OzBargain's Favourite Weed Killer

What is Ozbargain's community favourite weed killer?

List your brand and pricing. Would be useful if you can share few liners on your experience and best way to use it.

Comments

  • +23 votes

    Boiling water

  • Glyphosate.

    best way to use it.

    Follow the directions on the container.

    • $10 for 360g/litre from many different places
      I normally get it from Mitre 10
      .

    • this has already been proven to be carcinogenic. Even my landscaper recently told me that everyone in the industry is moving away from glyphosate.

      • What are they moving to?

      • +5 votes

        been proven to be carcinogenic

        No it hasn't.

        • -17 votes

          If you truly believe Glyphosphate isnt carcinogenic, you need to drink a cup of it immediately.
          This stuff kills everything living it touches, how would it not be dangerous to humans.

          • @Fincky: This chemical inhibits an enzyme which only exists in plants. Humans and all other animals don't have this enzyme so doesn't effect us in this way.

            Drinking a cup full of any random chemical is a very-very stupid idea btw. Even non-carcinogenic chemicals can easily kill you if you pour a cup full down your throat. Please don't do this.

            • @trapper: No idea how accurate they are but there are a number of studies suggesting gly effects the gut flora of humans, bees and mice, with links to anxiety and depression.

            • @trapper: Biochemistry is not computer software. A complex molecule) can still have an effect on a foreign cell.
              Crude oil has biological effects on humans. BPA has biological effects on humans. Pollen has effects on humans

              It isn't causing the same effect (inhibition of an enzyme), but an effect

            • @trapper:

              Drinking a cup full of any random chemical is a very-very stupid idea btw. Even non-carcinogenic chemicals can easily kill you if you pour a cup full down your throat. Please don't do this.

              So can inhaling mist or vapour, which is exactly how people are coming into contact with it. People aren't getting cancer from asbestos by eating it.

              • @sheamas88: Well he did suggest drinking a cup of it.

                I wouldn't recommend inhaling random chemicals either though. Use PPE if there is any inhalation risk.

              • @sheamas88: You can and will get cancer from eating asbestos, but you'd have to be out of your mind to munch on it.

                Asbestos particles can still land on food and drink and end up in the digestive system.

          • @Fincky:

            If you truly believe Glyphosphate isnt carcinogenic, you need to drink a cup of it immediately.

            Salt isn't carcinogenic. Why don't you eat a cup of it?

            This stuff kills everything living it touches

            Even if that was true (which it isn't) it doesn't mean it is carcinogenic

          • @Fincky: Wow, that's some strong anti-vaxx logic there.

            Were your parents siblings, or just cousins?

            • @picklewizard: I'll go with the lawyers on this one… A class action is serious (costly) business. They wouldn't be doing it off the back of "anti-vaxx logic": https://www.mauriceblackburn.com.au/class-actions/current-cl...

            • @picklewizard: @picklewizard
              Wow, where the hell did you pull anti vaxx from?
              Your way off champ, trying to say Glyphosphate is completely safe is like saying Climate CHANGE is a myth.

              Anyway, I guess i should have elaborated for you boomers on here that were brainwashed as youngins into believing in this miracle product. Now incapable of thinking for yourselves.

              This chemical inhibits an enzyme which only exists in plants.

              Sure, and how about the by products e.g. aminomethylphosphonic acid?
              We know nothing about it or how it interacts with us, soil nutrients, animals, food.
              https://bit.ly/3hDw5uy
              https://www.abc.net.au/news/rural/2020-03-19/international-g...

              Use PPE if there is any inhalation risk.

              Ok, you can safely spray at your house with the correct PPE, what about the airborne particles that head over into your neighbours backyard where they aren't wearing PPE?

              Salt isn't carcinogenic. Why don't you eat a cup of it?

              Ok, over the next month i will, you eat a cup of Glyphosphate over the next month.

              Other reasons its use should be severely limited:
              * Procuct is sprayed in public areas with no warnings, how long does it linger on weeds in playgrounds and then kids play in it?
              * You cant control where this product is, in your food, in our waterways.

              • @Fincky: Never said it was perfectly safe, I said your "drink a cup of it then" argument was stupid and the equivalent of anti-vaxx logic.

                Fluoride is perfectly safe in small doses. Would you drink a cup of it?

