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Started By
Message
My pre-emergent doesn't work
Posted on 6/29/26 at 3:02 pm
Posted on 6/29/26 at 3:02 pm
Scott's WeedX or whatever they call it, they change the name pretty often.
What is this weed? I want to prevent this from germinating.
Also Violet and Woodsorrel. Both are listed on the bag, but the product does jack shite to prevent them from germinating.
Also, weed ID #2, the product doesn't seem to phase this one either-
Summary- two mystery weeds + violet and woodsorrel. That's what I need to prevent next season. The Scott's seems to do a decent job on all the other weeds.
What is this weed? I want to prevent this from germinating.
Also Violet and Woodsorrel. Both are listed on the bag, but the product does jack shite to prevent them from germinating.
Also, weed ID #2, the product doesn't seem to phase this one either-
Summary- two mystery weeds + violet and woodsorrel. That's what I need to prevent next season. The Scott's seems to do a decent job on all the other weeds.
4
Posted on 6/29/26 at 3:21 pm to deeprig9
Chamber bitter, or "Gripeweed." Good luck.
Posted on 6/29/26 at 3:52 pm to poppa1254
Seems I might want to keep the Chamber Bitter around on account of its medicinal properties for the kidneys and liver.
Posted on 6/29/26 at 5:34 pm to deeprig9
In the second photo, is that small purple-pinkish flowers associated with that weed? Does that area of the lawn have a tendency to remain wet at times? If so, could be Doveweed. As mentioned, 3rd photo chamberbitter.
Pre-emergents prevent most, but not all weed seeds from germinating.
Doveweed is best controlled with Specticle (indaziflam) pre-emergent herbicide. The upfront cost is high at $300 for a 18 oz bottle (Specticle Flo), but one can get 12 applications (4 years on 3 applications per year) on 10,000 sq ft of lawn. Equates to about $2.75 per 1000 sq ft per application. Indaziflam is a great overall pre-emergent herbicide, but it is pricey compared to the others.
Doveweed germinates at a soil temp of 70 F, so normally an application of pre-emergent is required in late April-early May (in south LA), b/c the late winter application (mid Feb) for crabgrass, etc will have lost its efficacy. You can adjust dates for your area of GA based on soil temperatures.
Woodsorrel (oxalis) is a perennial weed in the South, so pre-emergent will have limited affect on it as it also spreads by rhizomes in addition to seeds. Specticle should control violets.
There is a granular Bayer pre-emergent herbicide containing indaziflam for about $23 to 29 per bag that treats 4000 sq ft or $5.75 -7.25 per 1000 sq ft if you’d like try that as a cheaper upfront option for an application or 2 for a year to see how it works for you before committing to a $300 bottle.
Pre-emergents prevent most, but not all weed seeds from germinating.
Doveweed is best controlled with Specticle (indaziflam) pre-emergent herbicide. The upfront cost is high at $300 for a 18 oz bottle (Specticle Flo), but one can get 12 applications (4 years on 3 applications per year) on 10,000 sq ft of lawn. Equates to about $2.75 per 1000 sq ft per application. Indaziflam is a great overall pre-emergent herbicide, but it is pricey compared to the others.
Doveweed germinates at a soil temp of 70 F, so normally an application of pre-emergent is required in late April-early May (in south LA), b/c the late winter application (mid Feb) for crabgrass, etc will have lost its efficacy. You can adjust dates for your area of GA based on soil temperatures.
Woodsorrel (oxalis) is a perennial weed in the South, so pre-emergent will have limited affect on it as it also spreads by rhizomes in addition to seeds. Specticle should control violets.
There is a granular Bayer pre-emergent herbicide containing indaziflam for about $23 to 29 per bag that treats 4000 sq ft or $5.75 -7.25 per 1000 sq ft if you’d like try that as a cheaper upfront option for an application or 2 for a year to see how it works for you before committing to a $300 bottle.
This post was edited on 6/29/26 at 5:38 pm
Posted on 6/29/26 at 5:58 pm to CrawDude
The flowers are from a nearby Crape Myrtle, not associated with the weed.
Posted on 6/29/26 at 6:30 pm to deeprig9
quote:
The flowers are from a nearby Crape Myrtle, not associated with the weed.
AOK - not Doveweed. Hard to ID without seedhead.
Posted on 6/29/26 at 6:36 pm to deeprig9
wood sorrel is a beneficial perennial that provides multiple benefits to your lawn health as well as pretty flowers. Also you can eat it if you lose your job or something
Chamberbitter needs a specific pre emergent I don’t remember what it is but honestly you’re not getting rid of it. Spray the plants you see with 30% vinegar before they go to seed…but again, they make so much seed and the seed stays viable so long you may as well learn to live with it
Chamberbitter needs a specific pre emergent I don’t remember what it is but honestly you’re not getting rid of it. Spray the plants you see with 30% vinegar before they go to seed…but again, they make so much seed and the seed stays viable so long you may as well learn to live with it
Posted on 6/29/26 at 6:45 pm to cgrand
quote:
wood sorrel is a beneficial perennial that provides multiple benefits to your lawn health as well as pretty flowers. Also you can eat it if you lose your job or something
I've made tea from it. It's actually really good. Similar to the flavor and aroma of hibiscus tea.
Posted on 6/29/26 at 9:25 pm to deeprig9
Looks like spurge. MSM Turf works well on that.
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