Herbicide label
Zalo Herbicide Label
Zalo (EPA 5481-686) is a Group 1 and 10 glufosinate and quizalofop-p-ethyl herbicide labeled for 3 crops. The label lists 105 controlled weeds, plus partial-control, suppression, and partner-control categories.
“ZALO HERBICIDE is absorbed by plant foliage and controls weeds by ACC-ase enzyme inhibition (Group 1) and glutamine biosynthesis inhibition (Group 10).”
Zalo label facts
- Product Zalo
- EPA Reg. No. 5481-686
- Registrant Amvac Chemical Corporation
- Active ingredient glufosinate and quizalofop-p-ethyl
- MOA group 1 and 10
Crops on the Zalo label
Zalo is labeled for these 3 crops and uses, per the EPA label.
Weeds on the Zalo label
The Zalo label names 106 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 control105- amaranth, palmer
- amaranth, powell
- anoda, spurred
- barley
- barnyardgrass, common
- bedstraw, catchweed
- beggarweed, florida
- bluegrass, annual
- blueweed, texas
- brome, downy
- buckwheat, wild
- buffalobur
- burcucumber
- volunteer canola
- carpetweed
- chickweed, common
- cocklebur, common
- corn, volunteer
- copperleaf, hophornbeam
- cotton, volunteer
- crabgrass, large
- crabgrass, smooth
- croton, tropic
- croton, woolly
- crowfootgrass
- cupgrass, woolly
- devil's-claw
- eclipta
- fleabane, annual
- foxtail, bristly
- foxtail, giant
- foxtail, green
- foxtail, robust purple
- foxtail, yellow
- galinsoga, hairy
- galinsoga, small flower
- geranium, cutleaf
- goatgrass, jointed
- goosegrass
- groundcherry, cutleaf
- hempnettle
- horsenettle
- jimsonweed
- rhizome johnsongrass
- johnsongrass, seedling
- junglerice
- knotweed
- kochia
- ladysthumb
- lambsquarters, common
- mallow, common
- mallow, venice
- horseweed
- marshelder, annual
- black medic
- millet, volunteer
- millet, wild-proso
- morning glory, annual
- mustard, wild
- nightshade, annual
- oat, volunteer
- wild oats
- panicum, fall
- panicum, texas
- pennycress, field
- pigweed, prostrate
- pigweed, redroot
- pigweed, smooth
- pigweed, spiny
- pigweed, tumble
- puncturevine
- purslane, common
- pusley, florida
- quackgrass
- ragweed, common
- ragweed, giant
- red rice
- rye, volunteer
- ryegrass, italian
- sandbur, field
- senna, coffee
- sesbania, hemp
- shattercane
- shepherd's-purse
- sicklepod
- sida, prickly
- signalgrass, broadleaf
- smartweed, pennsylvania
- smellmelon
- sorghum, volunteer
- sowthistle, annual
- volunteer soybean
- sprangletop
- spurge, prostrate
- spurge, spotted
- starbur, bristly
- stinkgrass
- sunflower, annual
- thistle, russian
- velvetleaf
- waterhemp, common
- volunteer wheat
- windgrass, common
- muhly, wirestem
- witchgrass
Partial control
partial1- bermudagrass
Zalo 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.
Zalo FAQ
What weeds does Zalo control?
The Zalo label names 106 weeds, including palmer amaranth, powell amaranth, spurred anoda, barley, common barnyardgrass, and catchweed bedstraw. Control varies by crop, rate, and timing.
What crops is Zalo labeled for?
Zalo is labeled for 3 crops and uses, including soybeans, cotton, and canola.
What is the active ingredient in Zalo? Is it a generic?
Zalo's active ingredient is glufosinate and quizalofop-p-ethyl (MOA Group 1 and 10). 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.