Section 2 Table of Contents

Table 2.2-9. Herbicide effectiveness on perennial broadleaf weeds.

Weed control rating:
10 = 95-100%
9 = 85-95%
8 = 75-85%
7 = 65-75%
6 = 55-65%
N = Less than 55% or no control

CT = Canada thistle
D = Dandelion
DBs = Dewberry species
Ds = Dock species
HB = Hedge bindweed
HD = Hemp dogbane
HN = Horsenettle
JA = Jerusalem artichoke
MiW = Milkweed
MW = Mugwort
PI = Poison Ivy
PW = Pokeweed

Table 2.2-9. Herbicide effectiveness on perennial broadleaf weeds.
Herbicide CT D DBs Ds HB HD HN JA MiW MW PI PW
Soil-applied
Atrazine1 7 7 N 7 6 N N 6 N N 6 6
  Mixture
Atrazine + Princep 7+ 7 7 7+ 7 N 7 6 N N 7 7
Postemergence
2,4-D 7+ 8 6 7+ 8 7 6 7 6 6 7 7
Accent 6 N 8 N 7 6 6 6 6 N ? 7
Atrazine1 6 6 6 7 7+ 6 6 N N N 6 6
Beacon 7 6 N ? 7 6 7 8 7 6 ? 7
Callisto 8 7+ ? ? ? ? 7+ ? ? ? ? 7+
Clarity/Banvel 8 7+ 6 8 8+ 7 7 8 6 7+ 7+ 6
Glyphosate2,3 8+ 7 8 8 7+ 8 7 8 8 7 8 9
Laddok 8 7 N 7+ 7+ 6 7 6+ N N 7 6
Marksman 8+ 8 6 8 8+ 7 8 8 6 7+ 7+ 7
Starane 9 7 N 8+ N N 6 9 N 8 7 ?
Stinger 9 7 N 8+ N N 6 9 N 8 7 ?
  Mixtures
Accent + Clarity/Celebrity 8 8 8 7 8 7 7+ 8 7 7+ 7 7
Beacon + Clarity or 2,4-D/Northstar 8+ 8 6 7 8 7 8 8 7 7+ ? 7
Celebrity Plus 8 8 8 7 8 7 7+ 8 7 7+ 7 7
Curtail 9 8 6 8+ 8 7 6 9 6 8 7 7
Distinct 8+ 8+ 6 8 8+ 7 7 8 7 7+ 7+ 7
Exceed + Clarity or 2,4-D 8+ 8 6 7 8 7 7+ 8 7 7+ ? 7
Yukon 8+ 8 6 7 8 7 7+ 7 8 7+ ? 8
  • Ratings based on 1.6-2 lb/A rate.
  • For use on Roundup Ready corn varieties only.
  • Glyphosate-containing products include Roundup, Touchdown, Glyphomax, and many others; see Table 2.2-1a.