Herbicide label
OPTI-DGA
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.
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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.
- field corn
- soybean
- wheat
- cotton
- barley
- sorghum
- corn silage
- popcorn
- seed corn
- fallow
- grass seed
- proso millet
- oats
- triticale
- durum wheat
- sugarcane
- cereal rye
- sudangrass
Need the rate or timing for one of these? Filter every label by your crop, free.
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
- alkanet
- amaranth, palmer
- amaranth, powell
- amaranth, spiny
- aster, slender
- bedstraw, catchweed
- bedstraw, smooth
- beggarweed, florida
- bindweed, field
- bindweed, hedge
- blueweed, texas
- broomweed, common
- buckwheat, tartary
- buckwheat, wild
- burclover, california
- burcucumber
- burdock
- bursage, woolly-leaf
- buttercup, corn
- buttercup, creeping
- buttercup, roughseed
- buttercup, tall
- buttercup, western field
- campion, bladder
- carpetweed
- carrot, wild
- catchfly, nightflowering
- chamomile, corn
- chervil, bur
- chickweed, common
- chickweed, field
- chickweed, mouseear
- chicory
- clover, hop
- clover, white
- clover species
- cockle, corn
- cockle, cow
- cockle, white
- cocklebur, common
- copperleaf, hophornbeam
- cornflower
- croton, tropic
- croton, woolly
- daisy, english
- dandelion
- dock, broadleaf
- dock, curly
- dogbane, hemp
- dogfennel
- dragonhead, american
- eveningprimrose, common
- eveningprimrose, cutleaf
- falseflax, smallseed
- fern, bracken
- fleabane, annual
- flixweed
- fumitory
- garlic, wild
- carolina geranium
- goldenrod
- goldenrod, missouri
- goldenweed, common
- goosefoot, nettleleaf
- gromwell
- hawkweed
- hempnettle
- henbane, black
- henbit
- horsenettle
- ironweed
- jacobs-ladder
- jerusalem artichoke
- jimsonweed
- knapweed, black
- knapweed, diffuse
- knapweed, russian
- knapweed, spotted
- knawel
- kochia
- knotweed, prostrate
- ladysthumb
- lambsquarters, common
- lespedeza, sericea
- miner's lettuce
- prickly lettuce
- mallow, common
- mallow, dwarf
- mallow, venice
- horseweed
- mayweed
- milkweed, common
- milkweed, honeyvine
- milkweed, western whorled
- morningglory, ivyleaf
- morningglory, tall
- mustard, black
- mustard, blue
- mustard, tansy
- mustard, treacle
- mustard, tumble
- mustard, wild
- nightshade, black
- nightshade, cutleaf
- nightshade, silverleaf
- onion, wild
- pennycress, field
- pepperweed, virginia
- pigweed, prostrate
- pigweed, redroot
- pigweed, rough
- pigweed, smooth
- pigweed, tumble
- pineapple-weed
- plantain, bracted
- plantain, broadleaf
- plantain, narrow-leaved
- pokeweed, common
- poorjoe
- poppy, red-horned
- purslane, common
- pusley, florida
- radish, wild
- ragweed, common
- ragweed, giant
- ragweed, western
- ragwort, tansy
- redvine
- rocket, lance-leaf
- rocket, london
- rocket, yellow
- rubberweed, bitter
- salsify
- senna, coffee
- sesbania, hemp
- shepherd's-purse
- sicklepod
- sida, prickly
- smartweed, green
- smartweed, pennsylvania
- smartweed, swamp
- snakeweed, broom
- sneezeweed, bitter
- sorrel, red
- sowthistle, annual
- sowthistle, perennial
- sowthistle, spiny
- needles, spanish
- spikeweed, common
- spurge, leafy
- spurge, prostrate
- spurry, corn
- starbur, bristly
- starthistle, yellow
- starwort, little
- sumpweed, rough
- sunflower, annual
- sunflower, volunteer
- sweetclover
- teasel
- thistle, bull
- thistle, canada
- thistle, milk
- thistle, musk
- thistle, plumeless
- thistle, russian
- thistle, scotch
- toadflax, dalmatian
- tropical soda apple
- trumpetcreeper
- velvetleaf
- vetch
- waterhemlock, spotted
- waterprimrose, creeping
- waterprimrose, winged
- wormwood
- wormwood, louisiana
- yankeeweed
- yarrow, common
Partial control
partial4- kochia
- knotweed, prostrate
- prickly lettuce
- thistle, russian
Suppression
suppression5- brambles
- brome, downy
- brome, ripgut
- rattail fescue
- windgrass, common
Controls with a tank-mix partner
needs partner6- bindweed, field
- thistle, canada
- flixweed
- gromwell
- mayweed
- thistle, russian
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
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 and your soil texture.
Get the rate for your field: build a program and FieldMarshal cites the exact per-acre rate for your crop to the label line.
Plant-back and rotation
Your interval depends on your application rate, the rotational crop, and your state, region, and rainfall — some intervals differ in CO, KS, ND, NE, NM, OK, OR, SD, TX, and WY.
Get the interval for your rotation: build a program and FieldMarshal cites the exact plant-back for your rotational crop to the label line.
OPTI-DGA FAQ
What weeds does OPTI-DGA control?
The OPTI-DGA label names 185 weeds, including alfalfa, alkanet, palmer amaranth, powell amaranth, spiny amaranth, and slender aster. 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.
What's the plant-back interval after OPTI-DGA?
It depends on your rotational crop, application rate, and region, so the label gives a table, not one number. Build a program and FieldMarshal cites the exact interval for your rotation to the label line, so you can verify it.
Build a program →Can I tank-mix OPTI-DGA?
It depends on your target weeds, crop stage, and which partners the label approves. Build a program and FieldMarshal checks the label for approved partners and cites the condition on each, so you can verify it.
Build a program →Plan in minutes, not evenings.
Start with OPTI-DGA and let FieldMarshal build a defensible herbicide program for your field, every product, rate, and plant-back cross-referenced and cited.
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Sources
Last updated 2026-07-10.