[nafex] European plums & black-knot (cv. President vs Imperial Epineuse/D'Agen)
scott at cs.jhu.edu
Thu Feb 16 22:08:04 EST 2012
If you are regularly in your orchard I would not be so concerned about black knot. Make sure the trees are in full sun and don't let them get too dense anywhere, and then cut out any knots you see. Pay particular attention in winter pruning for knots, they are more visible then and you can reset the system by getting rid of nearly all of it in the winter. I have yet to lose a plum to black knot and I have about 30 plum trees in a similar climate.
Scott z7 MD
On Feb 16, 2012, at 9:59 PM, Steven Covacci wrote:
> I'm planting the self-fertile, highly disease-resistant (including black-knot resistant) variety of European plum (P. x domestica) known as 'NY-9' (aka 'Kenmore).
> For a second plum - a purple-fruited variety, I'd like to go with either Imperial Epineuse or D'Agen. However, President would be my second-choice, right after 'NY-9' for the sake of disease-resistance. I live in the northeast (NJ).
> Do you think I'd be better-off planting President and then, latter, top-grafting with the better-tasting Imperial Epineuse (or maybe D'Agen; aka D'Ente/707)? I figure that if the top-grafted variety starts exhibiting high-susceptibilty to black-knot, then I can cut it back to the President variety which it the understock and frame.
> Or would I be better-off just getting the better desired variety (Imperial Epineuse) and just keeping my eye out for black-knot, pruning it off. One note is that if I just get a grafted tree of Imperial Epineuse, I would steep the graft union and get it on its own roots; however, if on President - there will be a graft-union between the President under-stock/frame and the top-grafted second variety, a point into which borers may enter, being that there will be a graft-union. Sometimes, albeit rarely, the graft-union can get black-knot also.
> Lastly, does anyone have an opinion as to wether the larger, freestone Imperial Epineuse is better then the more internationally utilized clingstone, smaller D'Agen (aka D'Ente/707 selection)?
> Steve - NJ
> nafex mailing list
> nafex at lists.ibiblio.org
> aubscribe/unsubscribe|user config|list info:
> message archives
> Google message archive search:
> site: lists.ibiblio.org/pipermail/nafex [searchstring]
> nafex list mirror sites:
> Avant Geared http://www.avantgeared.com
More information about the nafex