tag:blogger.com,1999:blog-2571100417242238211.post1409358883745685546..comments2023-09-29T10:04:33.858+01:00Comments on Roger Brook - the no dig gardener: Using glyphosateRoger Brook - No Dig Gardenerhttp://www.blogger.com/profile/16210160273591839142noreply@blogger.comBlogger18125tag:blogger.com,1999:blog-2571100417242238211.post-76903670566770965952012-09-07T15:55:31.967+01:002012-09-07T15:55:31.967+01:00Indeed Maryann, I believe I read their paper in FE...Indeed Maryann, I believe I read their paper in FEMS Microbiology Letters and it was most interesting. Apparently they discovered a completely new candida yeast that will be added to the shortlist of candidate yeasts with potential for use in large scale fermentation-based methods of mass-producing sophorolipids as alternatives to surfactants. This can only be a good thing.Oscar Jensen, Wisleynoreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-17158979595432952882012-09-07T11:49:17.190+01:002012-09-07T11:49:17.190+01:00You are right Oscar. Petroleum based surfactants a...You are right Oscar. Petroleum based surfactants are now being seen as more and more of a problem, and not just in soil ecology and horticulture. To counter this, a team in Peoria have set their sights on developing a ‘green’ surfactant from naturally occurring yeasts. Sophorolipid production from the candida species was especially high yielding and will now be investigated further. Maryann, VAnoreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-9812801000534702072012-09-07T10:51:30.628+01:002012-09-07T10:51:30.628+01:00The discovery of glomalin over a decade ago excite...The discovery of glomalin over a decade ago excited not only soil biologists. The biggest question since, has been why AMF produce it. Little was known about the compound’s ecophysiology. However, research from universities in Sweden and Berlin last year has shed some light, suggesting glomalin production may be a stress response. They set up experiments to test for mechanical stress, water Oscar Jensen, Wisleynoreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-63062470688370613732012-09-06T17:16:33.962+01:002012-09-06T17:16:33.962+01:00Thanks Oscar for your interesting reply. I am extr...Thanks Oscar for your interesting reply. I am extremely excited about the discovery of glomalin and I have been planning for some time to post on this topic. I wonder if mycorrhiza which have been shown to make contacts through the soil from plant to plant might possibly shift glyphosate itself, from one plant to another.When I ever so carefully dab a coarse grass weed in my lawn with Roger Brook - No Dig Gardenerhttps://www.blogger.com/profile/16210160273591839142noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-16043843295451827012012-09-06T17:01:02.968+01:002012-09-06T17:01:02.968+01:00When I mentioned using 'top strength' spr...When I mentioned using 'top strength' sprays I was still spraying within the recommended range. I am aware that using many herbicides at extra high dose defeats the object of translocation by causing burning contact action. I must admit though I was unaware that this had been shown to apply to glyphosate. Thanks for the information MaryannRoger Brook - No Dig Gardenerhttps://www.blogger.com/profile/16210160273591839142noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-58324469180864791972012-09-06T15:24:21.124+01:002012-09-06T15:24:21.124+01:00A little glyphosate is good, a lot is NOT necessar...A little glyphosate is good, a lot is NOT necessarily better.<br />It’s been found that it is possible to chemically burn plants before glyphosate has been delivered into the plant body. Plants treated in this way are able to re-sprout from their roots.<br />On the matter of surfactants and their effect on insects and amphibians, in the US, many foresters and nature groups just use Maryann, VAnoreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-9661042825915632502012-09-06T14:49:54.459+01:002012-09-06T14:49:54.459+01:00I think that there may be something in what Tess a...I think that there may be something in what Tess and Cathi have observed. There has been much new and interesting research done on glomalin and how mycorrhizal fungi extend beyond roots, affecting plants quite a distance away. I suspect that most of the glyphosate trials were conducted when nothing was known on this matter, and it could well be very relevant. Mycorrhizal fungi and their Oscar Jensen, Wisleynoreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-23890958317176314762012-09-06T12:59:33.582+01:002012-09-06T12:59:33.582+01:00In reply to Tess and Cathi, I have never found hed...In reply to Tess and Cathi, I have never found hedges suffer from glyphosate spraying, even when I admit to being not over careful. In my experience the soil at hedge bases is no more infertile and lacking in bacterial activity than any other part of a garden.<br />What I do frequently find is that if a plant is sick in a garden where spraying has taken place the weedkiller always gets the blame!Roger Brook - No Dig Gardenerhttps://www.blogger.com/profile/16210160273591839142noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-91158861101774135442012-09-06T12:20:55.427+01:002012-09-06T12:20:55.427+01:00Reply to Helen's first comment
