50
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Safety - page 25 • First aid - page 33 • Resistance management - page 41
Herbicides
Weeds and Staging
Grasses:
1 - 4
true leaf stage, up to tillering
Broadleaves:
cotyledons to 4 leaf stage
Grasses
barnyard grass
green foxtail
Persian darnel
volunteer barley
volunteer oats
volunteer wheat*
wild oats
Broadleaves
Canada thistle (rosette to
pre bud) (top growth control
6 - 8
weeks)
chickweed
cleavers (up to 4 whorls)
flixweed
hemp-nettle
kochia (suppression)
lamb’s-quarters (suppression)
redroot pigweed
Russian thistle
shepherd’s-purse
smartweed
stinkweed
stork’s-bill
volunteer canola (non
CLEARFIED varieties)
volunteer tame mustard*
wild buckwheat
wild mustard
*
Does not control volunteer CLEARFIELD wheat, CLEARFIELD XCEED
Registered Tank Mixes
None.
Application Information
How to Apply:
Ground applications only.
Do not apply by air.
Water Volume:
40
L per acre.
Application Tips
Water-soluble bags of Odyssey will dissolve better when kept intact; do not split bags. If agitation is stopped for
more than 5 minutes, re-suspend spray solution by full agitation prior to commencing spraying again. Do not spray
Absolute, if temperatures of +5ºC or lower are forecasted within 3 days of application. Temperatures near freezing
(
below 5ºC) will prevent optimum herbicide performance, as weeds are not actively growing. Treat CLEARFIELD
canola during warm weather when weeds are actively growing and soil moisture is adequate for rapid growth. Under
cool or dry conditions, control of Canada thistle may be severely reduced. Sow thistle plants emerging after spraying
will not be controlled. Use 50 mesh or coarser filter screens.
How it Works
Odyssey is absorbed by foliage and roots and disrupts plant metabolism, causing growth to stop. Lontrel is a systemic
hormone-type herbicide. It is absorbed by leaves and stem surfaces and is readily translocated. Maximum efficacy
results from foliar applications to young, actively growing plants.
Expected Results
Odyssey:
Susceptible weeds may stop growing within 24 - 48 hours. Yellowed growing points, yellow striping
and purplish or reddish discolouration of the leaves may occur. Leaves begin to die in 3 - 10 days, starting with
the youngest and moving to the older leaves. Death of the plant may occur in 1 - 3 weeks. Lontrel symptoms on
affected plants include swollen growing points and roots, cupping of leaves, twisted and distorted stem. Plants will
gradually stop growing and will change colour, first to dark green and then to yellow before turning brown as they
die. Maximum effectiveness results from foliar application to young, actively growing plants. Death of weeds may
not occur until 14 - 21 days after application. On Canada thistle, some re-growth may occur by the end of the season,
but this will not interfere with harvesting of the crop.
Restrictions
Effect of Rainfall:
Rainfall within 6 hrs of application may reduce activity.
Grazing:
Do not graze treated crops or cut for hay; there are insufficient data to support such use. Apply Absolute
only once per year.
Maximum Allowable Applications:
Apply Absolute only once per year.
Pre-harvest Interval:
60
days
Re-cropping Restrictions:
Barley, CLEARFIELD canola, XCEED canola, spring wheat (including durum), oats,
can be grown safely the year following an application. Flax, non-CLEARFIELD canola and sunflower can be grown
in the second year after an Absolute application (e.g. if Absolute was applied in 2008 then non-CLEARFIELD canola
can be planted in 2010). Research studies have shown that flax, non CLEARFIELD canola and non CLEARFIELD
sunflower may be safely planted two (2) years following ODYSSEYWDG Herbicide application in all regions of
Absolute (cont’d)