Weed Control Table

Table 1. Relative effectiveness of herbicides on weed species.

Herbicides Labeled for Use in Pumpkins and Winter Squash
Weed Species Command (clomazone) Curbit (ethalfluralin) Dacthal (DCPA) Gramoxone (paraquat) Scythe (pelargonic acid) Poast (sethoxydim) Prefar (bensulide) Roundup (glyphosate)

Barnyardgrass		 E F E E E E E G
Crabgrass G E E E E E E E
Chickweed   C G G G N P E
Carpetweed N E G E E N P E
Fall panicum G E F E E E E E
F. Bindweed N N N N N N N G
  G E E E E E E E
Galinsoga F P P G G N P E
Johnsongrass (Rhizome) N P P P P E P E
Johnsongrass (Rhizome) F E G F F E P E
Jimsonweed F P P G E N P E
Lambsquarter
 		 G F E E E N P E
Morning Glory P P P G G N P E
Mustards N   N G G N N E
Nightshade   G P P p N P G
Purslane G E G G G N P E
Pigweed P E E E E N P E
Quackgrass N   P F F G N G
Ragweed F F P E E N P E
Smartweed E F P G G N P E
Velvetweed E F P G G N P E
At recommended rates for your soil type or weed species: E = 90% control or better G = 70-90% control F = 50-70% control P = 5-50% control N = less than 5% control

 

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