Herbicide label
Formula 40 Herbicide Label
Formula 40 (EPA 228-357) is a Group 4 2,4-d herbicide labeled for 13 crops. The label lists 46 controlled weeds, plus partial-control, suppression, and partner-control categories.
Formula 40 label facts
- Product Formula 40
- EPA Reg. No. 228-357
- Registrant Nufarm Americas, Inc.
- Active ingredient 2,4-d
- MOA group 4
Crops on the Formula 40 label
Formula 40 is labeled for these 13 crops and uses, per the EPA label.
Weeds on the Formula 40 label
The Formula 40 label names 51 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 control46- sneezeweed, bitter
- broomweed, annual
- burdock
- carpetweed
- chicory
- cocklebur, common
- coffeeweed
- croton
- dandelion
- dock
- galinsoga
- jewelweed
- jimsonweed
- lambsquarters
- loco, bigbend
- lupine
- mallow, venice
- marshelder
- morning glory, annual
- morningglory, wild
- mustard, wild
- pennycress, field
- pennywort
- pepperweed, field
- pigweed
- plantain
- poorjoe
- pusley, florida
- ragweed, common
- rape, wild
- rocket, yellow
- shepherd's-purse
- sicklepod
- smartweed, annual
- sowthistle, annual
- spanishneedle
- sunflower
- sweetclover
- thistle, bull
- thistle, musk
- thistle, russian
- velvetleaf
- vetch
- water plantain
- witchweed
- wormwood
Partial control
partial5- bindweed, hedge
- dogbane
- ragweed, giant
- thistle, canada
- vines
Formula 40 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.
Formula 40 FAQ
What weeds does Formula 40 control?
The Formula 40 label names 51 weeds, including bitter sneezeweed, annual broomweed, burdock, carpetweed, chicory, and common cocklebur. Control varies by crop, rate, and timing.
What crops is Formula 40 labeled for?
Formula 40 is labeled for 13 crops and uses, including field corn, wheat, barley, sorghum, and rice.
What is the active ingredient in Formula 40? Is it a generic?
Formula 40's active ingredient is 2,4-d (MOA Group 4). 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.