Mitron Flo 20L (Herbicide)

Mitron Flo is an early post-emergence selective Herbicide for Broadleaf Weed Control in Beet Crops. It acts by both Root and Leaf Absorption. Mitron Flo controls a wide range of Broadleaf Weeds, including Fathen, Nettles, Amaranthus, Chickweed, Galinsoga, Groundsel, Shepherd’s Purse, and many others.
Active Ingredient:
700g/litre Metamitron in the form of a Suspension Concentrate.
Mixing Rates per Tank: (Real NZ Field Use).
Label rates:
- Pre-emergence: 1.0 – 4.0 L/ha - Post-emergence: multiple low-dose passes.
- Max Total: 6.0 L/ha per crop.
Example: 200L tank.
SCENARIO A: 200 L/ha (1 tank = 1 ha).
- Light rate: 1.0 L/ha → 1.0 L per tank.
- Medium: 2.0 L/ha → 2.0 L per tank.
- Heavy: 4.0 L/ha → 4.0 L per tank.
SCENARIO B: 100 L/ha (tank covers 2 ha).
- 1.0 L/ha → 2.0 L per tank.
- 2.0 L/ha → 4.0 L per tank.
Typical Real-World Use: (IMPORTANT).
Most Beet Programs don’t dump the full rate at once,
Instead they split applications (e.g. 1–1.5 L/ha repeated) applied every 5–10 days, Why?
- Safer on Crop.
- Better on Small Weeds.
- More consistent control.
Mixing Tips:
- SC formulation → shake + constant agitation.
- Use 200–300 L/ha water for good coverage Fine–medium spray.
- Spray Weeds when VERY small (cotyledon stage).
Best Alternatives / Rotation Partners.
Mitron Flo = Group C1 → same resistance group as Metribuzin (Metriphar) Linuron.
- So don’t rely on it alone year after year.
Key Tank Mix Partners (Very Common).
- Ethofumesate (Core Beet Partner).
- Expands control (especially Grasses).
Often tank mixed:
- Mitron + Ethofumesate = standard Beet Program.
- Phenmedipham / Desmedipham (where used).
- Boosts post-emerge Broadleaf Control.
- Residual partners (pre-emerge).
- Helps extend control window.
- Resistance Strategy.
- Rotate away from C1 when possible.
- Use different Chemistry in Rotation Crops.
- Avoid Continuous beet + C1 herbicides.
Suitability By Crop (CRITICAL).
- Fodder Beet.
- Sugar Beet.
- Mangolds.
Perfect Fit (Main Use):
Controls:
- Fathen.
- Chickweed.
- Amaranthus.
- Shepherd’s Purse.
Works Best:
- Early post-emergence (Tiny Weeds).
This is a core Herbicide in Beet Programs.
Not Suitable For:(High Crop Damage Risk Outside Label Crops).
- Don’t use outside Beet Crops.
- Maize.
- Brassicas.
- Pasture.
Weed Spectrum: (What It’s Good At).
Strong on:
- Fathen.
- Chickweed.
- Amaranthus.
- Nettles.
- Groundsel.
- Shepherd’s Purse.
Weaker on:
- Nightshade (moderate).
- Wireweed (moderate).
- Most Grasses.
That’s why It’s almost always tank mixed.
Safety & Use Risks:
- Harmful if Swallowed or on Skin.
- Causes eye/skin irritation.
- Very toxic to Aquatic Life.
Practical Risks:
- Spray drift can damage other Crops.
- Soil persistence → possible carryover.
Avoid:
- Sandy soils + heavy rain (leaching risk).
Key Practical Takeaways:
Strengths.
- Excellent early Broadleaf Control in Beet.
Flexible:
- Pre + post use.
- Works well in split-dose Programs.
Weaknesses:
- Weak on Grasses.
- Needs small Weeds to work well.
- Same resistance group as:
- Linuron and Metribuzin.
Typical NZ Beet Program: (Simple Example).
- Pre-emerge: Mitron + Ethofumesate.
- Early post (Cotyledon Weeds): Mitron (low rate) + partner.
- Repeat: Every 5–10 days.
Goal:
- Keep Weeds Tiny at all times.
Mitron vs Metribuzin:(Quick Insight).
- Mitron (metamitron), Safer on Beet, Designed specifically for Beet, Used in split doses.
- Metribuzin, Broader Crop use, Stronger residual more Crop risk.
It is best to use Mitron Flo In Fodder Beet Crops, when Weeds are Just emerging as part of a program (not standalone).
Caution:
Must be used strictly according to label directions.

Pack Size: 20Lt

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