Herbicide label
MesoCore Herbicide Label
MesoCore (EPA 42750-342) is a Group 4 and 27 clopyralid and mesotrione herbicide labeled for 4 crops. The label lists 0 controlled weeds, plus partial-control, suppression, and partner-control categories.
MesoCore label facts
- Product MesoCore
- EPA Reg. No. 42750-342
- Registrant Albaugh, LLC
- Active ingredient clopyralid and mesotrione
- MOA group 4 and 27
Crops on the MesoCore label
MesoCore is labeled for these 4 crops and uses, per the EPA label.
Weeds on the MesoCore label
The MesoCore label names 96 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 with a tank-mix partner
needs partner96- barnyardgrass, common
- crabgrass
- crowfootgrass
- cupgrass, prairie
- cupgrass, southwestern
- foxtail, bristly
- foxtail, giant
- foxtail, yellow
- foxtail, yellow, white, robust purple
- goosegrass
- foxtail, millet
- nutsedge, yellow
- panicum, browntop
- panicum, fall
- red rice
- signalgrass, broadleaf
- signalgrass, narrowleaf
- sprangletop, red
- stinkgrass
- witchgrass
- crabgrass, large
- amaranth, palmer
- amaranth, powell
- amaranth, spiny
- beggarweed, florida
- buckwheat, wild
- buffalobur
- carpetweed
- chickweed, common
- clover, red
- cocklebur, common
- deadnettle, purple
- devil's-claw
- galinsoga
- groundcherry, annual
- groundcherry, cutleaf
- henbit
- horseweed
- jimsonweed
- kochia
- lambsquarters, common
- mallow, venice
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, pitted
- morningglory, tall
- mustard, wild
- nightshade, black
- nightshade, eastern black
- nightshade, hairy
- pea, volunteer
- pigweed, redroot
- pigweed, smooth
- pigweed, tumble
- pokeweed, common
- potato, volunteer
- puncturevine
- purslane, common
- pusley, florida
- radish, wild
- ragweed, common
- ragweed, giant
- sesbania, hemp
- shepherd's-purse
- sicklepod
- sida, prickly
- smartweed, ladysthumb
- smartweed, pennsylvania
- sunflower, annual
- velvetleaf
- waterhemp, common
- wormwood, biennial
- cupgrass, woolly
- johnsongrass, seedling
- millet, wild-proso
- wild oats
- panicum, texas
- sandbur, field
- shattercane
- volunteer wheat
- bedstraw, catchweed
- prickly lettuce
- atriplex
- bean, volunteer
- clover species
- hemp
- horsenettle
- lentil, volunteer
- volunteer soybean
- thistle, canada
- alfalfa, volunteer seedling
- burcucumber
- carrot, wild
- dandelion, common
- dock, curly
- knotweed, prostrate
MesoCore 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.
MesoCore FAQ
What weeds does MesoCore control?
The MesoCore label names 96 weeds. Control varies by crop, rate, and timing.
What crops is MesoCore labeled for?
MesoCore is labeled for 4 crops and uses, including field corn, seed corn, corn silage, and popcorn.
What is the active ingredient in MesoCore? Is it a generic?
MesoCore's active ingredient is clopyralid and mesotrione (MOA Group 4 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.