Herbicide label

GCS Quinclo 4

GCS Quinclo 4 (EPA 94730-26) is a Group 4 quinclorac herbicide labeled for 6 crops. The label lists 26 controlled weeds, plus partial-control, suppression, and partner-control categories.

Build the herbicide program for your field

Tell FieldMarshal your crop, weeds, and rotation. Get back a complete program, products, rates, plant-back, and tank-mix, with every line checked against the label so you can verify it yourself.

Built from 1,700+ EPA herbicide labels and 49 state weed-control guides. Made for crop advisors and growers.

Build a program → or filter every label, free

Free to create your account. Every line references the label, so you can check it against the source.

Official EPA label (PDF)

GCS Quinclo 4 label facts

Product GCS Quinclo 4
EPA Reg. No. 94730-26
Registrant Generic Crop Science, LLC
Active ingredient quinclorac
MOA group 4

Crops on the GCS Quinclo 4 label

GCS Quinclo 4 is labeled for these 6 crops and uses, per the EPA label.

Need the rate or timing for one of these? Filter every label by your crop, free.

Weeds on the GCS Quinclo 4 label

The GCS Quinclo 4 label names 40 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 control26

barnyardgrass, common
bedstraw, catchweed
bindweed, field
bindweed, hedge
clover species
crabgrass, large
eclipta
volunteer flax
foxtail, giant
foxtail, green
foxtail, yellow
jointvetch
junglerice
prickly lettuce
morningglory
morningglory, cypressvine
morningglory, entireleaf
morningglory, ivyleaf
morningglory, palmleaf
morningglory, pitted
morningglory, purple moonflower
morningglory, tall
sesbania, hemp
signalgrass, broadleaf
spurge, leafy
thistle, canada

Partial control

partial1

alligatorweed

Suppression

suppression9

dandelion
kochia
lambsquarters, common
ragweed, common
ragweed, giant
sowthistle, perennial
sunflower, wild
thistle, russian
velvetleaf

Controls with a tank-mix partner

needs partner4

cocklebur, common
dayflower
nutsedge, yellow
sprangletop

Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.

GCS Quinclo 4 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 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, the rotational crop, and your state, region, and rainfall — some intervals differ in CO, DE, ID, IL, KS, MD, MN, MO, MT, ND, NE, NM, NV, OK, OR, PA, SD, TX, UT, VA, WA, and WY.

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 Quinclo 4 FAQ

What weeds does GCS Quinclo 4 control?

The GCS Quinclo 4 label names 40 weeds, including common barnyardgrass, catchweed bedstraw, field bindweed, hedge bindweed, clover species, and large crabgrass. Control varies by crop, rate, and timing.

What crops is GCS Quinclo 4 labeled for?

GCS Quinclo 4 is labeled for 6 crops and uses, including wheat, sorghum, rice, fallow, and grass seed.

What is the active ingredient in GCS Quinclo 4? Is it a generic?

GCS Quinclo 4's active ingredient is quinclorac (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 GCS Quinclo 4?

It depends on your rotational crop, application rate, and region, so the label gives a table, not one number. Build a program and FieldMarshal gives you the exact interval for your rotation from the label line, so you can verify it.

Build a program →

Can I tank-mix GCS Quinclo 4?

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 gives the condition on each, so you can verify it.