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roundup mix rate

  • 07-07-2012 9:56am
    #1
    lawnmower_man
    Banned (with Prison Access) Posts: 51 ✭✭


    hello

    i asked the same question in the gardening section and i thought i might check in here too

    what ratio of roundup to water should you use when spraying round the garden with a knapsack

    thanks in advance


    ps , i have an old container of roundup and the directions are missing , not that im too lazy to read them


Comments

  • #2
    pms7
    Registered Users, Registered Users 2 Posts: 483 ✭✭pms7


    10cc / 1 litre water works for me


  • #3
    lawnmower_man
    Banned (with Prison Access) Posts: 51 ✭✭lawnmower_man


    pms7 wrote: »
    10cc / 1 litre water works for me

    is a cc the same as a mm ( mililitre ) , if it is then that is a ratio of 1 to 100 ?


  • #4
    pms7
    Registered Users, Registered Users 2 Posts: 483 ✭✭pms7


    Correct.
    Just relooked at tractor sprayer rate (2.5L/ac)and it is around 1:30, and knapsack puts out less volume, so is 1:100 way too little?
    Still it depends what killing, higher rates for scutch grass + docks.
    By the way I am not a spray expert..


  • #5
    dar31
    Registered Users, Registered Users 2 Posts: 1,704 ✭✭✭dar31


    pms7 wrote: »
    10cc / 1 litre water works for me

    reckon your right, i usually put 200ml in to 20l knapsack, and a bit of simazine


  • #6
    flat out !!
    Registered Users, Registered Users 2 Posts: 157 ✭✭flat out !!


    dar31 wrote: »
    reckon your right, i usually put 200ml in to 20l knapsack, and a bit of simazine
    Is simazine still on the market.? I haven't seen it for ages.


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  • #7
    lawnmower_man
    Banned (with Prison Access) Posts: 51 ✭✭lawnmower_man


    according to a site i checked out , the ratio is 40 : 1

    100:1 seemed very little


  • #8
    Farmer Pudsey
    Registered Users, Registered Users 2 Posts: 6,326 ✭✭✭Farmer Pudsey


    I usually go 20-30mls/litre depening what I am spraying for if I am spraying the drive/patio I even put it in stronger especially the firest time in the spring. you do not want to be walking at 1/2 mile an hour.

    Simazine is off the market 3-4 years you must have it a long time can I have some for the drive.


  • #9
    brian_t
    Registered Users, Registered Users 2 Posts: 6,787 ✭✭✭brian_t


    Farmer Pudsey wrote: »
    30mls/litre.

    +1
    As recommended by Monsanto http://www.roundup-garden.com/how-much-roundup-do-i-need.aspx


  • #10
    have2flushtwice
    Registered Users, Registered Users 2 Posts: 1,434 ✭✭✭have2flushtwice


    I put in 500ml (small coke bottle) into the 50 litre sprayer, which is 100 to 1 ratio also.

    the thing about roundup is that it only kills whats there. it doesnt stop regrowth within a few weeks.
    can you add another chemical in with the roundup and do two jobs at once?!


  • #11
    JohnBoy
    Registered Users, Registered Users 2 Posts: 2,342 ✭✭✭JohnBoy


    I thought simaziene was gone nearly ten years now.


    has anyone used premazor yet?

    it's a simaziene style additive that dairygold are selling.


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