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Thread: Lawn herbicides

  1. #61
    Senior Member PaulG's Avatar
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    Default Re: Lawn herbicides

    It's mainly home owners to blame for overuse and incorrect use of such products (as was found in the North American research as far back as 2005) and contractors just got lumped into the same lot and suffered the same criticisms. The main reason Canada banned it is because of the Dicamba and MCPA (which is the same chemical family as 2,4-D). Any lawnie or gardener worth his salt should know how to spray, what to use, and when, for specific results rather than a blanket spray with weed & feed but Kamba-M and similar sprays for broadleaf weeds contain the same chemicals so I wonder how long before we see a push here as well to ban them.

    I think your comment about 'outright lawn death' is a bit extreme though.

  2. #62
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    Default Re: Lawn herbicides

    I use a product called Methar Tri Kombi works really well on most broadleaf and oxalis

  3. #63
    Senior Member PaulG's Avatar
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    Default Re: Lawn herbicides

    Quote Originally Posted by ernielg View Post
    I use a product called Methar Tri Kombi works really well on most broadleaf and oxalis
    Essentially the same as Kamba.

  4. #64
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    Default Re: Lawn herbicides

    Evening boys and girls,
    Got a couple of questions regarding particular weeds that I hope the vast knowledge on here can help me with. Like most I use Kamba regularly and Sempra on nut grass and mullumbimby but on my own place and on a couple of clients lawns (I assume because of all the wet weather recently) broad leaf carpet grass is getting a bit of a foot hold in the blue couch. In green couch lawns I have great success with trinoc (DSMA) but the bottle states this will kill the blue couch also, an assisstant green keeper mate (who put me on to the trinoc)suggested playing around with the mixing rates and finding a point at which the blue couch will yellow but come back and after a couple of hits the broad leaf carpet is no more. Even on my place this makes me a bit nervous so do any of you guys have any experience wth this situation or aware of a product that will do the job for me.

    Regards,
    Sharpie.

  5. #65
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    Default Re: Lawn herbicides

    carpet grass is supposed to be susceptible to Bromoxynil http://en.wikipedia.org/wiki/Bromoxynil and DSMA but blue couch is also listed as susceptible to DSMA but can't see if it is susceptible to Bromoxynil so maybe try a bromoxynil only herbicide like BROMICIDE 200 on a small area and let us know how it goes
    you could also try this http://www.yates.com.au/products/wee...on-weedkiller/ it says it's ok for queensland blue and it contains bromoxynil so may work
    Anything Ian says may or may not be garbage, it may also be his own opinion or it may not be his opinion at all, it may just be something he felt like stating anyone following his advice does so at their own risk and may be doing something Ian would actually advise against.
    And if you don't like what Ian has to say use the ignore function if you don't know how ask i will gladly tell you

  6. #66
    Member sharpie's Avatar
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    Default Re: Lawn herbicides

    Thanks Ian, I will have a look for it tomorrow and let you how it works should it ever stop raining for long enough to use it.

    Sharpie.

  7. #67
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    Default Re: Lawn herbicides

    there's also buffalo master http://www.searles.com.au/pdf/Buffal...er%20Label.pdf and other similar broadleaf products
    Anything Ian says may or may not be garbage, it may also be his own opinion or it may not be his opinion at all, it may just be something he felt like stating anyone following his advice does so at their own risk and may be doing something Ian would actually advise against.
    And if you don't like what Ian has to say use the ignore function if you don't know how ask i will gladly tell you

  8. #68
    Senior Member PaulG's Avatar
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    Default Re: Lawn herbicides

    Winter is the growth period for a lot of these types of weeds. I'm spraying lawns here currently using Kamba. Well when it's not raining at least.

    It works but takes at least 2 to 3 weeks in cooler weather for the weeds to really start to die off. There's plenty of products out there other than Kamba like Kleen Lawn, Bin-die, multi-weed etc; just depends on what's actually growing and what the type of lawn is - Couch, Buffalo etc. A follow up spray will probably be necessary if it's a 'carpet' like you say.

  9. #69
    Senior Member PaulG's Avatar
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    Default Re: Lawn herbicides

    Winter is the growth period for a lot of these types of weeds. I'm spraying lawns here currently using Kamba. Well when it's not raining at least.

