Herbicide label
Weld
Weld (EPA 1381-246) is a Group 4 clopyralid, fluroxypyr 1-methylheptyl ester, and mcpa herbicide labeled for 4 crops. The label lists 66 controlled weeds, plus partial-control, suppression, and partner-control categories.
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Weld label facts
- Product Weld
- EPA Reg. No. 1381-246
- Registrant WinField Solutions, LLC
- Active ingredient clopyralid, fluroxypyr 1-methylheptyl ester, and mcpa
- MOA group 4
Crops on the Weld label
Weld is labeled for these 4 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 Weld label
The Weld label names 71 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 control66- alfalfa
- jerusalem artichoke
- bean, volunteer
- bedstraw, catchweed
- black medic
- buckwheat, wild
- buffalobur
- volunteer canola
- chamomile, false
- mayweed, chamomile
- chickweed
- clover, hop
- clover, red
- clover, white
- cocklebur, common
- cornflower
- dandelion
- dock, curly
- dogbane, hemp
- volunteer flax
- flixweed
- hawksbeard, narrowleaf
- hawkweed, orange
- hawkweed, yellow
- horseweed
- jimsonweed
- kochia
- ladysthumb
- lambsquarters, common
- lentil, volunteer
- prickly lettuce
- mallow, common
- mallow, venice
- marshelder
- morning glory
- mustard, tumble
- mustard, wild
- nightshade, black
- nightshade, cutleaf
- nightshade, eastern black
- nightshade, hairy
- pea, volunteer
- pennycress, field
- pigweed, redroot
- pineapple-weed
- puncturevine
- purslane, common
- ragweed, common
- ragweed, giant
- salsify, meadow
- shepherd's-purse
- smartweed, green
- smartweed, pennsylvania
- sowthistle, annual
- starthistle, yellow
- sunflower
- sweetclover
- tansymustard, pinnate
- teasel, common
- thistle, bull
- thistle, canada
- thistle, musk
- thistle, russian
- velvetleaf
- vetch
- wormwood, biennial
Suppression
suppression6- alfalfa
- bindweed, field
- horsetail
- knotweed
- potato, volunteer
- sowthistle, perennial
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
Weld 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, the rotational crop, and your state, region, and rainfall — some intervals differ in NY.
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.
Weld FAQ
What weeds does Weld control?
The Weld label names 71 weeds, including alfalfa, jerusalem artichoke, volunteer bean, catchweed bedstraw, black medic, and wild buckwheat. Control varies by crop, rate, and timing.
What crops is Weld labeled for?
Weld is labeled for 4 crops and uses, including wheat, barley, oats, and durum wheat.
What is the active ingredient in Weld? Is it a generic?
Weld's active ingredient is clopyralid, fluroxypyr 1-methylheptyl ester, and mcpa (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 Weld?
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 Weld?
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.
Build a program →Plan in minutes, not hours.
Start with Weld and let FieldMarshal build a defensible herbicide program for your field, every product, rate, and plant-back cross-referenced and checked against the label.
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Sources
Last updated 2026-07-14.