I'm accustomed to applying a grassy weed (i.e - crabgrass)
pre-emergent treatment in the early Spring, but would also like to
do something to prevent broadleaf weeds from coming up in the
Spring. I'm told now is the right time to treat for my area, which
is Northeast Oklahoma. If it matters, the lawn is bermuda.
In the store I find the usual Barricade pre-emergent, which is
mainly for grassy weeds, but supposedly has some effect on
broadleaf weeds as well.
But I also find Greenlight Portrait (Isoxaben), which is
specifically for broadleaf weeds. But, it's twice as expensive as
Barricade, and conspicuously missing from the list of fully
controlled weeds is clover, which is kinda my main thing.
Does anyone here have experience with either of these for broadleaf
weeds? Or, does anyone know what the lawn services apply in the
Fall to control Springtime broadleaf germination?
Pre-emergent now, would not work on spring weeds AFAIK.
How high do you mow it?
Are you /positive/ it's clover (and not Oxalis or Black Medic)?
Once the Bermuda goes dormant, it should be very easy to control weeds that
thrive in cool weather. I'd rather have clover than Bermuda, any day of the
week. Clover is a legume, that's a /very/ good thing to have in a lawn.
-A halo has to fall only a few inches to become a noose.
Around the Central Texas area, County Agents are recommending corn
gluton(sp). They say it is available at nurseries; suggest using it
in early to middle October here, so it ought to about the right time
in north Oklahoma.
They also recommend using it in the spring, but I don't recall the
Around here, NJ, don;t know of anyone that does any pre-emergent for
broadleaf weeds. Generally, a lawn that is made up of good turn and
taken care of should only need some spot broadleaf weed control. As
the OP noted, the pre-emergents used in Spring for crabgrass also
surpress germination of weeds, etc too. Corn gluten is the organic
approach. Don't know how much it costs in OK or TX, but here on the
east coast, it's by far the most expensive pre-emergent. Also takes a
much larger volume of material, which can be an issue. Also, since
most broadleaf continue to germinate over a wide time span, you'd have
to keep applying pre-emergent, which would make it cost ineffective
compared to dealing directly with the problem.
If the OP has clover and really wants to get rid of it, why not just
treat that directly? There are products specifically for clover and
similar that are effective, where general broadleaf weedkiller doesn't
do much. I think Ortho makes one. Clover is harder to deal with
because the leaves are waxy. Once the clover is eradicated, it should
stay under control for awhile.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.