Herbicide label
Velpar AlfaMax
Velpar AlfaMax (EPA 61842-45) is a Group 5 diuron and hexazinone herbicide labeled for 1 crops. The label lists 40 controlled weeds, plus partial-control, suppression, and partner-control categories.
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“VELPAR ALFAMAX is absorbed through the roots and foliage.”
Velpar AlfaMax label facts
- Product Velpar AlfaMax
- EPA Reg. No. 61842-45
- Registrant Tessenderlo Kerley, Inc.
- Active ingredient diuron and hexazinone
- MOA group 5
Crops on the Velpar AlfaMax label
Velpar AlfaMax is labeled for these 1 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 Velpar AlfaMax label
The Velpar AlfaMax label names 50 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 control40- alfalfa
- barnyardgrass, common
- bluegrass, annual
- buckwheat, wild
- catchfly, english
- brome, downy
- chickweed, common
- spurry, corn
- crabgrass
- false dandelion
- dogfennel
- rattail fescue
- fiddleneck
- filaree, redstem
- flixweed
- gromwell, corn
- groundcherry, annual
- groundsel, common
- knawel, annual
- lambsquarters, common
- miner's lettuce
- prickly lettuce
- mustard, blue
- mustard, Jim Hill
- mustard, wild
- orchardgrass
- pennycress, field
- pigweed
- purslane, common
- radish, wild
- ragweed, common
- rocket, london
- rocket, yellow
- ryegrass, annual
- salsify
- shepherd's-purse
- sprangletop, red
- tansymustard, pinnate
- velvetgrass
- vernalgrass, sweet
Suppression
suppression10- bluegrass, perennial
- cockle, white
- cocklebur, common
- dandelion, common
- foxtail
- mexicantea
- sida, prickly
- quackgrass
- sesbania, hemp
- sicklepod
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
Velpar AlfaMax 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 CA, ID, MT, NV, OR, UT, and WA.
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.
Velpar AlfaMax FAQ
What weeds does Velpar AlfaMax control?
The Velpar AlfaMax label names 50 weeds, including alfalfa, common barnyardgrass, annual bluegrass, wild buckwheat, english catchfly, and downy brome. Control varies by crop, rate, and timing.
What crops is Velpar AlfaMax labeled for?
Velpar AlfaMax is labeled for 1 crops and uses, including alfalfa.
What is the active ingredient in Velpar AlfaMax? Is it a generic?
Velpar AlfaMax's active ingredient is diuron and hexazinone (MOA Group 5). 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 Velpar AlfaMax?
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 Velpar AlfaMax?
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 Velpar AlfaMax 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.