[NAFEX] Surround Observations

Dean Kreutzer deankreutzer at hotmail.com
Thu Jul 28 00:30:06 EDT 2005

Hello all,

I've been doing a small study about the effectiveness of surround on cherry 
fruit fly.  Supposedly surround controls Apple Maggot, which is similar to 
cherry fruit fly.  I haven't harvested the cherries yet, so I don't know the 
results, but I do have some interesting visual (not validated) observations 
so far.  I think I have applied surround twice this year; it has been 
difficult to keep a good coat on it due to the intermittent showers we have 

The fruit size of the surround row is smaller than the fruit on the other 
rows.  Also, they appear to be completely ripe (18% brix) while the other 
rows still have 1 week left to go (13% brix).

It is almost like applying surround hastened the ripening process, but 
didn't allow the fruit to size up properly.  Supposedly surround will cause 
the stomatas to remain open on very hot days (>80F), increasing 
photosynthesis when normally the leaves would shut down.  We haven't had 
that many burners this year, so I'm not sure if that has anything to do with 
it at all.

I also sprayed some apricot fruit, which is starting to color up now, but it 
too hasn't sized up very well, about a ping pong ball size.  Granted, I 
haven't fruited this particular cultivar before (Debbie's Gold) so I am 
unsure as to how big it does get.

I sprayed surround on some of my apples, and they seem to be sizing up 

Has anyone else noted anything about using surround on stone fruit?


Dean Kreutzer
Over the Hill Orchards
Regina, Saskatchewan Canada
USDA zone 3

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