VASCM: Alternatives to netting for birds

Wed May 29 09:04:11 PDT 2013

That's one way to get more hang time :-)

-----Original Message-----
From: vascm-bounces at kkn.net [mailto:vascm-bounces at kkn.net] On Behalf Of Thomas Legan
Sent: Wednesday, May 29, 2013 7:37 AM
To: Jim Varano
Cc: VASCM at kkn.net; Rfalfaro at aol.com
Subject: Re: VASCM: Alternatives to netting for birds

Interesting point about nets blocking light...Back in 2000 when SCMtn Vineyards purchased my Pinot, Jeff and his crew picked the day before Thanksgiving!  Wonder if the nets had anything to do with that late harvest.  Typically we harvest my Pinot and Chard in late October/early Nov anyway ... for 20 years,  and they're always netted.

On Tue, May 28, 2013 at 4:12 PM, Jim Varano <snipewarrior at comcast.net>wrote:

> I can't delete this e-mail....won't stay gone....anyone else have this 
> issue?
>
> Sent from my iPad
>
> On May 28, 2013, at 10:41 AM, Joe Miller <jmiller1068 at gmail.com> wrote:
>
> > That's good to know, Richard. My comments were about the vagaries of
> overhead netting, but from what you say you don't need to use it at 
> all with equally good results. I do know of vineyards that I believe 
> are stretching their Pinot season well into October because of netting 
> blocking, but until I have the right measuring equipment I can't prove it.
> >
> > Joe
> >
> > On May 28, 2013, at 10:35 AM, Rfalfaro at aol.com wrote:
> >
> >> Using fruit zone nets cuts down dramatically the shading of the 
> >> vines
> vs. overhead netting. It costs more but does not interfere with the 
> photosynthesis like the overhead netting does....
> >>
> >> In a message dated 5/28/2013 10:31:36 A.M. Pacific Daylight Time,
> jmiller1068 at gmail.com writes:
> >> Many years ago on a visit to the National Radio Astronomy 
> >> Observatory,
> I found they were using sounds to keep birds away from their very 
> sensitive radio receivers. After lengthy experiment they came up with 
> a random sound generator that made an infinite series of sounds, some 
> very bizarre, that never repeated. They claimed it had been working 
> for years. I urged the people involved to contact grape and other 
> growers, but I don't believe that ever happened. I could try to find out if this is all lost to the past.
> >>
> >> Soloar energy people working with photovoltaics have looked for 
> >> good
>  screening to protect their cells, but all screens and nets, even 
> chicken wire, block significant sunlight. The finest effective screen 
> an engineering  friend of mine found was made out of very fine chicken 
> wire, and it blocked 15% of the light. I'm probably alone in this, but 
> I believe that some people are using nets that block enough sunlight 
> to delay their grapes ripening by weeks. I've seen nets that are 
> blocking over 50% of the sunlight in many places because of their 
> folds.I'm trying to get the equipment available to measure the 
> blockage of different nets. It has to be done carefully. Of course 
> there's more to ripening than sunlight, but somehow I think 
> photosynthesis is a central element, and less photons mean slower 
> ripening. Maybe out in the literature there are some studies of this 
> already. If anybody thinks this is a good thing for me to pursue, let me know.
> >>
> >> Joe
> >>
> >> On May 22, 2013, at 7:47 PM, Jim Adkisson wrote:
> >>
> >>> I have purchased recorded sounds of a dozen birds of prey that is
> supposed
> >>> to keep birds away. Claims that it is used at golf courses, 
> >>> airports
> and for
> >>> crops. DOES NOT WORK. Happy to send copy of WAV files for anyone
> interested.
> >>> Netting is your salvation.
> >>> Jim Adkisson
> >>> Falcon Hill
> >>>
> >>> -----Original Message-----
> >>> From: vascm-bounces at kkn.net [mailto:vascm-bounces at kkn.net] On 
> >>> Behalf
> Of
> >>> Candice Wozniak
> >>> Sent: Wednesday, May 22, 2013 6:25 PM
> >>> To: Debbie Lehmann
> >>> Cc: VASCM at kkn.net
> >>> Subject: Re: VASCM: Alternatives to netting for birds
> >>>
> >>> I want to try a computer operated sound/noise maker. Does anyone 
> >>> have
> one I
> >>> can have or borrow?
> >>> I have a Rodenator available for anyone to borrow.
> >>> -Candice Wozniak
> >>>
> >>> On May 22, 2013, at 12:48 PM, Debbie Lehmann 
> >>> <debbie.lehmann at gmail.com
> >
> >>> wrote:
> >>>
> >>>> Has anybody used something other than nets to control birds after
> >>> veraison?
> >>>> We are thinking about experimenting this year with one of those 
> >>>> sound
> >>> boxes
> >>>> that puts out predatory bird calls, and maybe using reflective 
> >>>> tape as well. Does anybody have experience with these? Do they work at all?
> >>>>
> >>>> Debbie
> >>>>
> >>>> Portola Vineyards
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--
Best always,

Tom
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