTheGardener Leicestershire, UKPosts: 11,337
    When you cut back the affected stems, if there is any discolouration in the wood where you cut it, keep taking it back further until the wood is white.  That should remove any disease which started at the tip.  If there is black or brown staining inside the wood all the way to the base, it's probably a fungal attack on the roots (like phytophthora) and probably best to remove the whole thing.

    A trowel in the hand is worth a thousand lost under a bush.
  • I would cut the diseased bits out. Cut down to good wood. Disinfect the secateurs with a wipe of methylated spirit between each cut to avoid spreading disease.

     :) thanks for good sound advice.
  • When you cut back the affected stems, if there is any discolouration in the wood where you cut it, keep taking it back further until the wood is white.  That should remove any disease which started at the tip.  If there is black or brown staining inside the wood all the way to the base, it's probably a fungal attack on the roots (like phytophthora) and probably best to remove the whole thing.

    Thanks for great advice.

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