Herbicides
273
• 
Safety - page 25 • First aid - page 33 • Resistance management - page 41
Storage
Store at temperatures above 5°C. Keep unused water soluble bags in resealed, original container. Keep packages dry
at all times.
Spectrum
Group 2, 4
Formulation
Each case of Spectrum contains two components: Spectrum A and Spectrum B
Product
Company
Active ingredient
Formulation
Container size
Spectrum A (PCP# 27031)
Dow
AgroSciences
Florasulam: 50 g/L
Suspension
0.8
L
Spectrum B (PCP# 27032)
Clopyralid: 50 g/L + MCPA ester:
E.C
12
L
Crop and Staging
Crop
Staging
Barley
2 - 6
leaf.
Spring wheat (including durum)
Forage grasses (seedling and established for seed production): fescue
(
chewing, creeping red, hard), wheat grass (crested and intermediate,
tall), bromegrass (smooth, meadow and hybrid), perennial rye grass,
timothy
No stage specified on the label.
Weeds and Staging
Annual broadleaf weeds
:
Apply at 1 - 4 leaf stage, unless otherwise stated.
Canada thistle and perennial sow thistle
:
Apply after all thistles have emerged and when the majority are in the
rosette to pre-bud stage.
annual sow thistle
Canada thistle
chickweed
cleavers
dandelions (spring seedlings
and over-wintered 15 cm)*
flixweed (spring seedlings only)
hemp-nettle
lamb’s-quarters
perennial sow thistle (top growth control)
redroot pigweed
shepherd’s purse
smartweed
stinkweed
stork’s-bill
volunteer canola (all varieties)
wild mustard
wild buckwheat
*
Suppresses dandelions greater than 15 cm across and mature plants
Rate
Spectrum A: 40 mL/acre; Spectrum B: 600 mL/acre.
Registered Tank Mixes
Tank mix partner
Tank mixture rate
Adjuvant
Additional weeds controlled
Barley, spring wheat (including durum)
Assert 300 SC
647
mL/acre
Aciclulate: 2.5 kg/10.8
L of Assert
Wild oat.
Barley and spring wheat (excluding durum)
Axial 100 EC + Adigor
243
mL/acre
Adigor: 283 mL/acre
Wild oats and green foxtail.
Solo (cont’d)