Roundup Question

i am going to spray all the weeds and unwanted grass in preparation for turfing in 2 weekends time. We are getting 10 metres of underturf delivered tomorrow arvo and i was just wondering if i spray this afternoon, am i able to start spreading the underturf over the sprayed weeds the day after?? or should i be waiting?

Cheers

As I understand it - and we have 25 acres with 1 or 2 weeds - stressed weeds are hard to kill. I would think covering them may work against the roundup.

Ed

thanks ed appreciate it. i might get the soil delivered next week. and wait for the roundup to do its thing..

weeds should be removed at best or at min. rotary hoed in then soil, conditioner or lawn starter , turf then washed sand

ok cool thanks davinci

round up will need quite a few days on the weeds and the weeds need to be exposed to light to absorb it and get it through the system.

after 10 days it is considered safe to plant in the soil as is is a type of salt that breaks down into what is considered harmless compounds. You are putting soil on top though so you may get away with it before then.

spray in the morning, make sure it doesn't rain and it has a whole day to be soaked up by the unsuspecting weed I like to suggest a few drops of dishwashing liquid and a teaspoon of urea or cap full of seasol in the sprayer to "trick" the weed into absorbing the roundup rapidly an more effectively.

as davinci says, rotary hoe the weeds into the soil. they won't be back

seasol in sprayer with glyco. good tip will try it

For others reading this looking to kill off turf in garden beds or in lawn areas about to be removed for paving there is a better answer.

There is a spray called "fusilade" available from ag suppliers. smallest quantities sold is 1ltr and that covers about 1 hectare! It costs around the $150 mark. (what does a bobcat cost?) It works the oposite to weed and feed type lawn herbicides. It won't harm your roses or shrubs (or broad leaf weeds) but will 100% guaranteed kill any grass, palm, agapanthus (all monocot plants) it touches. dead. and fast!

Now this stuff is not freindly but safe to use provided you wear a mask, long sleeves and long pants, covered shoes and don't spray in windy conditions or before rain and retic. spray in the morning too so it has the whole day of sunlight to be absorbed through the leaves.

couch gone, buffalo gone, kikuyu GONE! mmmuuuu hahahahh

Weed killers work best within a couple of days of rainfall. If there has been no rainfall for a week or more causing the weeds to be under stress (especially blackberries & ragwort), then the weedkiller will be wasted as they won't be affected.

Ed

ahh but add seasol and then see that turned on it's head

Are you sure it will work? Many acres, many years, many blackberries, many ragwort.. the metabolism slows to a stop in drought - it's only water through the root system that makes the plant breathe again and then it will succumb to the weed killer. If you think it will work I will try, but I have my doubts...

I have been using seasol in with various herbicides for about 3 years now, it improves the results by miles! Especially when using glypho products.

It has allowed me to spray when I normally may not and still maintain results. (ie in heat)
No doubt what you say is correct and spraying after rain is a good idea but not always practical in summer. Add the seasol and you will still get results, not as goos as at the particular time you have mentioned but results none the less which is great when you can't pick and choose your spray days too much

Great, thanks for the tip... what dilution should I add Seasol?

And by the way - how much has Glypho increased in price????

I used to buy for $6/litre - cheapest is $20...

I use about 6-10ml p/ ltr normally. If spraying will be hard to do I would suggest bumping it up to 15ml per/ ltr.

For urea it is one teaspoon per 5 ltrs or thereabouts.

This thread has reminded me to talk about a product that we are using to kill a few stray blackberries in our back yard.

It is called Garlon 600, available from ag suppliers, and similar to other poisons, costs well over $100 for a litre. The results are impressive though. You don't have to wait until the blackberries are in flower, unlike some other specialist blackberry poisons, and once diluted a little bit goes a long way. Roundup is hopeless on blackberries in our experience.

We had most of the blackberries cleared during winter with a backhoe to try to get a handle on them in the back paddocks.... now they are coming through fiercley....at least they are manageable at this point... so I will try Garlon 600.....I had been using Grazon previously.....maybe its time they had a change of diet

good stuff that. The same as the domestic blackberry and woody weed killers but far far stronger concentration of tryclopyr which is what is in it

...well not good for us. nasty stuff but good in the sencse that when used safely it is about the only effective means to an end for the blackberries.

Just about to spray Garlon... do you recommend Seasol with this too?

And what's best for bracken? Garlon doesn't work.

Thanks
Ed

well Ed the stuff you are using is Triclopyr, just another brand name with it as an active ingredient.

Having been lucky not to have encountered bracken fern, can not say what will be good for it.

It's ineffectiveness so far may lay in the fact that Ferns take up nutrients and water very slowly.

If i said what to use I would be making it up.

Sorry you just found my Kryptonite

What you can be assured of is that adding seasol to whatever herbicide is effective will "amplify" it's effect just as well.