Introduction

69
Special Weed Problems
This section identifies specific weeds and some herbicides recommended for control. Refer to the particular crop section or
the product label for information on specific products that may be used on the crops and for application instructions.
Absinthe
2,4-D LV Ester (500 g/L) - In grass pastures with no legumes, spray 1.82 L/acre in late June, prior to flowering. Re-treat
regrowth in late summer when plants have 6 to 10 inches (15 to 25 cm) of new growth. More than 1 season of treatment
may be required.
Dicamba - In grass pasture and rangeland only, apply 0.5 L/acre in 20 to 30 gallons (90 to 135 L) per acre for topgrowth
control when leaves are fully expanded.
Restore/Restore II - In grass pastures and rangeland, apply Restore A at 0.2 L and Restore B at 1 L per acre (one package treats
15 acres) or Restore II at 0.97 L/acre (one 10 L jug treats 10 acres) when actively growing.
Alders
2,4-D LV Ester (500 g/L) - In grass pastures and non-crop land, apply 1.78 L/acre to the foliage of actively growing brush.
Dicamba + 2,4-D amine or LV ester (500 g/L) - In grass pastures, rangeland and non-crop land, apply dicamba at
2.1 L per 1,000 L of water with 2,4-D LV ester or amine at 4.0 L per 1,000 L of water to the foliage of actively growing brush in
the spring or early summer and wet the foliage until the point of runoff.
Weed Control
Aspen Poplar (Trembling Aspen)
Dicamba + 2,4-D amine or LV ester (500 g/L) - In grass pastures, rangeland and non-crop land, apply dicamba at
1.32 L/ acre with 2,4-D LV ester or amine at 1.78 L/acre in 20 gallons/acre (90 L/acre) water to the foliage of actively growing
brush in spring or early summer.
Baby’s Breath (Perennial)
Dicamba - In grass pastures with no legumes, apply 3.72 L/acre in 10 to 20 gallons/acre (45 to 90 L/acre) water when
actively growing.
Biennial Wormwood
2,4-D LV ester - In grass pastures and non-crop land, apply 2,4-D LV ester (500 g/L) at 1.78 L/acre to the foliage of actively
growing plants.
Overdrive - In grass pastures and non-crop land, apply at 115 g per acre for control.
Restore II - In grass pastures, apply 0.97 L/acre (one 10 L jug treats 10 acres).
Black Medic
Dichlorprop/2,4-D; Mecoprop-p; dicamba/mecoprop/MCPA; 2,4-D amine or LV ester - Apply in registered crops at
registered rates to black medic in the 1 to 4 leaf stage for suppression only.
Chokecherry
2,4-D LV ester - In grass pastures and non-crop land, apply 2,4-D LV ester (500 g/L) at 1.78 L/acre to the foliage of actively
growing brush.
Common Tansy
Glyphosate - Apply at 1.9-2.8 L/acre in 10 gallons of water/acre (40 L/acre) to actively growing plants that are 8-10 inches
(20-25 cm) tall (summerfallow, stubble and noncropland).
Escort - In pastures, rangeland and rough turf, apply 8 g/acre in 10 to 20 gallons/acre (45 to 90 L/ acre) of water to actively
growing plants of less than 4 inches (10 cm) tall. Add non-ionic surfactant at 0.2 L per 100 L of spray solution.
Navius - In grass pastures and rangeland, apply Navius at 68 g/acre for control.