How soon after planting grass can I use weed killer?
The general rule of thumb for an application of a broadleaf weed killer, such as 24d, is to wait at least until you have mowed the new grass at least four times. Avoid applying a pre-emergent to a newly seeded lawn for at least 3-4 months.
When can you put weed and feed on new grass?
For sodding, sprigging or plugging, wait four weeks before you weed & feed so new grass can start without delay.
Can I put weed killer on a new lawn?
Weed killer herbicides such as Quinclorac and Tenacity (Mesotrione) can be applied to new lawns 28-30 days after emergence. A good general rule of thumb is to wait until you have mowed your new grass at least two times before spraying.
Should I mow before applying weed and feed?
It is recommended that you mow a few days before applying weed and feed and that you wait a few days after applying to mow again. This ensures that the herbicide -- the "weed" part of weed and feed -- has time to be absorbed through the leaves of the weeds and can begin to work.
When to put Scotts weed and feed on grass?
When to apply. Apply when weeds are actively growing and daytime temperatures are between 60°F and 90°F. In the northern US, weeds are most active April-September. In the southern US, weeds are most active March-September.
How do you weed a new lawn?
1:034:46If you can wait till closer to germination say your grass is going to germinate on day seven whichMoreIf you can wait till closer to germination say your grass is going to germinate on day seven which no one knows it could be at any time. So you want to be a little earlier than too late.
Does weed killer affect grass seed?
As a general rule of thumb when it comes to weed control and new grass, the best recommendation is to wait. Herbicides applied too soon after grass germination can have adverse effects such as killing the young stand or weakening it, thus greatly reducing the amount of time it takes to fill in.