Weed killing on lawns

Another section by popular demand. If you want to talk about anything else that grows that is not livestock, herbs, fruit or vegetables here it goes.
sususanan
Tom Good
Tom Good
Posts: 67
Joined: Sun Oct 22, 2017 7:48 am

Weed killing on lawns

Post: # 291473Post sususanan
Sat Jun 23, 2018 6:44 pm

Does it make a difference if you apply weed killer to the lawn when it is very dry compared to when the groud is already moist?

User avatar
Green Aura
Site Admin
Site Admin
Posts: 8738
Joined: Thu Feb 07, 2008 8:16 pm
latitude: 58.569279
longitude: -4.762620
Location: North West Highlands

Re: Weed killing on lawns

Post: # 291474Post Green Aura
Sat Jun 23, 2018 7:26 pm

The instructions on the weedkiller will tell you, but why bother? Grass is fairly useless, unless you've got cows and the weeds at least provide pollen for bees etc.
Maggie

Never doubt that you can change history. You already have. Marge Piercy

Life shrinks or expands in proportion to one's courage. Anais Nin

User avatar
Flo
A selfsufficientish Regular
A selfsufficientish Regular
Posts: 1732
Joined: Sun Mar 30, 2008 10:12 am
Location: Northumberland

Re: Weed killing on lawns

Post: # 291475Post Flo
Sun Jun 24, 2018 5:55 am

You'l do the wrong sort of killing if you put weed killer on lawns when it's very dry. I'm afraid that's usually the best way to kill the lawn.

User avatar
MKG
Site Admin
Site Admin
Posts: 5134
Joined: Fri Mar 07, 2008 5:15 pm
Location: North Notts.

Re: Weed killing on lawns

Post: # 291476Post MKG
Sun Jun 24, 2018 7:47 am

There are thousands of people in this country who go to great lengths to grow weed, and they would hate it to be killed.
What?
Oh - sorry. Wrong kind of weed.
For the right kind of weed, I would have thought that mowing in dry conditions may be more effective. Grass (the green kind) can take that treatment in its stride, but most weeds will be stressed by it, and therefore weakened. For really persistent ones, I have a Fiskars Weed Puller (sorry for brand name, but I can't think of a descriptive name) which gets rid of stuff like dock, thistle - the deep-rooted stuff - very efficiently.
The secret of life is to aim below the head (With thanks to MMM)

User avatar
Weedo
Living the good life
Living the good life
Posts: 364
Joined: Thu Jun 30, 2016 4:47 am
latitude: 35.0886S
longitude: 147.1289E
Location: Collingullie Australia

Re: Weed killing on lawns

Post: # 291488Post Weedo
Tue Jun 26, 2018 10:43 pm

OK; I will be the galah and give a real answer. Yes it does make a difference except for a very limited number of products that you will definately not find on the retail shelf. The majority of herbicides require the product to be absorbed through leaf or root and translocated through the plant to the action site; ergo, the plant must be actively growing for it to work. In dry conditions most plants normally found in lawns will be inactive.

However, I think you would find you would get a similar weed control result by spending the same amount on fertiliser; unless you are aiming for a 100% grass, bowling green type lawn.
The winner of the rat race is still a rat!

sususanan
Tom Good
Tom Good
Posts: 67
Joined: Sun Oct 22, 2017 7:48 am

Re: Weed killing on lawns

Post: # 291490Post sususanan
Wed Jun 27, 2018 2:42 pm

Wouldn't the fertiliser feed the weed as well as the grass and effectively end up with the same ratio of weed to grass?

sususanan
Tom Good
Tom Good
Posts: 67
Joined: Sun Oct 22, 2017 7:48 am

Re: Weed killing on lawns

Post: # 291491Post sususanan
Wed Jun 27, 2018 2:45 pm

lol - I was racking my brain to think of the children's programme with the galah character and couldn't. Then I submitted my reply and all of a sudden it came to me - The Ozlets!

User avatar
Weedo
Living the good life
Living the good life
Posts: 364
Joined: Thu Jun 30, 2016 4:47 am
latitude: 35.0886S
longitude: 147.1289E
Location: Collingullie Australia

Re: Weed killing on lawns

Post: # 291495Post Weedo
Wed Jun 27, 2018 10:44 pm

Depends on what the weed is, most lawn weeds (broadleaf) are annual or biennual and are weak competitors as seedlings. The idea is to provide more competition (grass) that prevents seedlings from establishing - we call this weed resilliance. If you have perrennial weeds then they will need to be removed. Autumn and Spring are the more important times as this is when they germinate so, if there is no space and the grass is taking up the water and sunlight, the seedlings wont survive.

Even if you do go down the herbicide path, you will still need to thicken your lawn to provide competition or the weeds will just fill in the gaps the dead ones leave.
The winner of the rat race is still a rat!

