Weed Killer

LeeUK

LeeUK

LeeUK

Soldato
Joined
1 Mar 2008
Posts
6,350
Location
Deep North
What is everyone using these days? What is the best type/brand?

I bought a big 5L bottle of Roundup with the pump sprayer on. I got a huge patch of misc weeds in my back yard along with little weeds growing up at the edges of the walls and around about places etc. I sprayed the whole lot on Monday night and again 48hrs later last night.

Only the little odd weeds around about are dying off. The huge patch full of docks, prickly nettles and other weird stuff doesn't show any signs of dying off. It's never rained between the 2 applications either.
 
Some stuff like brambles are particularly resistant, and I find SBK Brushwood Killer works better. It gets into the roots and kills the plant off, so it's good for stuff that has deep taproots or can come back from a tiny piece of root. It doesn't work on some types of plants (like grass), which is good if you're spraying on a lawn. It does mean you also need something like Roundup for plants the SBK stuff doesn't work on.
 
Yeah brushwood killer for brambles etc

For normal weedkiller you can get a decent bottle of glycophospahte in tesco for I think £6/8 which is basically all roundup is

If you use a lareg amount of it then you can buy "professional" versions in like 5l containers on ebay etc.

Its basically all the same stuff just in slightly different strengths, and with othre odd chemicals added to "enhance performance".
Just buy the cheapest you can find thats undiluted and make it a little stronger for particularly persistent areas.
 
Personally in those circumstances I start by strimming, then when they start to grow back treat them
As the plants are smaller you get the product much closer to the source.

If you have a tesco near you go and grab a bottle of the glyco in a week if the roundup hasnt worked.
It does take some time as the chemical works its way into the plant.

Weaker weed killers look like they work a lot faster but don't really do the job. You want to kill the source not just the visible leaves
 
I bought the little red bottle of glycopho..... from Tesco and put it in a hand held sprayer. Its made light work of a variety of weeds so far and is slowly killing some ivy too
 
Thanks I'll get some of that Elixir as not near a Tesco. I'll reuse the Roundup pump spray bottle unless it is sealed for single use.
 
Mercenary Keyboard Warrior said:
Personally in those circumstances I start by strimming, then when they start to grow back treat them
As the plants are smaller you get the product much closer to the source.

If you have a tesco near you go and grab a bottle of the glyco in a week if the roundup hasnt worked.
It does take some time as the chemical works its way into the plant.

Weaker weed killers look like they work a lot faster but don't really do the job. You want to kill the source not just the visible leaves
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I'd argue the opposite. If you have a particularly stubborn weed that grows back from the root then the more leaf surface area the better as it'll absorb more. I'm currently dealing with Creeping Bellflower which is an invasive pest over here and acts like Ground Elder but has a large rhizome. The only way I can kill it is to let it grow tall and then hit it with Roundup just before it flowers. Any other time and all it does is wilt the leaves and regrows from the rhizome.

If you're using a lot of weed killer definitely get the concentrated stuff and mix it yourself, you'll save a lot of cash doing so.
 
DXP55 said:
This is the stuff you need

https://www.pitchcare.com/shop/professional-total-weed-killers/amenity-glyphosate-xl-5l.html
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Or save some money and get it on ebay.
https://www.ebay.co.uk/p/Barclay-Gallup-XL-Glyphosate-Weedkiller-5L/1081091373?iid=332612170889&var=541719871724&_trkparms=aid=222007&algo=SIM.MBE&ao=2&asc=50546&meid=b29b94da71734a7b8d2afe0133768a54&pid=100005&rk=5&rkt=12&mehot=pp&sd=332612170889&itm=541719871724&_trksid=p2047675.c100005.m1851

I go through tonnes of the stuff, keeping Horsetail at bay in our front and back garden, although in the front around the driveway i use stronger chemicals as glyphosate is a bit weak but health and safety stopped production of the strong stuff.
 
Amp34 said:
I'd argue the opposite. If you have a particularly stubborn weed that grows back from the root then the more leaf surface area the better as it'll absorb more. I'm currently dealing with Creeping Bellflower which is an invasive pest over here and acts like Ground Elder but has a large rhizome. The only way I can kill it is to let it grow tall and then hit it with Roundup just before it flowers. Any other time and all it does is wilt the leaves and regrows from the rhizome.