                Alcohol is relatively safe in small, infrequent doses. Would you drink a cup of it?

                Arsenic is commonly found in things like rice, and is also considered safe in small doses. Would you eat a cup of it?

                • @picklewizard:

                  Fluoride
                  Arsenic

                  Can you buy either of these in bulk off the supermarket shelf? No.
                  both are heavily regulated and not available to just anyone.

                  And really alcohol?
                  Sure, your shout?
                  Well known are the long term effects of alcohol from centuries of use.

                  • @Fincky: I can buy bulk bleach from woolies. Not gonna go swigging that, and I'm gonna use rubber gloves and avoid getting it in my eyes if I'm using it to clean (like you're supposed to), just like I'll wear proper PPE and make sure it's not too windy when spraying glyphosate (like you're supposed to).

                    • @NigelTufnel: See the thing is you know Bleach is a risk, you are basically proving my point for me.
                      Bleach manufactures aren't going around saying oh this is perfectly safe, spray it all over your Soybean crop as much as you like.

                      Some information for you:
                      https://www.cancerwa.asn.au/resources/cancermyths/chlorine-c...

                      • @Fincky: Dude glyphosate kills almost everything it touches. You'd have to be an idiot not to realise it's a risk if used inappropriately. Nobody here is arguing that.
                        But use it appropriately and follow directions, you'll be fine. Just like bleach.
                        That's the point.

                        • @NigelTufnel:

                          you'll be fine.

                          Yeah, the "well drink some then" is stupid.

                          Vinegar & Salt is also used as a weed-killer (crap, btw) and I don't see ol' @fincky chugging down a cup of that anytime soon.

                          Why not, they're perfectly safe ingredients. Natural even.

                          Probably be safer drinking the RoundUp.

                          • @D C: Jesus christ, i was trying to make a emphatic point https://www.youtube.com/watch?v=AbfJ4VwHIqw

                            Could you drink a cup of salt and vingegar over say a month? Yes.

                            Could you drink a cup of Glyphosate over a month? No bloody way.

                            Then why are we putting it on our food? And it is proven to be on food, links above.

                            • @Fincky: Without even clicking on it, that's that dipshit Monckton, right? Yeah we've all seen it.

                              Could you drink a cup of salt and vingegar over say a month? Yes.

                              Except that wasn't what you said:

                              you need to drink a cup of it immediately.

                              C'mon, drink up. Show us how safe vinegar & salt is. Money where your mouth is.

                              Roundup isn't toxic (much), so drinking it won't kill you. Just because it kills plants doesn't mean it'll kill you.

                              Then why are we putting it on our food?

                              Sigh. Do you even think, bro?

                              You know it'll kill the crop, yeah? Weed-killer and all that? Some farmers do that to make harvesting easier, not really an Oz thing.

                              Then there's RoundUp Ready stuff (I think only canola is grown in Australia) that you can spray whenever, but farmers don't like doing that because spraying costs money.

                              RoundUp was only ever meant to be a pre-planting spray, but why read the instructions.

                              Grain products will contain residue, whether that amount is harmful is yet to be shown. (That said, I'd prefer the level to be zero, risk-adverse and all that, but it doesn't keep me awake at night.)

      • everyone in the industry is moving away from glyphosate.

        It was shown to be carcinogenic in pretty high doses. The sort of contact where a farmer is getting covered in it several times a week and not washing off. It is unsurprising that heavy users are moving away from it.

        However, if you spray a litre or two a few times a year you are more likely to get cancer from splashing fuel on yourself when you top up the mower, or from eating chargrilled meat or dozens of other factors.

        • +5 votes

          It was shown to be carcinogenic in pretty high doses.

          No it wasn't.

          Some studies said yes, others said no, still other said it's additives in the spray, not the glyphosate itself.

          The people the won the lawsuits (appeals still to happen) were spraying EVERYTHING under the sun, who knows what actually caused the cancer.

          Even coffee is classed as a possible carcinogen.

          But yes, long term exposure of anything isn't likely to be good for you, even vitamins, water etc can be toxic. Wash your hands.

          The countries that banned it didn't ban it because it'll give you cancer, it was because people were spraying it everywhere and not giving a fook where it went, and it was stuffing up waterways etc.

          • @D C: As you said caffeine is a potential carcinogen. It's structure is very similar to nicotine, which is a proven carcinogen. Yet it appears safe based on experience.

