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Japanese flowering cherries, is canker inevitable?
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Posted by seansmith (My Page) on Sat, Sep 19, 09 at 11:37
| We have 9 flowering cherries of the Kwanzan. Yoshino and Mr. Fuji varieties in our Zone 10 semi-coastal garden. These relatively young trees (2-3 inch caliper) resided in peat pots for about a year in our yard before they were planted in an artificial hill we built adjacent to them. The site has excellent drainage and receives about 10 hours of sun in the summer and somewhat less in the winter. We know that these flowering cherry trees are subject to canker if not pruned correctly and at the right time of the year. Because our cherries are planted relatively closely together and require regular pruning to keep then from overgrowing their current location does anyone more familiar with these varieties have advice about how much pruning they will take, and are there relatively safe times other than just after flowering in the Spring to prune our cherries so that we can avoid the serious problem of canker. |
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RE: Japanese flowering cherries, is canker inevitable?
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- Posted by bboy USDA 8 Sunset 5 WA (My Page) on
Tue, Sep 29, 09 at 13:52
| I think what you may have heard of is frequent pruning causing these to become diseased through the wounding that occurs when that is done. So, you would avoid lots of canker formation by not pruning so much. If you have a specific canker disease you know to be prevalent there seek guidance from California Cooperative Extension. Japanese flowering cherries sold on dwarfing rootstocks are on the market up here, perhaps that is the route you should have taken. Otherwise planting fewer of the trees probably could have prevented your presently developing concern. |
RE: Japanese flowering cherries, is canker inevitable?
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| Thanks bboy for the advice. Just to clarify, pruning risks cancker even in the Spring. Light pruning or no pruning is your recommendation. Although these trees are planted close together, by that I mean about 10-12 feet apart. BTW are there some species of flowering Japanese cherries that are more resistant to disease problems than others? |
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