Herbicide label
OPTI-DGA Herbicide Label
OPTI-DGA (EPA 5905-597) is a Group 4 dicamba herbicide labeled for 18 crops. The label lists 180 controlled weeds, plus partial-control, suppression, and partner-control categories.
OPTI-DGA label facts
- Product OPTI-DGA
- EPA Reg. No. 5905-597
- Registrant Helena Agri-Enterprises, LLC, d/b/a Helena Chemical Comp
- Active ingredient dicamba
- MOA group 4
Crops on the OPTI-DGA label
OPTI-DGA is labeled for these 18 crops and uses, per the EPA label.
Weeds on the OPTI-DGA label
The OPTI-DGA label names 185 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 control180- alfalfa
- bedstraw, smooth
- bindweed, hedge
- blueweed, texas
- burdock
- bursage, woolly-leaf
- buttercup, tall
- campion, bladder
- carrot, wild
- chickweed, field
- chickweed, mouseear
- chicory
- clover, hop
- clover, white
- dandelion
- dock, broadleaf
- dock, curly
- dogbane, hemp
- dogfennel
- eveningprimrose, common
- fern, bracken
- garlic, wild
- carolina geranium
- goldenrod
- goldenrod, missouri
- goldenweed, common
- hawkweed
- henbane, black
- horsenettle
- ironweed
- jerusalem artichoke
- knapweed, black
- knapweed, diffuse
- knapweed, russian
- knapweed, spotted
- lespedeza, sericea
- mallow, dwarf
- milkweed, common
- milkweed, honeyvine
- milkweed, western whorled
- nightshade, silverleaf
- onion, wild
- plantain, bracted
- plantain, broadleaf
- plantain, narrow-leaved
- pokeweed, common
- ragweed, western
- ragwort, tansy
- redvine
- smartweed, swamp
- snakeweed, broom
- sorrel, red
- sowthistle, perennial
- spurge, leafy
- starthistle, yellow
- sweetclover
- teasel
- thistle, bull
- thistle, canada
- thistle, milk
- thistle, musk
- thistle, plumeless
- thistle, scotch
- toadflax, dalmatian
- tropical soda apple
- trumpetcreeper
- vetch
- waterhemlock, spotted
- waterprimrose, creeping
- wormwood, louisiana
- yankeeweed
- yarrow, common
- alkanet
- amaranth, palmer
- amaranth, powell
- amaranth, spiny
- aster, slender
- bedstraw, catchweed
- beggarweed, florida
- broomweed, common
- buckwheat, tartary
- buckwheat, wild
- burclover, california
- burcucumber
- buttercup, corn
- buttercup, creeping
- buttercup, roughseed
- buttercup, western field
- carpetweed
- catchfly, nightflowering
- chamomile, corn
- chervil, bur
- chickweed, common
- clover species
- cockle, corn
- cockle, cow
- cockle, white
- cocklebur, common
- copperleaf, hophornbeam
- cornflower
- croton, tropic
- croton, woolly
- daisy, english
- dragonhead, american
- eveningprimrose, cutleaf
- falseflax, smallseed
- fleabane, annual
- flixweed
- fumitory
- goosefoot, nettleleaf
- hempnettle
- henbit
- jacobs-ladder
- jimsonweed
- knawel
- kochia
- knotweed, prostrate
- ladysthumb
- lambsquarters, common
- miner's lettuce
- prickly lettuce
- mallow, common
- mallow, venice
- horseweed
- mayweed
- morningglory, ivyleaf
- morningglory, tall
- mustard, black
- mustard, blue
- mustard, tansy
- mustard, treacle
- mustard, tumble
- mustard, wild
- nightshade, black
- nightshade, cutleaf
- pennycress, field
- pepperweed, virginia
- pigweed, prostrate
- pigweed, redroot
- pigweed, rough
- pigweed, smooth
- pigweed, tumble
- pineapple-weed
- poorjoe
- poppy, red-horned
- purslane, common
- pusley, florida
- radish, wild
- ragweed, common
- ragweed, giant
- rocket, lance-leaf
- rocket, london
- rocket, yellow
- rubberweed, bitter
- salsify
- senna, coffee
- sesbania, hemp
- shepherd's-purse
- sicklepod
- sida, prickly
- smartweed, green
- smartweed, pennsylvania
- sneezeweed, bitter
- sowthistle, annual
- sowthistle, spiny
- needles, spanish
- spikeweed, common
- spurge, prostrate
- spurry, corn
- starbur, bristly
- starwort, little
- sumpweed, rough
- sunflower, annual
- sunflower
- thistle, russian
- velvetleaf
- waterprimrose, winged
- wormwood
- bindweed, field
- gromwell
Suppression
suppression5- brambles
- brome, downy
- brome, ripgut
- rattail fescue
- windgrass, common
OPTI-DGA 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.
OPTI-DGA FAQ
What weeds does OPTI-DGA control?
The OPTI-DGA label names 185 weeds, including alfalfa, smooth bedstraw, hedge bindweed, texas blueweed, burdock, and woolly-leaf bursage. Control varies by crop, rate, and timing.
What crops is OPTI-DGA labeled for?
OPTI-DGA is labeled for 18 crops and uses, including field corn, soybeans, wheat, cotton, and barley.
What is the active ingredient in OPTI-DGA? Is it a generic?
OPTI-DGA's active ingredient is dicamba (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.