[NAFEX] Unusual June drop behavior

Bob Hartman hartmansfruit at msn.com
Wed Jun 9 20:16:42 EDT 2010

There are several factors that could affect the fruit dropping with the fact 
that Stanley is partially self fruitful but will have heavier crops if there 
is another European variety close by.  It could be that the weather 
conditions were such that it didn't get any pollen from another source and 
the fruit is dropping because of incomplete pollination.  Also frosts could 
affect the fruit too.  I know nothing about the NY 1502 except what it says 
in Richard Ashton's book Plums of North America.  It does mention that it is 
very vigorous.

We had very few plums, European pears, and Asian pears because we had late 
frost this year.  Every time I would go out to my favorite pear tree it 
would have fewer pears on it.

Western Washington

From: "sherwin dubren" <sherwindu at comcast.net>
Sent: Tuesday, June 08, 2010 3:27 PM
To: <nafex at lists.ibiblio.org>
Subject: [NAFEX] Unusual June drop behavior

Our plum tree is 2/3 Stanley Plum and 1/3 N.Y. 1502, an
Asian plum.  We have had our June drop and strangely, the
Stanley has dropped much more fruit, especially considering
that the fruit set was about the same density for both
varieties.  Perhaps this is a genetic thing, but it is
interesting all the same.  The Asian plum is on younger
wood having been grafted on about 6 years ago onto this
Stanley from 1989.  The Asian plum has grown very vigorously
in comparison with the Stanley that has very little growth
in recent years.  This is a dwarf tree and I never found
out what rootstock it is on.

                  Sherwin Dubren
                  Morton Grove, IL 

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