Home |
Search |
Today's Posts |
|
#1
|
|||
|
|||
crabgrass in St. Augustine
My lawn went from less than 10% St. Augustine to over 80% in just a few
years with only occasional watering and regular mowing. It overcame everything but crabgrass, which came in a couple years ago when there was a total ban on watering in Pflugerville. The crabgrass is very thick, thicker even than the St. Augustine. They've battled each other to a standstill. Is there something I can use to knock back the crabgrass and give the St. Augustine a chance to move in? I read about using pre-emergents but it's too late for that now. Anything else? thanks, --steve |
#2
|
|||
|
|||
crabgrass in St. Augustine
Steve Ravet wrote in message ...
My lawn went from less than 10% St. Augustine to over 80% in just a few years with only occasional watering and regular mowing. It overcame everything but crabgrass, which came in a couple years ago when there was a total ban on watering in Pflugerville. The crabgrass is very thick, thicker even than the St. Augustine. They've battled each other to a standstill. Is there something I can use to knock back the crabgrass and give the St. Augustine a chance to move in? I read about using pre-emergents but it's too late for that now. Anything else? thanks, --steve Asulox was labeled for postemergence control in St. Augustine grass turf. A single application at 5 pints per acre was recommended for crabgrass control in St. Augustine grass. It worked, but Asulox is no longer available for crabgrass control. It was universally used for that purpose and since its withdrawal from the marketplace no substitute has been made available. Summer control of crabgrass is done by hand weeding or with a herbicide that kills both the crabgrass and the desired plants. Most species of crabgrass are annuals, and are killed by winter's cold. Crabgrass is best controlled in late February or March by application of a pre-emergence herbicide. These herbicides claim to work, but I have had no success with them. This leaves hand weeding of crabgrass and planting St. Augustine plugs. |
#3
|
|||
|
|||
crabgrass in St. Augustine
"Steve Ravet" wrote in message
... My lawn went from less than 10% St. Augustine to over 80% in just a few years with only occasional watering and regular mowing. It overcame everything but crabgrass, which came in a couple years ago when there was a total ban on watering in Pflugerville. The crabgrass is very thick, thicker even than the St. Augustine. They've battled each other to a standstill. Is there something I can use to knock back the crabgrass and give the St. Augustine a chance to move in? I read about using pre-emergents but it's too late for that now. Anything else? You've run into the biggest problem with St. Augustine. The best way to take care of it is to apply pre-emergence products in Jan-Feb. If we have a warm winter and the crabgrass doesn't die in the winter (crabgrass is an annual) you can use round-up and as long as your St. Augustine is dormant and not green, it won't harm it. You can also hit it with round-up now. It will kill the surrounding St. Augustine. 1 week later put a plug of St. Augustine in the middle of the sprayed area. A product called Image will kill crabgrass in the summer. I've never had St. Augustine so I don't know how harmful the stuff is to St. Augustine, but the label says it's OK. It's quite expensive. A small bottle will run you almost $30 and will only make a few gallons. I would use it in a test area to see how it affects your grass. If chemicals don't work, keep the crabgrass mowed short at all times. Crabgrass grows faster than grass. When you mow it, the crabgrass has to use energy stored in it's roots to recover. So if you are constantly keeping it mowed down, it will have a harder time than the St. Augustine will. Also it has to get taller to put out seed which will cause problems next year. |
#4
|
|||
|
|||
crabgrass in St. Augustine
You've run into the biggest problem with St. Augustine. The best way to
take care of it is to apply pre-emergence products in Jan-Feb. If we have a warm winter and the crabgrass doesn't die in the winter (crabgrass is an annual) you can use round-up and as long as your St. Augustine is dormant and not green, it won't harm it. You can also hit it with round-up now. It will kill the surrounding St. Augustine. 1 week later put a plug of St. Augustine in the middle of the sprayed area. A product called Image will kill crabgrass in the summer. I've never had St. Augustine so I don't know how harmful the stuff is to St. Augustine, but the label says it's OK. It's quite expensive. A small bottle will run you almost $30 and will only make a few gallons. I would use it in a test area to see how it affects your grass. If chemicals don't work, keep the crabgrass mowed short at all times. Crabgrass grows faster than grass. When you mow it, the crabgrass has to use energy stored in it's roots to recover. So if you are constantly keeping it mowed down, it will have a harder time than the St. Augustine will. Also it has to get taller to put out seed which will cause problems next year. Thanks for the product tip Roy, maybe Image will do the job. http://www.pestproducts.com/herbicides/image.htm#Summer |
#5
|
|||
|
|||
crabgrass in St. Augustine
"Garry Denke" wrote in message
m... You've run into the biggest problem with St. Augustine. The best way to take care of it is to apply pre-emergence products in Jan-Feb. If we have a warm winter and the crabgrass doesn't die in the winter (crabgrass is an annual) you can use round-up and as long as your St. Augustine is dormant and not green, it won't harm it. You can also hit it with round-up now. It will kill the surrounding St. Augustine. 1 week later put a plug of St. Augustine in the middle of the sprayed area. A product called Image will kill crabgrass in the summer. I've never had St. Augustine so I don't know how harmful the stuff is to St. Augustine, but the label says it's OK. It's quite expensive. A small bottle will run you almost $30 and will only make a few gallons. I would use it in a test area to see how it affects your grass. If chemicals don't work, keep the crabgrass mowed short at all times. Crabgrass grows faster than grass. When you mow it, the crabgrass has to use energy stored in it's roots to recover. So if you are constantly keeping it mowed down, it will have a harder time than the St. Augustine will. Also it has to get taller to put out seed which will cause problems next year. Thanks for the product tip Roy, maybe Image will do the job. http://www.pestproducts.com/herbicides/image.htm#Summer Just remember Image takes a LONG time to work. You won't notice any difference for 1-2 weeks, and it might take 3-4 weeks before it kills the crabgrass. Be patient when using it. |
#6
|
|||
|
|||
crabgrass in St. Augustine
Thanks for the product tip Roy, maybe Image will do the job.
http://www.pestproducts.com/herbicides/image.htm#Summer Just remember Image takes a LONG time to work. You won't notice any difference for 1-2 weeks, and it might take 3-4 weeks before it kills the crabgrass. Be patient when using it. Thanks again. |
#7
|
|||
|
|||
crabgrass in St. Augustine
Thanks for the product tip Roy, maybe Image will do the job.
http://www.pestproducts.com/herbicides/image.htm#Summer Just remember Image takes a LONG time to work. You won't notice any difference for 1-2 weeks, and it might take 3-4 weeks before it kills the crabgrass. Be patient when using it. Thanks again. |
#8
|
|||
|
|||
crabgrass in St. Augustine
Thanks for the product tip Roy, maybe Image will do the job.
http://www.pestproducts.com/herbicides/image.htm#Summer Just remember Image takes a LONG time to work. You won't notice any difference for 1-2 weeks, and it might take 3-4 weeks before it kills the crabgrass. Be patient when using it. Thanks again. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Time to set out St. Augustine sod? | Texas | |||
when to sod st augustine | Texas | |||
Time to set out St. Augustine sod? | Texas | |||
west houston st. augustine fertilizer schedule | Gardening | |||
St. augustine grass question | Gardening |