How to Kill Sandbur
Commonly called sandbur, cenchrus incertus is a dense weed that grows in sandy, well-drained soils. The sandbur has sticky, sharp burrs that attach to almost anything. In this way, they can spread all over your yard before you even realize what's happening. In fact, you may not even notice the infestation until it is too late. Because sandbur is so easily transported, killing the weed can be difficult. But it can be done. Does this Spark an idea?
Instructions
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Sandbur grows best in sparse lawns and does not compete well with other weeds and grasses. So properly maintain your lawn. Mowing, fertilization and irrigation will produce a healthy, dense lawn that will choke out sandbur.
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Pre-treat your lawn with pre-emergent herbicide, such as Amaze, XL, Balan or Betasan, in the spring. Sandbur blooms in the summer, so herbicide applied to your lawn beforehand can prevent the weed from ever taking root.
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Apply spot herbicide to sandbur plants as you find them in your yard. Be careful of drifting spray and runoff because it can kill surrounding grass and weeds. Chemicals known to kill sandbur include dithiopyr, pendimethalin, benefin, trifluralin and oryzalin.
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Pull up sandbur weeds by hand as your find them in your yard. This method is time-consuming, but it will get rid of the problem without exposing your yard to chemicals.
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References
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