I am aggravating to assure you from sandspurs! I apperceive … you don’t accept a botheration with sandspurs now; you accept a botheration with them afterwards in the summer. But in adjustment to finer ascendancy the sandspur, you charge to accept its biology.
1. Sandspur is an anniversary weed.
That agency that it germinates, grows to ability and produces seeds in one growing season. The ancestor bulb will die abrogation abaft seeds that will lie abeyant until the aing growing season. Anniversary weeds like that can be controlled with pre-emergent herbicides, which are activated afore a bulb germinates.
2. It’s a monocot, like backyard grass.
Being a monocot, sandspur is difficult to ascendancy selectively in the backyard already the bulb has germinated. There are a few post-emergent herbicides that will ascendancy sandspur but they can be big-ticket and, if not activated carefully in accordance with the characterization directions, they can accident turf.
3. Timing is crucial.
Sandspur germinates in the spring, so applying a pre-emergent herbicide according to characterization admonition in aboriginal bounce should decidedly abate the cardinal of sandspur plants that you will accept to accord with in the summer/fall. Edger seeds about germinate back the clay temperature alcove 52 degrees. This usually occurs by March 15 in the Central Florida area.
4. Keep at it for complete control.
To ensure complete ascendancy of beginning sandspurs in heavily infested areas, accomplish applications of the pre-emergent herbicide every six weeks through August. In areas with a ablaze bane of grass burrs, two applications that are six weeks afar afterwards the antecedent appliance should ascendancy berry germination. As always, the pre-emergent appliance needs to be watered in thoroughly. Not applying abundant baptize afterwards appliance of a pre-emergent herbicide is one of the capital affidavit for abortion to finer access ascendancy of anniversary blooming weeds such as sandspurs.
5. Sandspur’s not picky, aloof prickly.
Sandspur can be begin in home lawns, sports fields, and parks and forth roadsides. It is abnormally acclimatized to dry, albino soils but can be begin growing in added types of soils as well. The botheration with this edger is the sharp, annoying burrs that are allotment of the inflorescence. These burrs can be aching and are difficult to aish from accouterment material.
6. Sandspur doesn’t like nice lawns.
Sandspurs are about not a botheration in well-maintained turfgrass areas. With able fertilization, mowing and irrigation, you can aftermath a accommodation that is close abundant to anticipate sandspurs from acceptable a problem.
7. Avoid”weed and feed” products.
Proper time for edger ascendancy generally does not accompany with the best adorable time and ante for fertilizing. If acclimated for followup fertilizations, there is crisis of herbicide overdose. The University of Florida does not acclaim applications of “weed and feed” fertilizers. Again, the optimal time to administer pre-emergent herbicides isn’t necessarily the best time to administer fertilizers in Florida.
8. Apprehend herbicide labels.
Pre-emergent herbicides are accessible both as diminutive and aqueous applications. Pre-emergent herbicides labeled for sandspur ascendancy accommodate pendimethalin, benefin/oryzalin and oryzalin. These are awash beneath a cardinal of cast names. Be abiding to apprehend the characterization to acquisition the alive additive and appliance directions.
As sandspur matures, it becomes added difficult to access able control. Mixing some imazaquin works adequately able-bodied as a post-emergent herbicide to enhance the ascendancy of acreage sandspur that manages to germinate. Consistently chase the characterization admonition of the product(s) that you apply. They accept been activated for best effectiveness.
9. You can complete smart.
The accurate name for sandspur is Cenchrus echinatus L. It is a grass in the Gramineae (Poaceae) ancestors and is additionally accepted as brier grass or sandbur.
Joe Sewards is burghal agronomics abettor and adept agriculturalist coordinator for the University of Florida/Institute of Food and Agricultural Sciences Extension in Volusia County. Reach him at [email protected] or 386-822-5778.
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