            In this case we have evidence that something is unsafe. Considering that many compounds that are supposed to cause cancer do not, when we have evidence that something does cause cancer we have to take it seriously.

            The reasoning - it could be other ingredients - is just a cop out, and not good enough from a public health point of view. It is NOT common for compounds to show evidence of causing cancer. It is not the same situation as the media crying wolf for every potential carcinogen

            • +1 vote

              @Superannuation:

              The reasoning - it could be other ingredients - is just a cop out

              Not if it's true.

              The only people getting cancer are heavy users who also used other chemicals (farmers, duh), and in one case with no PPE (cos no-one dun tole me ta do dat).

              We should be seeing an increase in other people, where is it?

              Glyphosate is the safest of the bunch. You can argue vinegar & salt is perfectly safe, and @fincky: https://www.ozbargain.com.au/comment/8868387/redir can drink a glass of that to prove it.

              I'm not going to shower with it, but I'm not going to lose any sleep over it either.

              • @D C:

                We should be seeing an increase in other people, where is it?

                here you go, try using google, heard its a new tool for finding stuff.

                https://www.mja.com.au/journal/2020/212/3/incidence-childhoo...

                Ive used Cancer in Children, as they have less of a bearing on the overall cancer rates increasing due a lot in-part to aging population.

                We as a species do not know why they are increasing, why not limit a known probable causes?

                • @Fincky:

                  why not limit a known probable causes?

                  You mean 5G & WiFi, right?

                  As the paper says: The causes of childhood cancers must be understood before interventions to reduce their incidence can be developed.

                  Yeah, I did RTFM.

                  We've been spraying RoundUp for 50 years ("The plough in a drum!"), and 50 years ago no-one really gave a rats about PPE. If it triggers cancer in kids then there should be an uptick in cancer for everyone. It ain't happening.

                  I have no problem that glyphosate causes cancer in people who are susceptible, long-term heavy users and didn't read the instructions (because that's everything).

                  I do electronics and solder with lead, the "long-term etc" comment applies there but is perfectly safe for everyone else.

                  • @D C:

                    You mean 5G & WiFi, right?

                    Who knows?? but that's not the topic.

                    Why try defend a Probable known carcinogen that gets sprayed around playgrounds?

                    Heck, a minor can walk into bunnings and buy a litre of the stuff for $10.
                    Others have mentioned other known probable carcinogens e.g. alcohol and cigarettes. These are banned from minors & heavily taxed for the rest of us.

                    • @Fincky:

                      Probable known carcinogen

                      Y'know coffee is on that list, right?

                      As before, RoundUp is an old product. Where are all the cancer cases?

                      Heck, a minor can

                      OMG, a literal "Won't someone think of the children!" moment.

                      • @D C:

                        Y'know coffee is on that list, right?

                        No its not https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6140161/

                        You're just being a numpty now.

                        And it used to be a Possible not Probable. Would you like me to define the difference for you champ?

                        • @Fincky: First hit on Google, lol. That some mighty fine research there "champ".

                          Do you even read the links you post?

                          While acrylamide is considered a “probable carcinogen,” probable is certainly not definitive.

                          Sounds like a "maybe yeah, maybe not" to me. Just like glyphosate.

                          Coffee is on the "not found to be safe but probably won't kill you" list. Sounds dangerous to me. Maybe I should sop drinking, can't be too careful right?

                          • @D C:

                            First hit on Google, lol.

                            I was trying to keep it simple for a simple person, seems it didn't work.
                            So, here is the official publication from IARC: http://www.iarc.fr/en/media-centre/pr/2016/pdfs/pr244_E.pdf

                            Page 2:

                            Drinking coffee was not classifiable as to its carcinogenicity to humans (Group 3).

                            But yeah, don't listen to the scientists who are smarter then you, go join the flat earthers.

                            • -1 vote

                              @Fincky:

                              don't listen to the scientists who are smarter then you

                              And definitely don't listen to you, right?

                              So this link, did you read this one? I doubt it.

                              From your link "The Working Group found no conclusive evidence for a carcinogenic effect of drinking coffee." and "The classification does not indicate what level of risk exists to people’s health associated with exposure to a classified hazard."

                              We didn't find any evidence that it directly causes cancer, but we're not willing to rule it out either.

