Herbicides
269
• 
Safety - page 25 • First aid - page 33 • Resistance management - page 41
Environmental Precautions
Toxic to small mammals, birds, aquatic organisms and non-target terrestrial plants.
Runoff
:
Avoid contamination of sensitive aquatic and terrestrial areas as a result of runoff by using the recommended
buffer zones between the treated area and sensitive sites. Do not irrigate within 24 hours after application
Leaching
:
The use of this chemical may result in contamination of groundwater particularly in areas where soils are
permeable (e.g. sandy soil) and/or the depth to the water table is shallow.
Toxicity
Approve: Moderate acute mammalian toxicity. Acute oral LD
50
(
rats) = 606 mg/kg. Can be absorbed through the
skin. Very toxic to fish. Signal herbicide: Acute oral LD
50
(
rats) = 2,276 mg/kg.
Storage
Store the product in closed, original container in a well ventilated room.
Simplicity
Group 2
Formulation
Product
Company
Active ingredient
Formulation
Container size
Simplicity (PCP# 28887)
Dow AgroSciences
Pyroxsulam: 30 g/L
Oil dispersion
2
x 8 L
One case treats 80 acres
Crop and Staging
Crop
Staging
Spring, winter and durum wheat
Apply to actively growing wheat from the 3-leaf stage to the first node stage.
Note: Occasionally slight yellowing or height reduction may be observed in the treated crop. These transient symptoms disappear within 14 days with no
reduction to yield. Do not apply to crops suffering from drought, nutrient deficiency or exposed to frost or other agronomic factors affecting plant growth
Weeds and Staging: At the 200 mL/acre Rate
barnyard grass (1 - 5 leaf stage)
common chickweed (up to 10 cm)
cleavers (up to 6 whorls)
downy brome**
1
(1 - 6
leaf )
flixweed (up to 10 cm)
green foxtail* (1 - 5 leaf)
hemp-nettle (1- 8 leaf)
lady’s-thumb (1 - 5 leaf)
Japanese brome (1 - 6 leaf)
red root pigweed (1-8 leaf)
wild buckwheat* (1 - 4 leaf)
wild oats (up to 4 leaf, 2 tillers)
volunteer canola (excluding CLEARFIELD)
yellow foxtail (1 - 5 leaf)
1
Simplicity can be used to control Japanese brome and downy brome in Crested and Intermediate wheatgrass.
*
Suppression
**
Fall application in winter wheat will give control; spring application will suppress downy brome.
Rate
Simplicity
: 200
mL per acre. 150 mL/acre on spring and durum wheat when mixed with Attain XC or Benchmark
under conditions of low wild oat populations.
Note
:
Use surfactant only when Simplicity is applied alone or when tank mix partner requires a surfactant. Add either
Agral 90, AgSurf, Surf 92 at 0.25v/v (0.25 L per 100 L of spray solution) or Assist oil concentrate at 0.8 L per 100 L
of spray solution.
Registered Tank Mixes
Do not add surfactant when tank mixing Simplicity with registered broad leaf herbicides, unless otherwise indicated.
Signal M (cont’d)