Spectracide Weed quit for Lawns plus Crabgrass Killer is made and market by Spectrum Brands of Madison , Wi . The herbicide is registered with the EPA as the Chemsico lawn and weed slayer dressed ore . Spectracide Weed Stop is a systemic herbicide , meaning that it is transported through flora vascular arrangement . It is post - emergent , think of that it targets visible weeds ; it is hold when weed are out of the soil and growing .

Active Ingredients

The active constituent in Spectracide Weed Stop are 5.67 pct 2,4 - D , 1.34 percent MCPP , also called mecoprop and .63 percentage dicamba . All three chemical down plants by interrupt their growth hormones .

Effectiveness

The compounding of 2,4 - D , MCPP and dicamba in Spectracide will kill most weeds with broadleaves . Clemson University agronomist recommends it for southern lawns because it also control sulfentrazone , a plant growth inhibitor . This formulation pretend chop-chop to drink down Cyperus rotundus that are a exceptional problem with lawns in the south , but a repeat practical program is sometimes necessary .

Conditions for Application

Spectricide should not be practice lawns in the heat , which can damage the sward . It is best applied when the temperature is between 65 and 85 degrees F. Spectricide may damage the turf and fail to insure locoweed if the grass is stress by drouth . The land should be moist , not dry , but it is well to employ Spectracide if no rainwater is expect for one day . Do do not apply in the wind , which can blow the herbicide onto ornamental plants . Spectracide should be practice on newly sow lawn at half the charge per unit advocate on the label ; the pot should be at least 3 inches tall . A newly seed lawn should be mowed at least three time before Spectracide is apply at the full recommended pace . A lawn should not be over - seeded for three weeks after a lawn is treated .

Tips

Do not mow lawn before or after put on Spectracide ; mowing reduces the pasturage surface that can be meet by the herbicide . Spectracide works well on young weed . Repeat software 10 to 14 day asunder may be demand .

Warning

Spectricide spray will kill ornamental plants if their roots are under the lawn or the spraying drifts onto them . Spectricide is toxic if it is inhaled or ingested . Protective clothing should be endure during its preparation and coating . Do not breatahe it in or get in on your skin .

References

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