Herbicide label
GCS MesoXtra Herbicide Label
GCS MesoXtra (EPA 94730-36) is a Group 5, 15, and 27 atrazine, mesotrione, and metolachlor herbicide labeled for 5 crops. The label lists 63 controlled weeds, plus partial-control, suppression, and partner-control categories.
GCS MesoXtra label facts
- Product GCS MesoXtra
- EPA Reg. No. 94730-36
- Registrant Generic Crop Science, LLC
- Active ingredient atrazine, mesotrione, and metolachlor
- MOA group 5, 15, and 27
Crops on the GCS MesoXtra label
GCS MesoXtra is labeled for these 5 crops and uses, per the EPA label.
Weeds on the GCS MesoXtra label
The GCS MesoXtra label names 73 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 control63- amaranth, palmer
- amaranth, powell
- barnyardgrass, common
- beggarweed, florida
- buckwheat, wild
- buffalobur
- carpetweed
- chickweed, common
- cocklebur, common
- crabgrass
- crowfootgrass
- cupgrass, prairie
- cupgrass, southwestern
- deadnettle, purple
- devil's claw
- foxtail, giant
- foxtail, green
- foxtail, robust
- foxtail, yellow
- galinsoga
- goosegrass
- henbit
- horseweed
- jimsonweed
- kochia
- lambsquarters, common
- mallow, venice
- foxtail, millet
- morningglory, entireleaf
- morningglory, ivyleaf
- mustard, wild
- nightshade, black
- nightshade, eastern black
- nightshade, hairy
- nutsedge, yellow
- panicum, browntop
- panicum, fall
- pigweed, redroot
- pigweed, smooth
- purslane, common
- pusley, florida
- radish, wild
- ragweed, common
- ragweed, giant
- red rice
- sesbania, hemp
- shepherd's-purse
- sida, prickly
- signalgrass, broadleaf
- signalgrass, narrowleaf
- smartweed, ladysthumb
- smartweed, pennsylvania
- sprangletop, red
- starbur, bristly
- sunflower, annual
- velvetleaf
- waterhemp, common
- witchgrass
- hemp
- horsenettle
- pokeweed, common
- potatoes, volunteer
- thistle, canada
Suppression
suppression10- bedstraw, catchweed
- cupgrass, woolly
- johnsongrass, seedling
- millet, wild-proso
- panicum, texas
- puncturevine
- sandbur, field
- shattercane
- sicklepod
- dandelion
GCS MesoXtra 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.
GCS MesoXtra FAQ
What weeds does GCS MesoXtra control?
The GCS MesoXtra label names 73 weeds, including palmer amaranth, powell amaranth, common barnyardgrass, florida beggarweed, wild buckwheat, and buffalobur. Control varies by crop, rate, and timing.
What crops is GCS MesoXtra labeled for?
GCS MesoXtra is labeled for 5 crops and uses, including field corn, sorghum, corn silage, sweet corn, and popcorn.
What is the active ingredient in GCS MesoXtra? Is it a generic?
GCS MesoXtra's active ingredient is atrazine, mesotrione, and metolachlor (MOA Group 5, 15, and 27). 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.