Herbicide label
Defy Amine 4 Herbicide Label
Defy Amine 4 (EPA 66222-221) is a Group 4 2,4-d herbicide labeled for 14 crops. The label lists 69 controlled weeds, plus partial-control, suppression, and partner-control categories.
Defy Amine 4 label facts
- Product Defy Amine 4
- EPA Reg. No. 66222-221
- Registrant Makhteshim Agan of North America, Inc. d/b/a ADAMA
- Active ingredient 2,4-d
- MOA group 4
Crops on the Defy Amine 4 label
Defy Amine 4 is labeled for these 14 crops and uses, per the EPA label.
Weeds on the Defy Amine 4 label
The Defy Amine 4 label names 101 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 control69- beggarticks
- bittercress, small-flowered
- sneezeweed, bitter
- burdock
- carpetweed
- cinquefoil, common
- cinquefoil
- cocklebur, common
- coffeeweed
- copperleaf, virginia
- croton, Texas
- croton, woolly
- flixweed
- galinsoga
- carolina geranium
- hemp, wild
- horseweed
- jewelweed
- jimsonweed
- kochia
- lambsquarters, common
- lettuce, wild
- lupines
- mallow, venice
- marshelder
- morning glory, annual
- morningglory, ivy
- morningglory, woolly
- mousetail
- mustards
- parsnip, wild
- pennycress, field
- poorjoe
- primrose, common
- purslane, common
- pusley, florida
- radish, wild
- ragweed, common
- ragweed, giant
- rape, wild
- rocket, yellow
- salsify, common
- shepherd's-purse
- sicklepod
- sowthistle, annual
- sowthistle, spiny
- needles, spanish
- sunflower
- sweetclover
- tansymustard
- thistle, bull
- velvetleaf
- vetches
- blue lettuce
- blueweed, texas
- broomweed, annual
- catnip
- chicory
- eveningprimrose, cutleaf
- goldenrod
- healal
- ironweed, western
- loco, bigbend
- onion, wild
- pennywort
- plantain
- sowthistle, perennial
- waterplantain
- wormwood
Partial control
partial32- afalfa
- jerusalem artichoke
- aster, many-flower
- Austrian fieldcress
- bindweed, hedge
- bindweed, field
- bindweed, European
- broomweed, common
- bullnettle
- buttercup, smallflowered
- carrot, wild
- clover, red
- hoary cress
- dandelion
- docks
- dogbanes
- garlic, wild
- hawkweed, orange
- ground ivy
- knotweed
- prickly lettuce
- mallow, little
- nettles
- pigweed
- pepperweed
- ragwort, tansy
- salsify, western
- smartweed
- thistle, canada
- thistle, musk
- thistle, russian
- vervains
Defy Amine 4 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.
Defy Amine 4 FAQ
What weeds does Defy Amine 4 control?
The Defy Amine 4 label names 101 weeds, including beggarticks, small-flowered bittercress, bitter sneezeweed, burdock, carpetweed, and common cinquefoil. Control varies by crop, rate, and timing.
What crops is Defy Amine 4 labeled for?
Defy Amine 4 is labeled for 14 crops and uses, including field corn, soybeans, wheat, barley, and sorghum.
What is the active ingredient in Defy Amine 4? Is it a generic?
Defy Amine 4'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.