    It works but takes at least 2 to 3 weeks in cooler weather for the weeds to really start to die off. There's plenty of products out there other than Kamba like Kleen Lawn, Bin-die, multi-weed etc; just depends on what's actually growing and what the type of lawn is - Couch, Buffalo etc. A follow up spray will probably be necessary if it's a 'carpet' like you say.



    EDIT: ^^^^^^ Hey Simmo answer's up here. Stupid out of order posts again!

  10. #70
    Senior Member Lawn Mowing Professionals's Avatar
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    Default Re: Lawn herbicides

    I am getting a heap of clients "whinging" that they have clover and weeds in there lawns that have just appeared over the past few weeks.

    I went to a place today and this clover blanket looking weeds (not sure of the name) were covering 90% of the lawn and were quite high and thick. A second place I did was also quite bad about 50% coverage of regular clover and the owner had a bottle of round up for me to apply to the lawn

    My question is... Can I get rid of these weeds during winter? If so, what should I use and when should I apply it?



    Simmo.

  11. #71
    Member Back to Basics's Avatar
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    Default Re: Lawn herbicides

    Ian or anyone with advice would the both of these work in a garden situation? I have a client with clover in his gardens on the zoyzia clumps etc. Would it be safe to spray near other plants situated in the gardens e.g. cordylines, agaves, bromeliads.
    Life's a garden, dig it! Life's a garden, dig it!

  12. #72
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    Default Re: Lawn herbicides

    Ian or anyone with advice would the both of these work in a garden situation? I have a client with clover in his gardens on the zoyzia clumps etc. Would it be safe to spray near other plants situated in the gardens e.g. cordylines, agaves, bromeliads.

    Also when mixing Sempra it says to use within 24 hours, 1.3g mixes with 10l of water. It comes with the scoop etc but 10l is a lot to use in one day especially if you only have a couple of clients suffering from Nut Grass. Does anyone keep this stored in a container, mixed. If so for how long will it keep mixed up for.

    I was going to buy a specialised contained for it to remain mixed in. Good idea? Bad idea? Happy to hear any ideas???????
    Life's a garden, dig it! Life's a garden, dig it!

  13. #73
    Senior Member seliment's Avatar
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    Default Re: Lawn herbicides

    Quote Originally Posted by Back to Basics View Post

    Also when mixing Sempra it says to use within 24 hours, 1.3g mixes with 10l of water. It comes with the scoop etc but 10l is a lot to use in one day especially if you only have a couple of clients suffering from Nut Grass. Does anyone keep this stored in a container, mixed. If so for how long will it keep mixed up for.

    I was going to buy a specialised contained for it to remain mixed in. Good idea? Bad idea? Happy to hear any ideas???????
    If thats what the manufacturer suggests, then its probably not good to keep it mixed as it probably degrades.

    Why not mix up a smaller quantity? ----
    The rate (1.3gm / 10 litres) is a small quantity , so why not invest in a small digital scales for the purpose.
    You can pick up ones on ebay quite cheaply that have a resolution of 10mg (0.01grams) and max capacity of 50 - 100grams.
    Measuring out small quantities is then a piece of cake.

    Other method (not exact but pretty good for most practical purposes) from my days of yore when studying&working in science labs and you want smaller quantities than your scales can measure ...

    Weigh or measure out a (known) quantity that you can easily measure and put it onto a piece of paper or similar.
    Arrange it into a uniformly shaped pile or line and then divide it into (equally) sized portions to get the amount you want.

    This is much better than trying to estimate say "half a measure" to mix up say 5 litres , unless the measure is calibrated.

    Joe.

  14. #74
    Senior Member PaulG's Avatar
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    Default Re: Lawn herbicides

    I do what Joe suggested re Sempra. I bought the digi scales and a 2 litre sprayer specifically for nut-grass/Mullumbimby couch jobs that are on the small side. It's hard trying to estimate .26 of a gram using the scoop they provide!

    I've also done larger spray jobs using the recommended application rate also but always mix up and use only enough for that job.

  15. #75
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    Default Re: Lawn herbicides

    As I thought Seliment, but was chasing another alternative, being lazy! Off to Dick Smith I go to get some scales. I already have the 2l spray pack. Nut Grass look out!!!!!!
    Life's a garden, dig it! Life's a garden, dig it!

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