                              Sound familiar?

                              So about the evidence for glyphosate…

                              Personally I reckon those people were all coffee drinkers, and that caused the cancer. Prove me wrong.

                              Y'know what, I'll drink cups of glyphosate if you drink cups of salt water to match. Salt is safe, natural and needed by the body, right? No problem for you then?

        • Heavy users aren't all moving away from it. When used in the correct manner, as per safety instructions Glyphosate is perfectly safe. There are much more dangerous chemicals out there being used.

      • I treat it as carcinogenic as they say steaks are …

        (aka "couldn't give a stuff" for non-regular home use)

      • this has already been proven to be carcinogenic

        No it hasn't

    • I differ, the best way to use it is not to "spray" which is often on the container, but to paint it on with a small brush. That way you can paint it on as a concentrate without worrying too much about the plants around. If you have a noxious weed that is more like a tree, you can scrape off the bark on the trunk and paint it on, or if you really want to get serious I'm about to drill some holes and put it in

  • Sodium chloride. It good for >3 months.

  • +45 votes

    Step 1: Avoid weeding for weeks and weeks
    Step 2: Finally give in and decide to do a spot of weeding
    Step 3: Go overboard and end up spending an entire day weeding well into the early evening
    Step 4: Complain about sore knees and back for a few days
    Step 5: Do not do any spot weeding and let them all grow back
    Step 6: Avoid weeding for weeks and weeks

  • If it's on pavers or gravel then boiling water.

    Otherwise Glyphophosphate mixed to the correct ratio. Don't ad extra as this causes the transport veins within the plant to close and the poison doesn't get back to the root. Sorry, I don't know the technical terms but I work with guys that have doctorates in weed control and they love to share their knowledge.

    • Doctorates in weed control?

      • That's what I thought, but apparently it is a thing. Although I'm sure you could Roundup the course in a few days.

      • chemistry and botany is probably more accurate.

        We have stewardship of thousands of hectares of bushland that we have to keep pests (wild pigs, horses, deer & humans - we shoot the first 3 and arrest the latter) out of. They look after that, I look after thousands of tonnes of concrete.

        and we do a lot of weed control - water hyacynth, willow, etc

  • What sort of weeds have you got? Some Australian weeds are edible :)

  • Pee

  • I use Slasher for weeds anywhere near my rose bushes. It's an organic weed killer that works. Available from Bunnings (and other sources). Apparently roses really don't like glyphosate and can be affected if even the smallest amount gets on them.

    For other general weeds I use glyphosate.

  • I use glyphosate mostly, but boiling water on the driveway.

    Have experimented with the vinegar/salt and dish liquid home brew, but results inconclusive because of the drought. Need to try it again during a growth phase.

  • chooks

  • A lighter.. but I’m unsure if we’re talking about the same types of weed

  • $2.50 and a couple of spare bricks.

    Kills all weeds in a 1.1 x 1.7m area, though can get expensive if you wanted to kill a footy oval size.

  • The most cost effective way is salt plus water.

  • Used engine oil or coolant. Seems to kill off the grass whenever I spill some changing it.

    • There’s two reasons they used to pour a bit of sump oil in the base of the fence posts. It’s frowned upon now for environmental reasons!

      Years ago I had a fuel filler leak a bit when after overfilling the tank and the car sat in the sun. After a couple of months I ended up digging out the spot and putting some new grass in. It just didn’t grow back, the spot I nabbed the grass from grew back in a couple of weeks. . Petrol seems to work a little too well.

  • Slasher organic weed killer. based on a natural extract

  • Roundup

  • Dicamba

  • napalm … will sort out everything in the vicinity

  • Blackberry killer if you want it to stay dead. I've not tried boiling water, seems like a cheep option.

    • It is cheap and very quick to act, but unfortunately isn’t long lasting. As it doesn’t leave any residual, regrowrth is not inhibited.

  • I use a product called Performa M.
    Simply dilute as per instructions and spray over the lawn/grass areas.Kills all broad leaf weeds in a couple of weeks.
    It cost about $27 a litre.

  • Just ask my neighbour to come round, he seems to poison everything in his garden without even trying.

  • Fence a hungry chicken or two around the area you want to weed. Profittt!

    • Go around the neighbourhood advertising your service of organic, natural weeding.