Herbicide label
Drexel AquaPen 3.8 Herbicide Label
Drexel AquaPen 3.8 (EPA 19713-698) is a Group 3 pendimethalin herbicide labeled for 25 crops. The label lists 59 controlled weeds, plus partial-control, suppression, and partner-control categories.
Drexel AquaPen 3.8 label facts
- Product Drexel AquaPen 3.8
- EPA Reg. No. 19713-698
- Registrant Drexel Chemical Company
- Active ingredient pendimethalin
- MOA group 3
Crops on the Drexel AquaPen 3.8 label
Drexel AquaPen 3.8 is labeled for these 25 crops and uses, per the EPA label.
Weeds on the Drexel AquaPen 3.8 label
The Drexel AquaPen 3.8 label names 67 weeds and rates each by how the product handles it: full control, partial control, suppression, or control with a tank-mix partner. A weed can fall at more than one level, because control varies by crop, rate, and timing.
Controls
full control59- amaranth, palmer
- barnyardgrass, common
- bluegrass, annual
- brome, downy
- brome, japanese
- bugloss, small
- canarygrass
- carpetweed
- cheat
- chess, hairy
- chickweed, common
- crabgrass
- crowfootgrass
- cupgrass, woolly
- dodder
- fescue, volunteer
- fiddleneck
- fingergrass, swollen
- foxtail, giant
- foxtail, green
- foxtail, yellow
- goatgrass, jointed
- goosegrass
- henbit
- johnsongrass, seedling
- junglerice
- knotweed, prostrate
- kochia
- lady's thumb
- lambsquarters, common
- lambsquarters, slimleaf
- lovegrass species
- millet, wild-proso
- mustard, black
- stinging nettle
- wild oats
- panicum, browntop
- panicum, fall
- panicum, texas
- pigweed
- puncturevine
- purslane
- pusley, florida
- red rice
- rocket, london
- ryegrass, annual
- ryegrass, italian
- ryegrass, volunteer
- sandbur, field
- shattercane
- shepherd's-purse
- signalgrass
- smartweed, pennsylvania
- sprangletop, mexican
- sprangletop, red
- spurge, annual
- velvetleaf
- waterhemp, common
- witchgrass
Suppression
suppression8- morningglory
- nightshade, black
- nightshade, hairy
- ammannia, purple
- sedge, smallflower umbrella
- thistle, russian
- watergrass, early
- watergrass, late
Drexel AquaPen 3.8 rates and plant-back
The label answers both with a table, not a single number. Here is what drives each answer.
Application rate
Your rate depends on your crop.
Get the rate for your field: build a program and FieldMarshal gives you the exact per-acre rate for your crop from the label line.
Plant-back and rotation
Your interval depends on your application rate and the rotational crop.
Get the interval for your rotation: build a program and FieldMarshal gives you the exact plant-back for your rotational crop from the label line.
Drexel AquaPen 3.8 FAQ
What weeds does Drexel AquaPen 3.8 control?
The Drexel AquaPen 3.8 label names 67 weeds, including palmer amaranth, common barnyardgrass, annual bluegrass, downy brome, japanese brome, and small bugloss. Control varies by crop, rate, and timing.
What crops is Drexel AquaPen 3.8 labeled for?
Drexel AquaPen 3.8 is labeled for 25 crops and uses, including field corn, soybeans, wheat, cotton, and sunflower.
What is the active ingredient in Drexel AquaPen 3.8? Is it a generic?
Drexel AquaPen 3.8's active ingredient is pendimethalin (MOA Group 3). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.
Sources
Last updated 2026-09-30.