weeds

LSU AgCenter

Virginia buttonweed is one of the worst summer weeds infesting Louisiana turf grasses. The spread of this week has increased tremendously over the past few years.

Virginia buttonweed thrives on wet to moist soils and is highly drought tolerant as well. It has prostrate growing habit and forms dense mats that smother our lawns. It's easily identified by its opposite leaf arrangement and white flowers with a four-star shaped pedal. Sometimes the flowers can have a pink streak through the center of the two sepals.

LSU AgCenter

Many weeds in the landscape can cause a gardener to gripe, but when the weed is specifically named after a gardener's complaints, then you know you have a real problem on your hands.

Gripe weed has become more common in our area over the past decade. You should accept eradication of a weed as impossible, but management and control are well within our reach. Hand-weeding and herbicide on the foliage work well. Shield or cover nearby desired ornamental plans when you're spraying herbicide.

LSU AgCenter

Virginia buttonweed is one of the worst summer weeds infesting Louisiana turf grasses.

Predictions indicated this weed would become a worse-than-average problem this summer, thanks to the summer flooding last year. And the prediction was absolutely correct.


LSU AgCenter

Go down the pesticide aisle at your local nursery. There are so many different herbicides to choose from. There's a difference between the different types of herbicides. But herbicides are just one of the ways to manage weeds.

Mowing your lawn at the right height is actually a very effective management technique against weeds. If you mow your grass at the right height, you'll need much less herbicide to manage weeds.


Allen Owings / LSU AgCenter

It would be nice to think we could take the winter off from worrying about weeds in our landscapes. Unfortunately, there are many weeds that thrive in the mild to cold temperatures of winter, both in our beds and in our lawn.

Don't forget to keep up with weeding this winter. Be proactive. Use mulches.

Mulches are our very best defense against weeds in our beds. Mulches work when the mulch layer is about 2". Mulch works by blocking sunlight from triggering weed seeds to germinate.

LSU AgCenter

Weed control is a constant part of maintaining a landscape, particularly here during our long hot summer. That's something that will never go away. But you do need to make sure you're doing the right things to make sure your efforts produce the best results possible.


Winter weed killers.
LSU AgCenter

It would be nice to think we could take the winter off from worrying about weeds. Unfortunately, there are many weeds that thrive in the mild-to-cold temperatures. 


Carolina moonseed
Acadiana Park Nature Station

Controlling weedy vines requires determination and persistent effort.