Fruit tree issues..... Help! - Ask Extension
My stone crop tree has something called Gamosis and I was told from a nursery that it is dying and not able to be saved. I have a cherry tree I would...
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Fruit tree issues..... Help! #870991
Asked May 31, 2024, 4:19 PM EDT
My stone crop tree has something called Gamosis and I was told from a nursery that it is dying and not able to be saved. I have a cherry tree I would like to plant in it's place. How do I prepare the soil to prevent disease to my new tree and how do i prevent diseases for this tree in general living in central Oregon going into the future with this. Also it has ants on it, is there a way to get rid of the ants or will they go away when I get rid of the diseased tree? Please Help! Desperate to be successful! :)
Deschutes County Oregon
Expert Response
Hi Rachel:
Gummosis doesn't have anything to do with the soil, so you should have no problems with your new tree. Fruit trees can be tricky in Central Oregon, because of our varied climate and poor soil in general. When planting a new tree, the formula is 1/3 organic matter and 2/3 native soil. The tree needs to acclimate to our native soil. I'm going to attach a couple of articles you may find helpful. This link: Gummosis, A Sticky Situation explains what Gummosis is, how to prevent and treat it. The ants may be feeding on aphids, which are attracted to the tree sap. That should go away when you eliminate the Gummosis.
The second link listed here provides a list of fruit tree varieties that do well in our short growing season and climate, with tips for successful fruit production.
Selecting Fruit Tree Varieties for Central Oregon
There are links to other articles you may find helpful if you scroll to the end of the bulletin.
Thank you for your question,
Gummosis doesn't have anything to do with the soil, so you should have no problems with your new tree. Fruit trees can be tricky in Central Oregon, because of our varied climate and poor soil in general. When planting a new tree, the formula is 1/3 organic matter and 2/3 native soil. The tree needs to acclimate to our native soil. I'm going to attach a couple of articles you may find helpful. This link: Gummosis, A Sticky Situation explains what Gummosis is, how to prevent and treat it. The ants may be feeding on aphids, which are attracted to the tree sap. That should go away when you eliminate the Gummosis.
The second link listed here provides a list of fruit tree varieties that do well in our short growing season and climate, with tips for successful fruit production.
Selecting Fruit Tree Varieties for Central Oregon
There are links to other articles you may find helpful if you scroll to the end of the bulletin.
Thank you for your question,
Thank you!! So helpful! So are you saying that my tree may not be dying? Is the gamosis fixable? The current tree with Gamosis is a dwarf 5 different type of stone fruit tree. One of the branches with the worst gamosis was visible at the start of spring and was definitely dead so I cut it off. The rest of the tree looks good but where I cut it, there is still sap like stuff oozing out. Is this fixable?
Should I send photos?
Thanks,
Rachel Pernotto
Hello Cristi!
I am wondering if you can tell me how to treat the infected tree? I cut off one of the dead limbs but where I cut it off is still oozing. Is this fixable or is the tree dead?!
I would love to keep the tree but don’t know how to help it.. should I spray it, or fertilize?
Thanks for all your guidance!
Rachel pernotto
Rachel:
There are a few factors in play here. If the tree is young, I would pull it out and start over. Treating Gummosis is tricky and it may not be worth the trouble. I'm attaching a couple more articles. This one: Gummosis provides information for preventing Gummosis in the future and other causes of gumming. This may help you decide whether your case if treatable.
This article: Preventative Control for Cytospora Canker goes into more detail and offers a table of chemical treatments you can use after the diseased portion of the tree is removed. It is from Colorado State University Extension, but you will see they have a similar climate to us and many of the same challenges growing fruit trees.
Hope this helps and I'm sorry about your tree.
There are a few factors in play here. If the tree is young, I would pull it out and start over. Treating Gummosis is tricky and it may not be worth the trouble. I'm attaching a couple more articles. This one: Gummosis provides information for preventing Gummosis in the future and other causes of gumming. This may help you decide whether your case if treatable.
This article: Preventative Control for Cytospora Canker goes into more detail and offers a table of chemical treatments you can use after the diseased portion of the tree is removed. It is from Colorado State University Extension, but you will see they have a similar climate to us and many of the same challenges growing fruit trees.
Hope this helps and I'm sorry about your tree.
