|
Midwest...
Pre-Planning
 Identify acres for crop
production
Evaluate weeds and
control
noxious problems
Evaluate residue cover,
mow or
bale, remove if excessive
Evaluate field conditions
and level
mounds if necessary (with light
disking or railroad rail)
Summer Burndown - 1997 Warm-
Season Grasses Herbicide Application
 Mow grasses in June
(April is
ideal, if permitted) or when warm
season grasses are active
Allow 8-12 inches of
regrowth
In early July, apply 64
oz/A
Roundup Ultra (caution: drought
stress reduces effectiveness of
application)
Fall Burndown - 1997 Cool-
Season Grasses Herbicide Application
 Mow grasses July to
August
Allow 8-12 inches
regrowth
September to late October
(before
killing frost), apply 48-64 oz/A
Roundup Ultra
Winter - 1997
 Allow decomposition of
above
ground residue and below ground
root mass
Spring Burndown - 1998
Cool-Season Grass Burndown
 Delay as long as possible
to see
what's there (late April)
Allow 8-12 inches
regrowth at
least until early May
Apply 64-96 oz/A Roundup
Ultra
Wait 7-14 days before
planting
(may limit to shorter season crop
like soybeans)
-OR-
Cool-Season Grass Aid-to-Tillage
 Delay as long as possible
Allow 8-12 inches of
regrowth
Apply 32-64 oz/A Roundup
Ultra
Wait 7-10 days before
tillage
| 
