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Ragwort Control Options

  • 09-07-2025 08:38PM
    #1
    Registered Users, Registered Users 2 Posts: 660 ✭✭✭


    Hi all, having big problems with ragwort this year as I hear some others are. All is flowered at this stage. I know I can pull it but I've done that in the past and it comes back. Could I spray it or would mulching it work?



Comments

  • Registered Users, Registered Users 2 Posts: 2,846 ✭✭✭Cavanjack


    Too late spraying now if they are flowering . Top them or pull them and spray if they regrow or next spring when they are only a few inches high.. Need to spray them for years if they are bad.



  • Registered Users, Registered Users 2 Posts: 9,955 ✭✭✭Birdnuts


    my Shetland Sheep and Cinnaber moths are hammering mine atm🙂



  • Registered Users, Registered Users 2 Posts: 19,077 ✭✭✭✭_Brian


    Problem now that they are at full size is if you cut them they become a poison risk. Pulling them at least removes them from that.
    But ground is hard so pulling them will be hard and less successful if you don’t get the roots out.

    Whatever you do it’s not something you beat in one or two years, it takes a few years of work to knock them back and even then you will need to keep on top of them.



  • Registered Users, Registered Users 2 Posts: 44 dowlerswozere


    There is a man in Tullow who makes specialised ragworth sprangs for getting up the roots I can pm you his number if you like

    They grow over two years so as people have said already it takes a few years to get rid of them

    I’ve been doing an hour a day and you’d be surprised how much you get done



  • Registered Users, Registered Users 2 Posts: 660 ✭✭✭farmer2018




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  • Registered Users, Registered Users 2 Posts: 6,536 ✭✭✭emaherx


    Mulch it now, give it plenty of time to rot before letting livestock back.
    From my experience, I didn't have a ragwort problem, ragwort was only the symptom not the cause, using nothing but implementing rotational grazing, grass measuring and regular topping the ragwort disappeared once the grass could out compete it.

    This is from 2017 - just before I took over the farm and the last time I tried to clear a field by pulling.

    image.png


    The same field this morning, will be cut and wrapped shortly and not a yellow flower in sight.

    image.png

    Poor grass management or a nutrient issues will lead to bad ragwort infestations, soil samples came back good for this field, but I blame overgrazing in the fringes of the year allowed the seed the conditions to to germinate, I now close up the worst effected areas first in the autumn to leave them with some cover over the winter and into spring. (Even just the worst strip of a field).

    I still have some fields to deal with but every year I'm seeing an improvement, embarrassingly the home farm is still the worst as it is only a 10 acre block, that has been an easy target for abusing with late/early grazing and/or blacking with FYM but I'm targeting that for improvements now.



  • Registered Users, Registered Users 2 Posts: 11,490 ✭✭✭✭patsy_mccabe


    image.png

    Works for me.



  • Registered Users, Registered Users 2 Posts: 6,536 ✭✭✭emaherx


    Wore that t-shirt long enough, it won't work unless the underlying issues are resolved also.
    But far less pulling required if any once they are.

    Having said that I wouldn't walk past a ragwort without pulling it in a field that is more or less under control.



  • Registered Users, Registered Users 2, Paid Member Posts: 9,915 ✭✭✭893bet


    The difference in the presumed ash tree in the back ground is stark.



  • Registered Users, Registered Users 2 Posts: 6,536 ✭✭✭emaherx


    I just thought the same thing when writing the post, both pictures are from the same time of year.
    Not many healthy looking ash trees left around here.



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  • Registered Users, Registered Users 2 Posts: 660 ✭✭✭farmer2018


    I agree with what your saying but there are various factors depending on people's situations



  • Registered Users, Registered Users 2 Posts: 19,077 ✭✭✭✭_Brian


    I read somewhere that ash trees are showing signs of recovery of a sorts. I certainly hope it’s possible. The one in the corner of my garden “seems” to have more cover this year but that may just be wishful thinking.



  • Registered Users, Registered Users 2 Posts: 19,077 ✭✭✭✭_Brian


    I wonder is mulching to chips the solution?? Would be much harder for any animal to get enough material to sicken themselves and they should rot much quicker.

    If you top them wjen big and strong they will be lying on the ground for the most of the grazing season.



  • Registered Users, Registered Users 2 Posts: 6,536 ✭✭✭emaherx



    True,

    I guess the short version is,
    Don't bother spraying now the plants will wilt, die very slowly and go to seed early and you'll achieve nothing.
    I wouldn't bother pulling either it will be a lot of work and fruitless, if you can't fix the underlying issues now.

    Mulching, them would be an option this time of year, but only if you can afford to keep cattle away for a month, would need up to 6 weeks after a normal topper. Alternatively an old double chop harvester to cut and collect them, then compost them away from livestock.



