VASCM: Organic Herbicides vs Roundup

Sat Dec 22 07:55:05 GMT 2018

All. Well said Prudy. No more to add. Happy holidays to all. Rich Casale

Sent from my iPhone

> On Dec 21, 2018, at 12:41 PM, Eug Theron <eugtheron at gmail.com> wrote:
> 
> 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 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.
>>> Corralitos, CA 95076
>>> 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 (weekdays)
>>> Charmant Vineyards @ 800 Larsen Road, Aptos, CA 95003 (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>> 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>> 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>> 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 (weekdays)
>>> Charmant Vineyards @ 800 Larsen Road, Aptos, CA 95003 (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)
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>>> nrdesieyes at gmail.com<mailto:nrdesieyes at ucdavis.edu>
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>>> -- 
>>> Eug
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>>> 
>>> -- 
>>> ________________________________________________
>>> Till Guldimann  •  21891 Via Regina, Saratoga, CA 95070
>>> Tel +1 (408) 657-7606.  www.chateauhetsakais.com
>>> 
>>> 
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>> 
> -- 
> Eug
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