VASCM: Organic Herbicides vs Roundup

Fri Dec 21 22:41:03 GMT 2018

Thanks very much Prudy for this great synopsis and also for Richard and
Till! Ill be looking into a mechanical solution as part of my longer term
management solution, but I want to get some organic herbicides down before
them peskey weeds start having a party in my vineyard!

Thanks again to all!
Eug

On Fri, Dec 21, 2018 at 11:05 AM prudy foxx <prudyfoxx at gmail.com> wrote:

> I have tried all of the products named and then some including many of the
> mechanical options.  The sprays mentioned are quite expensive but are
> completely effective in some cases and often only for a limited period of
> time.  Retreating is often required depending on weed species, soils and
> weather or irrigation.
> Mechanical alternatives are getting better all of the time. (Great
> pictures Ryan!). There are a number of options out there.
>
>
> Mechanical cultivation and cover cropping to outcompete weed species is
> the most effective program in my opinion.
> .
>
>
> In my experience the bottom line is that weed control must be done as a
> management system.  We have to get away from this idea that a a silver
> bullet exists “one and done” to kill the weeds and move on.
> Weeds are part of the entire ecosystem of your vineyard.  They bring up
> minerals from deep in the earth and they compete for resources and block
> precious air.  They are our friend and foes simultaneously.
> It really helps to know what kind of weeds you are controlling, their
> lifecycle and their origins, but you can gain that over time.
>
> Obviously the single most important thing is to get the weeds early,
> before they have built huge biomass under the soil (just more energy to
> support re sprouting) or formed seed heads to spread the progeny.
>
> Weeds are incredible survivors.  The sprays work if you get them when they
> are small or their growing tip is exposed (in monocots) or in a period
> where they have a hard time re-sprouting.
>
> They also develop resistance to herbicide treatments.
>
> What works for one site does not work for all sites.  It has so much to do
> with soil type, weather pattern, seed bank already in the soil ready to go
> again, and size of the weeds.
>
>
> *If people have time I urge you to check out EcoFarm 2019 at Asilomar in
> Pacific Grove. January 23 to 26.*
>
> *This is a conference put on by people absolutely passionate about growing
> things in a sustainable, environmentally responsible, and economically
> viable way.*
> *They bring science and experience from all over the world.*
> *This year they have specific targeted workshops on identifying weeds and
> their control, on new technologies to control weeds, how to read a soil lab
> report, crop fertility plans, living soils, and on and on.*
>
>
>    You might also check out the UC Davis ANR online programs. They have
> great info on fungicide and herbicide resistance.  This is an issue we must
> all be educated in.
>    Check out http://class.ucanr.edu
>
>
> *We can grow world class ultra premium wine grapes right here in the
> beautiful Santa Cruz Mountains.  We are so fortunate to be given the
> opportunity to do this with our outstanding terroir.*
> *Lets take the time to learn how to make the most of it and respect it at
> the same time.*
>
> *Cheers*
>
> *Happy Holidays!*
>
> *Prudy Foxx*
> *Foxx Viticulture*
>
> Go to: Eco-Farm.org <http://eco-farm.org/> or just google EcoFarm 2019.
>
> On Dec 21, 2018, at 9:17 AM, rfalfaro--- via VASCM <vascm at lists.kkn.net>
> wrote:
>
> Hi All,
>
> We have the Clemens. Ours works on hillsides and on side hills. We can
> adjust (while driving) the width of rows and the angle of the blade. They
> sell single and double sided attachments. We have plant spacing between 2
> and 5 feet. It works great with all spacing.
>
> It takes a bit to get the hang of it. Once you do it is amazing. We go
> between 5-7 MPH. Se attached before and after pictures.
>
> Cheers,
>
> Richard Alfaro
> Alfaro Family Vineyards
> 420 Hames Rd.
> <https://maps.google.com/?q=420+Hames+Rd.+%0D%0A+Corralitos,+CA+95076&entry=gmail&source=g>
>
> <https://maps.google.com/?q=420+Hames+Rd.+%0D%0A+Corralitos,+CA+95076&entry=gmail&source=g>
> Corralitos, CA 95076
> <https://maps.google.com/?q=420+Hames+Rd.+%0D%0A+Corralitos,+CA+95076&entry=gmail&source=g>
> 831-728-5172
> alfarowine.com
> In a message dated 12/21/2018 8:53:25 AM Pacific Standard Time,
