Herbicide label
Hat Trick Three Way
Hat Trick Three Way (EPA 34704-1017) is a Group 4 clopyralid, fluroxypyr 1-methylheptyl ester, and mcpa herbicide labeled for 5 crops. The label lists 87 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.
Free to create your account. Every line references the label, so you can check it against the source.
Hat Trick Three Way label facts
- Product Hat Trick Three Way
- EPA Reg. No. 34704-1017
- Registrant Loveland Products, Inc.
- Active ingredient clopyralid, fluroxypyr 1-methylheptyl ester, and mcpa
- MOA group 4
Crops on the Hat Trick Three Way label
Hat Trick Three Way is labeled for these 5 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 Hat Trick Three Way label
The Hat Trick Three Way label names 99 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 control87- alfalfa
- jerusalem artichoke
- beans, volunteer
- bedstraw, catchweed
- bindweed, hedge
- buckwheat, wild
- burcucumber
- burdock
- buttercup
- volunteer canola
- chamomile, false
- mayweed, chamomile
- chickweed
- clover, black medic
- clover, hop
- clover, red
- sweetclover
- clover, white
- cocklebur, common
- coffeeweed
- cornflower
- hoary cress
- croton
- daisy, oxeye
- dandelion
- devilsclaw
- dock, perennial
- dock, seedling
- dogbane, hemp
- fiddleneck
- fleabane, hairy
- flixweed
- volunteer flax
- galinsoga
- grape species
- groundcherry
- groundsel, common
- hawksbeard, narrowleaf
- hawkweed, orange
- hawkweed, yellow
- horseweed
- jimsonweed
- knapweed, diffuse
- knapweed, spotted
- knotweed
- kochia
- lambsquarters
- lentil, volunteer
- prickly lettuce
- locoweed, Lambert
- locoweed, white
- mallow, common
- mallow, venice
- marshelder
- morningglory
- mustard
- nettle, burning
- nightshade, black
- nightshade, cutleaf
- nightshade, hairy
- pea, volunteer
- pennycress, field
- pigweed
- pineapple-weed
- plantain, narrow-leaved
- puncturevine
- purslane, common
- ragweed, common
- ragweed, giant
- rocket, london
- salsify, meadow
- shepherd's-purse
- sicklepod
- sorrel, red
- sowthistle, annual
- sowthistle, perennial
- starthistle, yellow
- sunflower
- teasel, common
- thistle, bull
- thistle, canada
- thistle, musk
- velvetleaf
- vetch
- whitebush
- carrot, wild
- radish, wild
Suppression
suppression14- horsetail, field
- filaree, broadleaf
- knapweed, russian
- knotweed, ladysthumb
- mallow
- horseweed
- oxalis
- plantain, narrow-leaved
- potato, volunteer
- smartweed
- smartweed, ladysthumb
- spurge, prostrate
- thistle, russian
- wormwood, biennial
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
Hat Trick Three Way 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.
Hat Trick Three Way FAQ
What weeds does Hat Trick Three Way control?
The Hat Trick Three Way label names 99 weeds, including alfalfa, jerusalem artichoke, volunteer beans, catchweed bedstraw, hedge bindweed, and wild buckwheat. Control varies by crop, rate, and timing.
What crops is Hat Trick Three Way labeled for?
Hat Trick Three Way is labeled for 5 crops and uses, including wheat, barley, durum wheat, oats, and grass seed.
What is the active ingredient in Hat Trick Three Way? Is it a generic?
Hat Trick Three Way'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 Hat Trick Three Way?
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 Hat Trick Three Way?
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 Hat Trick Three Way and let FieldMarshal build a defensible herbicide program for your field, every product, rate, and plant-back cross-referenced and checked against the label.
Free account and label filter. Building a program is paid, metered by use, so you pay only for what you build.
Sources
Last updated 2026-07-14.