HarrowPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

Product Information
HARROW Herbicide is a water dispersible granule selective herbicide
for burndown and residual control of certain annual grass and broadleaf
weeds when applied preemergence and postemergence to field corn.
HARROW can be tank mixed with a variety of herbicides to improve
burndown and residual control.
HARROW is absorbed through the roots and leaf tissue of plants, rapidly
inhibiting the growth of susceptible weeds. Residual weed control is
dependent on rainfall or sprinkler irrigation for herbicide activation.
Susceptible weeds will generally not emerge from a preemergence
application. In some cases, susceptible weeds may germinate and
emerge a few days after application, but growth then ceases and leaves
become chlorotic three to five days after emergence. Death of leaf tissue
and growing point will follow in some species, while others will remain
green, stunted and noncompetitive.
The herbicidal action of HARROW may be less effective on weeds stressed
from adverse environmental conditions (such as extreme temperatures or
moisture), abnormal soil conditions or cultural practices. HARROW residual
is most effective in controlling weeds when adequate rainfall or irrigation
is received within 5-7 days after application. If cultivation is necessary
because of soil crusting, soil compaction or weed germination before
rain occurs, use shallow tillage such as rotary hoe to lightly incorporate
HARROW and make certain corn seeds are below the tilled area.

APPLICATION INFORMATION
Fallow
When tank mixing check the tank mix partner label for tolerances and instructions for use.
Rate: Apply HARROW at 0.33-1.0 ounce per acre.
Timing to Crops and Weeds: HARROW may be used as a fallow treatment, in the spring or fall when the majority of weeds have emerged and are actively growing.
Tank Mixtures: HARROW may be used as a fallow treatment and may be tank mixed with other herbicides that are registered for use in fallow. Read and follow all instructions on this label and the labels of any tank mix partner before using any other herbicide in mixtures with HARROW. For best control of emerged weeds, apply 0.5 ounce per acre HARROW for the following weeds less than 3” tall and prior to flowering:
Bittercress
Brome, downy
Bushy wallflower
Buttercup, smallflower
Butterweed
Catchweed bedstraw
Chickweed, common and mouseear
Dandelion, 6” diameter*
Deadnettle, purple
Hemlock, poison (up to 12” dia.)
Henbit
Marestail*
Parsnip, wild
Pennycress, field
Shepherdspurse
Speedwell, corn
Wheat, volunteer
Yellow rocket
*for best results add 1 pt. 2,4-D LVE (4 lbs formulation)

Field Corn – Preplant/Preemergence
Not all field corn varieties have been tested; nor does Cheminova have access to all seed company data. Consult your local Cheminova representative for additional information relative to potential corn hybrid sensitivity to HARROW herbicide.
Rate: Apply HARROW at 0.33 to 1.0 ounce per acre before corn emergence. Applications of HARROW at 0.5 to 0.6 ounce per acre fits
most preemergence/preplant applications.

Timing to Crop
HARROW may be applied preplant after fall harvest through early spring, up to planting, whenever the ground is not frozen, to control emerged weeds and to provide limited residual control of early emerging spring weeds. Control of emerged weeds will require the addition of spray adjuvants, and can be further enhanced with additional tank mix partners as noted in this label.

Sequential Application
HARROW may be used in a sequential herbicide program in corn. Apply HARROW for burndown and residual weed control. Make a sequential applications after the corn has reached the 2 collar stage but before the corn exceeds the maximum application height listed on the respective product label. Additional Control of Grasses and Broadleaf Weeds HARROW may be tank mixed with full or reduced rates of labeled preplant/ preemergence grass and broadleaf herbicides to provide added residual activity or burndown activity on emerged weeds. Consult tank mix partner labeling for rate and soil-type restrictions.

Field Corn – Postemergence Rate
Apply HARROW at 0.33 ounce per acre as a postemergence broadcast application.

Timing to Crop
HARROW may be applied to field corn in the spike through 4-leaf (2 collar) stage (approximately ½” to 6” tall). Do not apply to corn having 3 fully emerged collars or over 6” tall.