Post-emergent herbicides are only marginally effective. Triclopyr + clopyralid or triclopyr alone are suggested.
Photographs courtesy of Judy Sedbrook.
Post-emergence herbicides are your best bet for killing foxtail weeds. Choose one that is safe for use in turf grass and that specifies its use against foxtail. Broad-spectrum herbicides can be more harmful than helpful and tend to kill species that you do not want to eradicate.
Post-emergence herbicides to slow broadleaf and grassy weeds in the fall, late winter, and late spring. Glyphosate can be used on dormant bermuda ONLY!
Pre-emergence herbicide applied in spring for control of annual grassy weeds.
Post-emergent weed killers are effective in getting established yard weeds under control. However, spraying when it's too hot is actually counterproductive. When the temperature is over 90 degrees Fahrenheit, it's… Read More
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What is Post-Emergent Selective Herbicide?
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What is Non-Selective Herbicide?
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Pre-emergence and ~nce damping off. Seedlings may be stunted and yellowed. Seedlings wilt and collapse. Stand is slow to fill in.
Conditions favoring disease
Attacks are most severe in warm weather on heavy, poorly drained soils or where seeding rates have been excessive.
And that's why some people prefer to use a ~nt herbicide on their crabgrass. ~nt herbicides can be applied practically any time during the growing season. And they work by disrupting cellular processes within the plant itself.
So many homeowners pump gallons of ~nt herbicides on their lawns that they deplete their soil of vital nutrients, as well as potentially poison the local water sources. Some commercial herbicides have been linked to non-Hodgkins lymphoma and reproductive woes.
~nt applications are also effective if made when plants are small, less than 4 inches in diameter. Labeled ~nt products include 2, 4-D and combinations, dicamba, glyphosate, triclopyr, and pendimethalin.
First it's important to understand the difference between a pre-emergent and a ~nt herbicide. Pre-emergent implies controlling the weed or weed seed before it "emerges" or germinates. It does not kill existing weeds.
Blend of nutrients and ~nt herbicide.
Promotes lush green grass.
Kills existing broadleaf weeds such as dandelions and clover.
Use a pre-emergent weed control to get rid of weeds before they've had time to germinate, or a ~nt if they're already actively growing. Be kind to the earth and use only the chemicals that target your particular problem, and read and follow product directions carefully.
See also: What is the meaning of Herbicide, Grass, Plant, Weed, Lawn?