North American Fruit Explorers mailing list at ibiblio

[John S <swim_at_svc@yahoo.com>]

The assumption that black fruit is less visible to birds is not correct.  
Fruit eating birds see further into ultraviolet than humans.  A black fruit 
may, in fact, be much brighter in the UV than we can detect with out eyes.  
Fruits can signal ripening by changing color.  We all know that.  But we 
cannot see with our eyes how that ripe fruit may appear to birds.  My source 
is an excellent article that appeared in Scientific American magazine many 
years ago.  I am not able to locate the actual reference, but someone more 
skilled than I can likely find it.  As I recall, part of the article did 
discuss how changes to UV fruit color was used by birds to detect ripening 
fruit.

john s


--------------------------------------------
On Fri, 1/29/16, Maria <mariaschu@vtlink.net> wrote:

 Subject: Re: [nafex] Jim Fruth's comments.
 To: nafex@lists.ibiblio.org
 Date: Friday, January 29, 2016, 10:50 AM
 
 What about
 honeyberries/haskaps?  The birds eat them all the second
 they 
 ripen.  Jim, have you tried blue
 beads on honeyberries or blueberries?
 
 Maria
 
 On
 1/29/16 10:33 AM, Naomi Counides wrote:
 >
 Yes, thanks... got some good ideas from that.
 > Naomi
 >
 > -----Original Message-----
 > From: nafex [mailto:nafex-bounces@lists.ibiblio.org]
 On Behalf Of Jim Fruth
 > Sent: Friday,
 January 29, 2016 8:13 AM
 > To: mailing
 list at ibiblio - Northamerican Allied Fruit
 Experimenters
 > Subject: Re: [nafex] Jim
 Fruth's comments.
 >
 > Alan,
 >      You
 have my permission to send it to anyone.  I sent it to
 magazines in
 > US, UK, CA, Australia and
 Russia
 >
 > Jim
 >
 > -----Original
 Message-----
 > From: Alan Haigh
 > Sent: Friday, January 29, 2016 5:05 AM
 > To: nafex@lists.ibiblio.org
 > Subject: [nafex] Jim Fruth's
 comments.
 >
 > Jim, do
 you mind if I quote your comments on the Growingfruit.org
 forum?
 > Some members who don't also
 participate on nafex@lists might be
 interested.
 > I always thought this an
 ingenious strategy and reading it again I feel
 > foolish for never having tried it as
 you've been sharing this for a very
 >
 long time.
 >
 > I grow
 sour cherries and have ZERO bird problems.  Why?  I hang
 red plastic
 > 'cherries' in the
 trees and leave them in the tree the whole year around,
 > replacing them as they fade.  Also, I put
 red painted stones in the
 > strawberries
 as soon as blooming is finished.  The birds peck on the
 rocks,
 > hurt their beaks and don't
 come back.  AND I hang raspberry shaped berry
 > beads around the perimeter of the red
 raspberry patch as soon as blooming is
 >
 done.  It doesn't work 100% but it helps.  Black berry
 beads do not work
 > with blackberry and
 black raspberry and I don't know why not.
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