  • Registered Users, Registered Users 2 Posts: 6,536 ✭✭✭emaherx


    I'm not convinced any of these mature trees will recover much if at all, but I have heard that more younger trees are starting to show resistance. Hopefully there will be some comeback, if fire blight were to take hold now there will be very little life in any of my hedge rows.



  • Registered Users, Registered Users 2 Posts: 660 ✭✭✭farmer2018


    My problem is I've never had them in places I have them now and nothing has changed in some of the fields, which is strange. I drained some land and they even came up where the soil was flattened out from the drains and never had them before there.



  • Registered Users, Registered Users 2 Posts: 9,955 ✭✭✭Birdnuts


    More so the rosette stage just b4 full flowering. I've targetted at the most vulnerealble paddocks since the start of the year and difference is very noticeable compared to my near neighbours with similar ground



  • Registered Users, Registered Users 2 Posts: 6,536 ✭✭✭emaherx


    Well the flattened soil or any bare clay is ideal for their establishment. The seeds spread in the wind and can remain viable for years. Any soil disturbance from machinery/drought/poaching/over-grazing etc will also help them establish.



  • Registered Users, Registered Users 2 Posts: 660 ✭✭✭farmer2018




  • Registered Users, Registered Users 2 Posts: 731 ✭✭✭PoorFarmer


    20250710_172735.jpg 20250710_172832.jpg

    Cinnabar moths doing a job on them here.



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  • Registered Users, Registered Users 2 Posts: 3,506 ✭✭✭Field east




  • Registered Users, Registered Users 2 Posts: 3,506 ✭✭✭Field east


    I use an ordinary 4 pronged garden fork . The prongs are a little longer and more narrow than an ordinary farmyard dung fork . They are square springs and , I’d say a little stronger. Digging / pulling is best effective when ground is soft. - less roots , if any , are left behind. You will know if ground is totally yielding when you dig the first few . I often wonder if , say, a few tips of the roots are left behind do they regenerate.
    when digging , I insert the fork to a depth that when I lean on it that the tips of the prongs will reach to the far side of the clump of the roots - otherwise some of the plant/roots will remain in the soil. If you dig ‘too deep’ you will be taking up more soil than is necessary

    Also , when I am inserting the fork , I do so at an angle with the handle leaning away from me. This means that you can insert the fork closer to the stem and the prong tips have a greater chance of ‘catching’ all/most of the roots and you will also take up less clay.

    Am sounding a ‘ bit technical - but thereyouo%!
    -



  • Registered Users, Registered Users 2 Posts: 9,955 ✭✭✭Birdnuts


    Nice - I was visiting home recently(Kiladare) and a pal of mine who went organic at the same time was showing me a paddock that had docks earlier in the year but is now entirely cleaned out by Dock beetles. I'd say the warm/hot spring and summer are definatly helping all these farmer's friends



  • Registered Users, Registered Users 2 Posts: 7,307 ✭✭✭amacca


    I cut two that definitely had Ash dieback down to about 10ft of trunk, no leaves, no side branches. I sloped the top with a chainsaw so rain couldn't collect and to my surprise they are sprouting all over the place with lovely healthy leaf and not a sign of the pricking thing....

    My surprise wasn't that they sprouted but more that I can't detect any sign of dieback on them....

    I'm not suggesting people go out and do this or it wont become apparent in later years but you couldnt find healthier looking ash ....(Im no expert- I was going to come back for the trunk for firewood and leave it there as it wasnt a hazard for a year or two but now Im going to see how it plays out)... I have a lovely big long escaped hedge with lots if them in it and a good few are showing signs so if they're going to die anyway I'm going to give this a shot and see can I rescue them.



  • Registered Users, Registered Users 2 Posts: 6,536 ✭✭✭emaherx



    I've encouraged them into some of the worst fields in the past, basically pulled infested ragwort from one field and brought it to another, in the following years they multiplied like crazy and really did a job on the ragwort, but then they just disappeared and the ragwort recovered. It's not in their interest to completely irradicate the ragwort or they would die out as a species, so they move on to neighbouring land when your ragwort becomes the less attractive option. That's when you need to take control before the ragwort bounces back.



  • Registered Users, Registered Users 2 Posts: 731 ✭✭✭PoorFarmer


    In fairness the weather this year is suiting them too. A dry May really helps as the adults get a chance to procreate. Once the eggs are laid weather isn't really much of a problem. Not much of infestation here really for the past 5 or 6 years but I leave what is growing in the grazing fields for them. Will start pulling them from now on before they set to seed.

    I did the same as you to get them to spread. Have a hundred or so carried to the OH place this year just to spread them out a bit. Her neighbour has plenty for them to eat so hopefully they will move over the ditch.

    On a side note, I was in the local town last week and had a fine strong ragwort plant pulled in the public car park before I realised what I was at.



  • Registered Users, Registered Users 2 Posts: 4,230 ✭✭✭kk.man




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