Herbicide label
Wildcard Herbicide Label
Wildcard (EPA 5905-506) is a Group 4 mcpa herbicide labeled for 7 crops. The label lists 25 controlled weeds, plus partial-control, suppression, and partner-control categories.
Wildcard label facts
- Product Wildcard
- EPA Reg. No. 5905-506
- Registrant Helena Agri-Enterprises, LLC, d/b/a Helena Chemical Comp
- Active ingredient mcpa
- MOA group 4
Crops on the Wildcard label
Wildcard is labeled for these 7 crops and uses, per the EPA label.
Weeds on the Wildcard label
The Wildcard label names 43 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 control25- arrowhead
- beggartick
- burdock
- cocklebur, common
- croton
- galinsoga
- goatsbeard
- jimsonweed
- lambsquarters
- marshelder
- dragonhead mint
- mustard
- pennycress, field
- pepperweed, field
- puncturevine
- ragweed, giant
- radish, wild
- ammannia, purple
- shepherd's-purse
- sicklepod
- sneezeweed, bitter
- stinkweed
- water plantain
- witchweed
- rocket, yellow
Partial control
partial18- burcucumber
- buttercup
- catsear
- chervil
- hoary cress
- dandelion
- hempnettle
- honeysuckle
- miner's lettuce
- stinging nettle
- pigweed
- plantain
- purslane
- sowthistle
- sunflower
- thistle, canada
- vetch
- whitetop
Wildcard 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.
Wildcard FAQ
What weeds does Wildcard control?
The Wildcard label names 43 weeds, including arrowhead, beggartick, burdock, common cocklebur, croton, and galinsoga. Control varies by crop, rate, and timing.
What crops is Wildcard labeled for?
Wildcard is labeled for 7 crops and uses, including wheat, barley, flax, durum wheat, and oats.
What is the active ingredient in Wildcard? Is it a generic?
Wildcard's active ingredient is mcpa (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 2026-09-17.