I am not aware ... Reply to Helen's first comment<br />I am not aware of any surfactant free formulations available in the UK. Many of the readers of this blog are home gardeners and the range of glyphosate products to amateurs in this country is very narrow. Our authorities keep amateur and professional products separate. Garden centre glyphosate is weak and expensive, commercial glyphosate is more Roger Brook - No Dig Gardenerhttps://www.blogger.com/profile/16210160273591839142noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-6672943729278561142012-09-06T11:43:30.772+01:002012-09-06T11:43:30.772+01:00Packaging seldom informs the public of what these ...Packaging seldom informs the public of what these additional chemicals are. Most of the information that is to be had on the deleterious effects of this herbicide on fish, frogs, soil biota, and human beings is based on research using the Roundup (with surfactants) formulation. It is often unclear whether researchers have used only glyphosate, or a surfactant mix formulation. The two are VERY Anonymoushttps://www.blogger.com/profile/06062529242782604521noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-28351762031411390032012-09-06T11:03:47.994+01:002012-09-06T11:03:47.994+01:00Tess, I find your comments fascinating, as we have...Tess, I find your comments fascinating, as we have noticed the exact same phenomena regarding both roses and hedging. My husband has always used glyphosate along the hedgeline, but now many of plants fail to thrive. This is a hedge that has been in for many years. The possibility that the poor soil under the hedge does not have the micro-organisms to cope with breaking down glyphosate is one I Cathihttps://www.blogger.com/profile/11681776193140333444noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-66444726511366347352012-09-06T10:33:56.818+01:002012-09-06T10:33:56.818+01:00I find Helen’s comments particularly interesting. ...I find Helen’s comments particularly interesting. I know that Rodeo and Accord are US products that are glyphosate-only. In the UK, glyphosate is combined with surfactants and adjuvants, chemicals (wetting agents) that are mixed in to assist in the delivery. These are, indeed, not listed on packaging. I know (I may be wrong) of no commercial formula that is surfactant-free on sale in the UK. <br Anonymoushttps://www.blogger.com/profile/09214438090732042452noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-37607057963238993372012-09-06T08:05:52.122+01:002012-09-06T08:05:52.122+01:00The greatest danger to frogs in my garden is stepp...The greatest danger to frogs in my garden is stepping on them. They are everywhere! They particularly like to hide in my small nursery. Every time I water they jump swiftly away.Roger Brook - No Dig Gardenerhttps://www.blogger.com/profile/16210160273591839142noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-13406816205203495562012-09-06T08:01:42.446+01:002012-09-06T08:01:42.446+01:00Thanks for this. I have just googled Jeff Gillman....Thanks for this. I have just googled Jeff Gillman. He's the kind of horticulturist I most admire.Roger Brook - No Dig Gardenerhttps://www.blogger.com/profile/16210160273591839142noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-61435155812378239132012-09-05T15:55:12.256+01:002012-09-05T15:55:12.256+01:00I use Glyphosate in the delicate environment of th...I use Glyphosate in the delicate environment of the Norfolk Broads and have to agree with this comment. The bird, amphibian and fish life in the area sprayed is healthy, plentiful, diverse and increasing. Roy Sinclair, Snettishamnoreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-49565788117280466032012-09-05T14:53:24.872+01:002012-09-05T14:53:24.872+01:00One of the most articulate commentators on the sub...One of the most articulate commentators on the subject of Glyphosate is Jeff Gillman, a professor of horticulture at the University of Minnesota. His excellent book, The Truth About Organic Gardening, exposes much of the current scaremongering studies on Glyphosate as not being supported by scientific research.Anonymoushttps://www.blogger.com/profile/11659621675517110544noreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-10903355059372617342012-09-05T14:17:01.138+01:002012-09-05T14:17:01.138+01:00I agree about the low toxicity of Glyphosate. Soil...I agree about the low toxicity of Glyphosate. Soil microorganisms quickly break down surfactant-free glyphosate into non-threatening phosphorus and amino acids that, despite the scare stories about eating Frankenstein food, present no danger to humans, insects, wildlife or amphibians.Lewis Starkey, Penn Statenoreply@blogger.comtag:blogger.com,1999:blog-2571100417242238211.post-45896055583510962502012-09-05T13:47:21.521+01:002012-09-05T13:47:21.521+01:00Surfactant-loaded formulations are convenient, but...Surfactant-loaded formulations are convenient, but the downside is that they can possibly kill aquatic life. A surfactant-free glyphosate product (one that is at least 40% glyphosate in the form of its isopropylamine salt) can be used for most applications and will not harm fish, amphibians or wildlife. Unfortunately it can be difficult to tell whether a product contains a surfactant, as these Anonymoushttps://www.blogger.com/profile/06062529242782604521noreply@blogger.com