Black Knot On Plum And Cherry Trees
Black knot, caused by the fungus Dibotryon morbosum, is a common disease of plum and cherry trees throughout the United States. The fungus attacks twigs and bran READ MORE http://www.aces.edu/pubs/docs/A/ANR-1055/
Submitted by Meghan Shinn on March 8, 2011 – 8:00 am
Question: Our purple-leaf plum tree has a couple branches with a thick black crust covering a section of bark. I think it is black knot. How s READ MORE http://www.hortmag.com/weekly-tips/qa/black-knot-disease