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HELP! My sycamore tree is dying!

June 10, 2016 By Pro Care

If your sycamore tree is making your yard look like October in the middle of June, you’re not alone.  It’s a common fungal disease called “anthracnose.”  Symptoms are yellowing leaves that shrivel on the limbs & eventually fall.  Like all img_4069plant diseases, it requires three things to develop:

  1. A susceptible host (sycamore).
  2. A pathogen (anthracnose).
  3. Favorable conditions for disease development (rainy weather when buds emerge; warm spring temps).

The first two conditions are certainties every year.  Sycamores are susceptible & anthracnose spores are waiting on branches & twigs in early spring.  Unknown is whether or not it will rain when new leaves emerge.  Rain splashes spores through the canopy & onto tender new leaves.  It’s also unknown if temperatures will favor the disease or help inhibit it. The good news is that new leaves often push through by July & the tree almost looks normal by mid-summer.  However, anthracnose can damage twigs & branches, causing deformities known as “witches’ brooms.”

Pro Care offers specialized cambium injections for current full-service clients on our Tree/Shrub Care Programs.  Treatments made this year would be for suppression next year.  The optimal timing for cambium injections is approximately 1-month before the first frost.  Our Certified Arborists are ready to help!

 

 

 

Filed Under: Blog

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