Herbicide label
MBC-33
MBC-33 (EPA 87994-2) is a chloropicrin and methyl bromide herbicide labeled for 2 crops. The label lists 2 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 cited to 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 cited to the label, so you can check it against the source.
MBC-33 label facts
- Product MBC-33
- EPA Reg. No. 87994-2
- Registrant Triest AG Group Inc.
- Active ingredient chloropicrin and methyl bromide
- MOA group not classified
Crops on the MBC-33 label
MBC-33 is labeled for these 2 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 MBC-33 label
The MBC-33 label names 2 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 control2- grass seeds
- weed seeds
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
MBC-33 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 cites the exact per-acre rate for your crop to the label line.
MBC-33 FAQ
What weeds does MBC-33 control?
The MBC-33 label names 2 weeds, including grass seeds and weed seeds. Control varies by crop, rate, and timing.
What crops is MBC-33 labeled for?
MBC-33 is labeled for 2 crops and uses, including potato and sweet potato.
What is the active ingredient in MBC-33? Is it a generic?
MBC-33's active ingredient is chloropicrin and methyl bromide. Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.
Can I tank-mix MBC-33?
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 cites the condition on each, so you can verify it.
Build a program →Plan in minutes, not evenings.
Start with MBC-33 and let FieldMarshal build a defensible herbicide program for your field, every product, rate, and plant-back cross-referenced and cited.
Free account and label filter. Building a program is paid, metered by use, so you pay only for what you build.
Sources
Last updated 2026-07-11.