> till.guldimann at guldimann.net writes:
>
> i am using a weedbadger ] as mechanical solution [ see
> http://chateauhetsakais.com/tilling-moving-covercrop/ ] . it would work
> on the hill-side but would loosen up the soil too much i fear it erosion
> would move it downhill.
> till
>
> On Fri, Dec 21, 2018 at 5:35 AM Eug Theron <eugtheron at gmail.com> wrote:
>
> Thanks Karen and Peter, and my apologies for the confusion with my “but
> does it work on the slopes” question.  That was in response to a youtube
> link that Ryan had shared about a pretty nifty PTO attachment to the
> tractor (made by VineTech Equipment) that will take care of the problem ...
> though Im not so sure it will work on the steeper slopes, given the angles
> involved.
>
> Thanks again for everyone’s input!
> Eug Theron
>
>
> On Fri, Dec 21, 2018 at 1:28 AM Karen Munshi <karen.munshi at gmail.com>
> wrote:
>
> We’ve had both sprayed on our vineyard and Weed Slayer far exceeded
> Suppress.
> I don’t know how our slope compares to yours, but it worked where ever it
> was sprayed.
>
> Karen Munshi
> Rodan + Fields
> https://kmunshi.myrandf.com
>
>
>
>
> On Dec 20, 2018, at 8:25 PM, Wagner, Peter <pdwagner at ucsd.edu> wrote:
>
> Our two cents: Suppress is VERY expensive, works on any slope as far as I
> know (just sprayed on the weeds), produces yellowing/wilting quickly in
> 24-36 hours, but does NOTHING to the roots, so the weeds come back in a
> week or four better than ever.
>
> Is that any of what you were asking?
>
> Peter & Harrieth Wagner 12/21/18
> ________________________________________
> From: VASCM [vascm-bounces at lists.kkn.net] on behalf of Eug Theron [
> eugtheron at gmail.com]
> Sent: Thursday, December 20, 2018 5:01 PM
> To: Ryan Beauregard
> Cc: Vascm
> Subject: Re: VASCM: Organic Herbicides vs Roundup
>
> Now that's what I need! But does it work on the slopes??
>
> Thanks Ryan!
>
> Cheers,
> Eug
> Eug Theron
> 213 Lakeshore Court, Richmond, CA 94804
> <https://maps.google.com/?q=213+Lakeshore+Court,+Richmond,+CA+94804&entry=gmail&source=g>
> (weekdays)
> Charmant Vineyards @ 800 Larsen Road, Aptos, CA 95003
> <https://maps.google.com/?q=800+Larsen+Road,+Aptos,+CA+95003&entry=gmail&source=g>
> (weekends)
> Cell: (831) 888-7256
>
> While we're alive, let's live!
>
>
>
> On Wed, Dec 19, 2018 at 4:45 PM Ryan Beauregard <
> ryan at beauregardvineyards.com<mailto:ryan at beauregardvineyards.com
> <ryan at beauregardvineyards.com>>> wrote:
> https://youtu.be/6eFpO0RELOI
>
>
>
> Sent from my iPhone
>
> On Dec 19, 2018, at 11:06 AM, Nick de Sieyes <nrdesieyes at gmail.com<
> mailto:nrdesieyes at gmail.com <nrdesieyes at gmail.com>>> wrote:
>
> Green Valley Ag Supply has Suppress but not Weed Slayer; I'm also
> interested in hearing where to buy the latter locally.
>
> On Wed, Dec 19, 2018 at 12:57 PM Eug Theron <eugtheron at gmail.com<
> mailto:eugtheron at gmail.com <eugtheron at gmail.com>>> wrote:
> Hi VASCM,
>
> Does anyone know where I could buy organic herbicides, such as Weed Slayer
> or Suppress?
>
> This might be discussed at the January meeting, but I'm not sure I'll be
> able to attend, and I need to get ahead of my weeds this winter.
>
> Thanks for your help!
> Eug
> Eug Theron
> 213 Lakeshore Court, Richmond, CA 94804
> <https://maps.google.com/?q=213+Lakeshore+Court,+Richmond,+CA+94804&entry=gmail&source=g>
> (weekdays)
> Charmant Vineyards @ 800 Larsen Road, Aptos, CA 95003
> <https://maps.google.com/?q=800+Larsen+Road,+Aptos,+CA+95003&entry=gmail&source=g>
> (weekends)
> Cell: (831) 888-7256
>
> While we're alive, let's live!
>
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> --
> [
> https://docs.google.com/uc?id=0B6rUTkteXdljTUFIV2lOMzlFX25HcS1Dd2RxSWlKTkVhUGhr&export=download
> ]
> Nicholas R. de Sieyes, PhD
> Manager, de Sieyes Brothers LLC
> 831.688.1190 (office)
> 831.331.0751 (cell)
> nrdesieyes at gmail.com<mailto:nrdesieyes at ucdavis.edu
> <nrdesieyes at ucdavis.edu>>
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> --
> Eug
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> ________________________________________________
> Till Guldimann  •  21891 Via Regina, Saratoga, CA 95070
> <https://maps.google.com/?q=21891+Via+Regina,+Saratoga,+CA+95070&entry=gmail&source=g>
> Tel +1 (408) 657-7606.  www.chateauhetsakais.com
>
>
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Eug
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