If you're using a lot of weed killer definitely get the concentrated stuff and mix it yourself, you'll save a lot of cash doing so.
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Rhizome based weeds are diff to be honest, the whole cycle is different.
Normal weeds have a fast cycle trying to grow by increasing roots so they quickly absorb and transfer the chemical where it needs to get to, and they are done.

Rhizome are trying to build a future energy store and thats always growing, if any part isnt killed you have the thing just start again.

Couch grass is the same, any small tiny piece and before you know it its off. Couch grass (allotmenteers bane) is easiest killed by light starvation.
Of if you need the ground quicker you can physically remove as much as possible and then treat the growth as it happens, worst thing you can do is let it get hold.
The absolute worst thing you can do is to rotivate it back into the ground. You literally chop up the roots and get 10x more starting to grow!
Luckily we have a professional groundsman at our allotments so thats the advice he gives as we repeatedly have issues with couch grass as its native to the area, and with plots repeatedly going fallow it just never goes away.

The one advantage of rhizome compared to normal weeds is that once you get on top if it, its way easier to control as it needs to spread under the ground, where as normal weeds are air borne seeds, so literally any open ground will sooner or later get something land on it and germinate
 
robj20 said:
Or save some money and get it on ebay.
https://www.ebay.co.uk/p/Barclay-Gallup-XL-Glyphosate-Weedkiller-5L/1081091373?iid=332612170889&var=541719871724&_trkparms=aid=222007&algo=SIM.MBE&ao=2&asc=50546&meid=b29b94da71734a7b8d2afe0133768a54&pid=100005&rk=5&rkt=12&mehot=pp&sd=332612170889&itm=541719871724&_trksid=p2047675.c100005.m1851

I go through tonnes of the stuff, keeping Horsetail at bay in our front and back garden, although in the front around the driveway i use stronger chemicals as glyphosate is a bit weak but health and safety stopped production of the strong stuff.
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Horses tail is a night mare - we rented a house for 18 months which had a garden full of it - in end I gave up with grass lawn and just mowed horses tail - it was that bad. - we did find out the gardens were a overflow pond for old canal that ran along bank a few houses away.

I also thought it was hard to kill because it has waxy stem and foliage - a tip I had was beat it up a bit with a spade to damage all stems then spray with glyso. - I do not envy you at all - you obviously live in a wet ground area.

I bought my 5l a while back from ebay for £30 which isn't bad when you consider my last 5 lts cost same 30 yrs ago.
 
DXP55 said:
Horses tail is a night mare - we rented a house for 18 months which had a garden full of it - in end I gave up with grass lawn and just mowed horses tail - it was that bad. - we did find out the gardens were a overflow pond for old canal that ran along bank a few houses away.

I also thought it was hard to kill because it has waxy stem and foliage - a tip I had was beat it up a bit with a spade to damage all stems then spray with glyso. - I do not envy you at all - you obviously live in a wet ground area.

I bought my 5l a while back from ebay for £30 which isn't bad when you consider my last 5 lts cost same 30 yrs ago.
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I started using sodium chlorate that kills it with ease on the patio areas, but yes my dad gave me the best tip, rubber glove on, followed by a wool glove dip your hand in glyphosate and work it into the horse tail works to an extent but the neighbour doesnt deal with his so it soon comes back up on my side.
 
I since used the stuff in the white bottle off Amazon and used it again this summer to clear my front garden of willow herb and it worked a treat. Only thing I'm having a problem with is the sycamore tree saplings, while the stuff kills all the leaves and they appear dead for a few weeks then all of a sudden they spring back into life.

Really need to get someone in to do something with the stumps.
 
robj20 said:
I started using sodium chlorate that kills it with ease on the patio areas, but yes my dad gave me the best tip, rubber glove on, followed by a wool glove dip your hand in glyphosate and work it into the horse tail works to an extent but the neighbour doesnt deal with his so it soon comes back up on my side.
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Just stamp on them, apart the killer on and bobs your uncle.

They have a wax like coating so you have to bruise them so the weedkiller gets into it.
 
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