User avatar
Odsox
Site Admin
Site Admin
Posts: 5166
Joined: Tue May 27, 2008 2:21 pm
Location: West Cork, Ireland

Re: Weed killing on lawns

Post: # 291497Post Odsox
Thu Jun 28, 2018 7:08 am

I actually like weeds in my lawn.
It's chock full of daisies, red clover, white clover, buttercup, celandines, violets, self-heal (both blue and the rare white), plantain (although that's not so welcome), plus tiny milkwort and a large patch of wild thyme.
Oh, and a couple of primroses that I have to mow round until late summer.

No boring green slab for me, and no work involved to achieve year round colour. :iconbiggrin:
Tony

Disclaimer: I almost certainly haven't a clue what I'm talking about.

Skippy
Living the good life
Living the good life
Posts: 430
Joined: Mon Jul 16, 2012 5:13 pm
Location: south staffordshire

Re: Weed killing on lawns

Post: # 291498Post Skippy
Thu Jun 28, 2018 7:34 am

I look after a number of people's lawns and constant mowing does seem to get rid of the worst of the weeds if they are a bother. Sometimes physical removal of things like dandelions or others with a deep root may be needed but I try to steer away from weed killers if at all possible.
Probably the best thing to stop things growing is a trampoline . I've a couple at least I go to with a lovely round patch free of weeds ( or owt else for that matter) . So trampolines , closely followed by dogs and kids should stop anyone worrying about a little weed or two.

Skippy
Living the good life
Living the good life
Posts: 430
Joined: Mon Jul 16, 2012 5:13 pm
Location: south staffordshire

Re: Weed killing on lawns

Post: # 291501Post Skippy
Thu Jun 28, 2018 6:28 pm

Weedo wrote:
Wed Jun 27, 2018 10:44 pm
Depends on what the weed is, most lawn weeds (broadleaf) are annual or biennual and are weak competitors as seedlings. The idea is to provide more competition (grass) that prevents seedlings from establishing - we call this weed resilliance. If you have perrennial weeds then they will need to be removed. Autumn and Spring are the more important times as this is when they germinate so, if there is no space and the grass is taking up the water and sunlight, the seedlings wont survive.
Good points and I will add to that by saying what helps the grass outcompete the weeds is to not have the lawnmower set too low. I have one customer who insists I set my mower as low as it will go and is cut weekly . firstly there are a few spots where the blade has hit the bumps in the ground but perhaps more importantly is that there are low lying weeds . Compare that to another I also do weekly where I cut it on the third setting rather than the first and it's a much better , lusher lawn almost devoid of weeds.

ina
A selfsufficientish Regular
A selfsufficientish Regular
Posts: 7786
Joined: Sun May 22, 2005 9:16 pm
Location: Kincardineshire, Scotland

Re: Weed killing on lawns

Post: # 291540Post ina
Mon Jul 02, 2018 6:09 pm

The only weed I try to keep out of my "lawn" (= grassy patch) is docks; everything else gets encouraged... Since I moved in here a lovely lot of white clover and tares have developed. Bees and other beasties love it!
Ina
I'm a size 10, really; I wear a 20 for comfort. (Gina Yashere)

Skippy
Living the good life
Living the good life
Posts: 430
Joined: Mon Jul 16, 2012 5:13 pm
Location: south staffordshire

Re: Weed killing on lawns

Post: # 291541Post Skippy
Tue Jul 03, 2018 7:26 am

I always think clover , white or red , give a lawn a bit of colour and character . A slab of just perfectly green grass might be loved by some but I find it just a tad dull.

ina
A selfsufficientish Regular
A selfsufficientish Regular
Posts: 7786
Joined: Sun May 22, 2005 9:16 pm
Location: Kincardineshire, Scotland

Re: Weed killing on lawns

Post: # 291543Post ina
Tue Jul 03, 2018 8:05 am

Skippy wrote:
Tue Jul 03, 2018 7:26 am
I always think clover , white or red , give a lawn a bit of colour and character . A slab of just perfectly green grass might be loved by some but I find it just a tad dull.
At least it's better than the usual grey mass of chuckies in most of my neighbours' gardens... But those that do have lawns keep them far too short - even in this scorching weather; they are now nothing like green and look terrible!
Ina
I'm a size 10, really; I wear a 20 for comfort. (Gina Yashere)

User avatar
KathyLauren
Living the good life
Living the good life
Posts: 428
Joined: Wed Aug 05, 2009 11:57 pm
latitude: 44.5
longitude: -66
Location: East Coast of Canada

Re: Weed killing on lawns

Post: # 291545Post KathyLauren
Sat Jul 07, 2018 10:25 pm

In a lot of places here, the use of herbicides for cosmetic purposes (i.e. killing weeds in a lawn) is not permitted. We like a "lawn" that looks like reclaimed forest floor. When we have bare patches, we seed them with a mix of grass and clover seed.

Post Reply