Trade name(s) Prism, Select, Envoy, Volunteer, Arrow, Section, Trigger, SelectMax, Shadow, Intensity
Manufacturer(s) Valent, Tenkoz, Albaugh, Arysta, Winfield, Loveland
Formulation(s) 0.94, 0.97 and 2 lb/gal emulsifiable concentrate
Remarks A selective postemergence grass-control herbicide. Controls most annual and perennial grasses except fine fescues. Using a crop oil concentrate enhances activity.
Storage conditions Stable
Acute toxicity LD50 - 2,920 mg/kg
Action in plant Inhibits growing points in grasses.
Site of action Group 1: acetyl CoA carboxylase (ACCase) inhibitor
Chemical family Cyclohexanedione
Joe DeFrancesco
Revised March 2013
Weed control practices in strawberries must be timed to coincide with the crop’s non-reproductive phases, or when minimal herbicide uptake can be expected. Strawberries can be induced into a non-reproductive “summer dormancy” by withholding water and fertilizer after harvest. Beds can be renovated by mowing old leaves, cultivating row middles, and sometimes by applying a herbicide. In mid-August, plants are fertilized and watered to enhance flower bud development. Soil-applied herbicides can be applied at full rates in the fall.
Kim Patten
Revised March 2013
Preplant weed control All major weed problems can be prevented by starting with a clean field and avoiding re-infestation.
Ed Peachey
Revised March 2013
BLUEBERRIES, GOOSEBERRIES, CURRANTS, AND ELDERBERRIES—Weed and Vegetation Management
Joe DeFrancesco
Revised March 2013
Boysenberry; Loganberry; blackberries (Marion, Evergreen and other cultivars); and red and black raspberries
BLACKBERRIES AND RASPBERRIES—Site Preparation
glyphosate (numerous product names)
Rate Consult labels
Ed Peachey
Revised March 2013
(Note: Some clones may be sensitive to certain herbicides)
GRAPES—Weed and Vegetation Management
General strategy Vegetation management in vineyards is determined by site-specific environmental factors. Weed competition and interference must be minimized within the row while trafficability and soil conservation are required between rows (see Section L.Vegetation Management in Orchards, Vineyards, and Berries in this handbook).
Ed Peachey
Revised March 2013
Pome fruits: apples and pears
Stone fruits: apricots, peaches, nectarines, cherries, prunes, plums
Nuts: hazelnuts, walnuts, and chestnuts
Quick Reference Guide to Herbicides Labeled for Use in Fruit and Nut Crops
Don Morishita
Revised March 2013
Note All rates listed are stated as broadcast equivalent (i.e., the amount that would be required for weed control if broadcast sprayed between rows as well as in the row). If sugar beet herbicides are applied in a band, the amount required for 1 acre of beets can be calculated as: broadcast equivalent x (band width ÷ distance between rows).
SUGAR BEETS—Annual Grass and Broadleaf Weeds
cycloate (Ro-Neet SB)
Pamela J.S. Hutchinson
Revised March 2013
POTATOES—Volunteer Grain, Weed, or Grass Cover Crop Control before Planting Potatoes
carfentrazone (Aim EC)
Rate Up to 0.031 lb ai/A (2 fl oz Aim EC)
Time Apply before potatoes have been planted.
Rick Boydston
Revised March 2013
MINT—Annual Grass and Broadleaf Weeds in New Plantings and Established Crop
sulfentrazone (Spartan 4F)
Rate 0.14 to 0.375 lb ai/A (4.5 to 12 fl oz/A product)
Rick Boydston
Revised March 2013
HOPS—Annual Grass and Broadleaf Weeds
flumioxazin (Chateau WDG)
Rate 0.19 lb ai/A (6 oz product).
Time Apply to dormant hops January thru March in a 1- to 1.5-foot band to each side of the hop row. Rain following application will improve preemergence weed control.
