[NAFEX] Brown rot-resistant plums

Brungardt, Sam Sam.Brungardt at state.mn.us
Wed Dec 31 16:23:22 EST 2008

Mark, having just obtained the electronic version of Plums of North
America, I searched its cultivar database for brown rot resistance and
found the following info.  In addition there was info on many cultivars
that are very susceptible to brown rot, but I have not included it here.
-- Sam

Very resistant:

Unusually free of brown rot:
Grand Duke

Very good resistance:

Good resistance:


Comparatively free of brown rot:
Wild Goose

Little or no brown rot:

Comparatively immune:
Red June

Some resistance:
AU Roadside

AU Rosa
AU Rubrum
Rivers Delight

Above-average tolerance:
Kenmore Plum

Few problems with brown rot:
Burbank Stoneless Plum

Brown rot has not been a problem:
Jam Session

Moderately susceptible to brown rot:
Mount Royal

Golden Drop (Coe's Golden Drop): not as susceptible to brown rot as
Golden Egg
Kaga: not as much problem with brown rot as Tonka
Morris: more resistant to brown rot than Methley
Pottawattamie: escapes brown rot more than most of its kind
French Petite: no info
Stanley: very susceptible to brown rot; must be sprayed in humid areas

Also, peaches least susceptible to brown rot (from research at
Kearneyville, West Virginia):
Babygold No. 5

-----Original Message-----
From: nafex-bounces at lists.ibiblio.org
[mailto:nafex-bounces at lists.ibiblio.org] On Behalf Of Mark Angermayer
Sent: Tuesday, December 30, 2008 9:27 PM
To: North American Fruit Explorers
Subject: [NAFEX] Plum thoughts please

Hi Folks,

One of my in-laws wants to plant some plums and needs some advice.  The
situation is that the plums will be low-spray, or possibly no spray at
all. I've seen the site and believe the disease pressure will be very
low.  It is in the downtown of a city of 30,000.  Lots of concrete, and,
as as far as I could tell, very few fruit trees around.  So I'm hopeful
he can raise some plums without too much trouble from insects.  Without
looking it up, I
believe the area only gets 30-35 inches of rain per year.   Zone 6.

I want to recommend some high quality cultivars, but they need to have
some resistance to disease, specifically brown rot.  I know about the AU
series of plums, and have some myself (that haven't fruited yet) but
I've heard too many negative comments about quality to recommend them.
Plus I don't think he needs something immune to brown rot, just
something not hyper sensitive to it.

Some ideas:

French Petite- I've heard Ed, Lon, and others sing praises for this
plum, does anyone raise this plum without spray?

Superior- I have this plum ordered for next spring and have it
recommended by S. Smith and Ossi.  Can either of you guys comment on its
susceptiblity to brown rot?

Any other suggestions?  We can go with Europeans or Jap/Amer hybrids.
He has room for about four trees.

Thanks in advance,

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