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Re: cherry tree losing leaves in summer


Re : cherry tree losing leaves in summer -- Amber
Posted by Newt , Jul 30,2005,06:33    Top of Thread   Forum

Hi Amber,

When you say "pie cherries" I'm thinking you mean sour cherries - Prunus cerasus. I suspect the leaf damage you see is from Japanese beetles. Since you stated that fruit production is sparse, I'm wondering if flowering was also reduced. Could it be possible that herbicides were sprayed around the base of the tree to kill weeds? There are many diseases and pests for cherries, but the symptoms you have given don't seem to fit. I was thinking of possibly verticillium wilt, but that ususally results in more fruit production. Is it possible that happened last year? Here's a link with several diseases. Take a look to see if anything here fits. The second link has more detail about verticillium wilt.
http://www.ext.nodak.edu/extpubs/plantsci/hortcrop/pp689w.htm
http://www.extension.umn.edu/distribution/horticulture/DG1164.html

My other thought would be Rugose mosaic. Scroll down here.
http://plantpathology.tamu.edu/Texlab/Fruit/Sweetcherry/swtcherry.asp

My suggestion is that you contact your local extension service for guidance here. They should have a lab that can give you a diagnosis. I'm including a link.
http://ext.wsu.edu/

Sorry I couldn't be of more help.
Newt


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