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Thread: Weed Killer

  1. #1
    p54jes is offline Seedling
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    Default Weed Killer

    Hello ,
    Just started with my new allotment to dig it over for a fresh start next season and wanted to know if there are any weed killers I can use that wont affect my veg next year but will keep weeds down this, I am putting in a lot of hard work in to get it ready but they keep rearing there ugly heads.

    Many thanks
    P54jes.

  2. #2
    Snadger's Avatar
    Snadger is online now Gardening Guru
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    Anything with glyphosate as it's active ingredient will do the trick!
    My Majesty made for him a garden anew in order
    to present to him vegetables and all beautiful flowers.- Offerings of Thutmose III to Amon-Ra (1500 BCE)
    Diversify & prosper!


  3. #3
    Two_Sheds's Avatar
    Two_Sheds is offline Compost Everything...
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    As Snadger says, glyphosate. But follow the instructions to the letter.
    Supermarkets do their own brands, they are nearly all having gardening sales at the moment too.
    It is more effective if you spray it on, rather than using a watering can, but you must not do it on a windy day, or a wet day. It can take several weeks to work as well, don't expect overnight results.

    All gardeners know better than other gardeners." -- Chinese Proverb.

  4. #4
    Kristen is offline Early Fruiter
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    Anything Glyphospahte / Roundup touches will be killed (well, maybe not a light dash on a mature tree ...), including walking across your prize lawn after spraying the plot!

    I would wait 2 weeks, then anything that is still green I would treat a second time, then dig / rotovate.

    Have a look and see if you have any mares tails (weeds) because they are unlikely to be effected by Glyphosphate (or pretty much anything else except Ammonium sulphamate, which is no longer available in most formulations - Doff "Tough Weedkiller" might be still available). If so you will heed to wage a war with that week specifically

  5. #5
    geoff is offline Rooter
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    Yes, glyphosphate will kill all plants; so will sodium chlorate. It is cheaper and it will have 6 months or so to decompose so it should not affect plants next spring - but get a second opinion!

    A safer way is to mulch with newspaper topped with vast ammounts of rotted manure. This can be dug in next spring thus impriving the soil, killing two birds with one mulch

  6. #6
    Angie Heys is offline Germinator
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    As everyone else has said glyphosate is good but if you mix SBK in as well you'll get the woody plants also like lavatera which we are plagued with in Portsmouth.
    Good luck and take the time to enjoy and chat and of course drink tea etc.

  7. #7
    Snadger's Avatar
    Snadger is online now Gardening Guru
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    Quote Originally Posted by geoff View Post
    Yes, glyphosphate will kill all plants; so will sodium chlorate. It is cheaper and it will have 6 months or so to decompose so it should not affect plants next spring - but get a second opinion!

    A safer way is to mulch with newspaper topped with vast ammounts of rotted manure. This can be dug in next spring thus impriving the soil, killing two birds with one mulch
    Hi geoff, Not a great fan of sodium chlorate I'm afraid as it's one of only a handful of residual weedkillers left on the market. It can take an indeterminate time to break down depending on ground conditions and weather etc
    As you say, with sodium chlorate persisting in the soil for a long time and killing anything you plant there ..............frightens me a bit to be honest I can't understand how it is still on the market! (Cheap and nasty methinks)

    Alternatively, and theoretically, you could spray with glyphosate one day and plant the same area the following day.
    My Majesty made for him a garden anew in order
    to present to him vegetables and all beautiful flowers.- Offerings of Thutmose III to Amon-Ra (1500 BCE)
    Diversify & prosper!


  8. #8
    Kayt is offline Sprouter
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    I've used sodium chlorate on half of my new plot as it's full of brambles etc. I realise that I can't grow anything on it for 6 months. Someone suggested that once they've died off then to clear them, cover the ground with cardboard topped with manure and leave til next spring. Is this safe to do or should I leave the manuring until after the 6 months has passed?

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