Herbicide label
Showdown Herbicide Label
Showdown (EPA 71368-25-5905) is a Group 9 glyphosate herbicide labeled for 33 crops. The label lists 131 controlled weeds, plus partial-control, suppression, and partner-control categories.
Showdown label facts
- Product Showdown
- EPA Reg. No. 71368-25-5905
- Distributor Helena Agri-Enterprises, LLC, d/b/a Helena Chemical Comp
- Active ingredient glyphosate
- MOA group 9
Crops on the Showdown label
Showdown is labeled for these 33 crops and uses, per the EPA label.
- field corn
- soybean
- wheat
- cotton
- potato
- peanut
- sugar beet
- barley
- sorghum
- rice
- alfalfa
- corn silage
- seed corn
- sweet corn
- popcorn
- sugarcane
- buckwheat
- proso millet
- pearl millet
- oats
- cereal rye
- triticale
- durum wheat
- wild rice
- dry edible bean
- lentil
- field pea
- sweet potato
- radish
- spinach
- turnip
- fallow
- grass seed
Weeds on the Showdown label
The Showdown label names 144 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 control131- alfalfa
- anoda, spurred
- jerusalem artichoke
- bahiagrass
- balsamapple
- barley
- barnyardgrass, common
- bassia, fivehook
- bermudagrass
- bermudagrass, water
- bindweed, field
- bluegrass, annual
- bluegrass, bulbous
- bluegrass, kentucky
- blueweed, texas
- brackenfern
- brome
- brome, downy
- bromegrass, smooth
- burcucumber
- buttercup
- canarygrass, reed
- cattail
- cheat
- chickweed, common
- chickweed, mouseear
- clover, red
- clover, white
- cocklebur, common
- cogongrass
- corn, volunteer
- crabgrass
- cupgrass, woolly
- dallisgrass
- dandelion
- dock, curly
- dogbane, hemp
- dwarf dandelion
- false flax, smallseed
- fescue
- fescue, tall
- fiddleneck
- filaree, broadleaf
- fleabane, annual
- fleabane, hairy
- foxtail
- foxtail, carolina
- foxtail, green
- foxtail, yellow
- carolina geranium
- goatgrass, jointed
- goosegrass
- groundcherry
- groundsel, common
- henbit
- horsenettle
- horseradish
- horseweed
- ice plant
- johnsongrass
- johnsongrass, seedling
- knapweed
- kochia
- lambsquarters, common
- lespedeza
- prickly lettuce
- milkweed
- millet, wild-proso
- morningglory
- muhly, wirestem
- mullein, common
- mustard, blue
- mustard, tansy
- mustard, tumble
- mustard, wild
- needles, spanish
- nightshade, black
- nightshade, silverleaf
- nutsedge, purple
- nutsedge, yellow
- wild oats
- orchardgrass
- pampasgrass
- panicum
- panicum, fall
- panicum, texas
- paragrass
- pennycress, field
- pigweed, redroot
- pigweed, smooth
- poison hemlock
- eveningprimrose, cutleaf
- pusley, florida
- quackgrass
- ragweed, common
- ragweed, giant
- reed, giant
- red rice
- rocket, london
- cereal rye
- ryegrass, annual
- ryegrass, italian
- ryegrass, perennial
- sesbania, hemp
- shattercane
- shepherd's-purse
- sicklepod
- signalgrass, broadleaf
- smartweed, pennsylvania
- smartweed, swamp
- sowthistle, annual
- sprangletop
- spurge, annual
- spurry, umbrella
- starbur, bristly
- starthistle, yellow
- stinkgrass
- sunflower
- sida, prickly
- thistle, artichoke
- thistle, canada
- thistle, russian
- timothy
- trumpetcreeper
- vaseygrass
- velvetgrass
- velvetleaf
- waterhemp, common
- wheat
- wheatgrass, western
- witchgrass
Partial control
partial5- alligatorweed
- phragmites
- redvine
- sweet potato, wild
- torpedograss
Suppression
suppression5- beggarweed, florida
- bentgrass
- dogfennel
- smutgrass
- thistle, musk
Controls with a tank-mix partner
needs partner3- bursage, woolly-leaf
- mallow
- spurge, leafy
Showdown 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.
Showdown FAQ
What weeds does Showdown control?
The Showdown label names 144 weeds, including alfalfa, spurred anoda, jerusalem artichoke, bahiagrass, balsamapple, and barley. Control varies by crop, rate, and timing.
What crops is Showdown labeled for?
Showdown is labeled for 33 crops and uses, including field corn, soybeans, wheat, cotton, and potato.
What is the active ingredient in Showdown? Is it a generic?
Showdown's active ingredient is glyphosate (MOA Group 9). 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.