Here is what diplodia looks like in an Austrian pine spotted in a median along Grand River Avenue in East Lansing, Michigan.
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Diplodia on Austrian pine
Pycnidia spores are all over this Austrian Pine cone. They show up as little black “pepper” flecks all over each of the cone scales. One of the ways to help treat for this disease is to make sure that ALL the cones are cleaned up and removed from the entire area being treated.
another pycnidia picture – medium size to see how it looks and if we can still click on it on the site to see larger version???