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Safety - page 25 • First aid - page 33 • Resistance management - page 41
Herbicides
Tank mix partner
Tank mixture rate
Adjuvant
Additional weeds controlled
Spring wheat (including durum)
Everest
17.4
g/acre
Ag-Surf or Agral 90:
0.25 %
v/v
Barnyard grass, green foxtail, yellow foxtail,
proso millet, volunteer canary seed, wild oats.
Simplicity
200
mL/acre
None required
Grass and broadleaf weeds consult label.
Application Information
How to Apply
:
Apply with ground equipment only. Do not apply by air.
Water volume
: 40
L/acre.
Mixing Instructions
Use mixing instructions “b” on page 13. Add A first, then B.
Application Tips
Do not apply to crops underseeded to legumes. Weeds hardened off by cold weather or drought stress may not be
adequately controlled or suppressed and regrowth may occur. For best results, ensure adequate spray coverage of the
target weeds.
How it Works
Spectrum tank mix is a combination of Group 2 and Group 4 herbicides. Group 2 herbicides inhibit the production
of the ALS enzyme in plants. This enzyme is essential for the production of certain amino acids that are essential
for plant growth. Group 4 herbicides are synthetic auxins, which act at multiple sites in the plant to disrupt hormone
balance and protein synthesis and thereby cause a variety of plant growth abnormalities.
Expected Results
The weeds susceptible to florasulam will stop growing almost immediately. The weeds turn yellow or reddish.
Symptoms such as yellowing and red coloration may not be noticeable for 1 - 2 weeks. Twisting of stems may also
be observed on weeds sensitive to Curtail M. Warm, moist conditions, small weed size and a competitive crop will
optimize weed control provided by Spectrum.
Restrictions:
Rainfall
:
Do not apply if rainfall is expected within 6 hours.
Grazing
:
Do not permit any grazing within 7 days after application. Do not harvest forage or cut hay within 7 days
after application. Withdraw meat animals from treated fields at least 3 days before slaughter.
Pre-harvest Intervals
:
Do not harvest the treated crop within 60 days after application.
Re-cropping
:
Fields previously treated with Spectrum herbicide can be seeded the following year to barley, canola,
field peas, oats, or wheat or fields can be summerfallowed. Seed only those crops listed above in the year following
treatment. Very dry soil conditions following application can result in a risk of injury to field peas grown in rotation.
If severe drought conditions are experienced during the months of June to August inclusive in the year of application,
delay seeding field peas an additional 12 months (total 22 months following application).
Environmental Precautions
Spectrum A is highly toxic to aquatic organisms on an acute basis. It is slightly toxic to birds. A buffer zone of 30
metres is required between the application area and sensitive aquatic and terrestrial habitats. Do not contaminate
these habitats when cleaning and rinsing spray equipment or containers.
Toxicity
Spectrum A has extremely low acute toxicity. Acute LD
50
= >5,000 mg/kg. Spectrum B (Clopyralid and MCPA) has
low acute toxicity. Acute LD
50
rats = >2,000 mg/kg. MCPA has moderate acute toxicity. Acute LD
50
of
technical = (700 - 800 mg/kg).
Storage
Store in a dry, heated storage. If products are frozen, bring to room temperature and agitate before use.
Spectrum (cont’d)