
THERIX
Tebuconazole 250 g/L
THERIX is a broad-spectrum systemic fungicide containing 250 g/L (25.8 % w/w) tebuconazole as an Oil In Water Emulsion (EW). It is absorbed into the vegetative parts of the plant and translocated throughout. The product controls a wide range of diseases in cereals, oilseed rape, field beans, and linseed, including rusts, mildews, and leaf spots.
- Country
- United KingdomApproved
- Formulation
- Emulsion, oil in water
- Pack sizes
- 5L
- Mode of action
- FRAC 3
Key uses· 18
- Septoria glume blotch
- Yellow rust
- Brown rust
- Fusarium ear blight
- Sooty moulds
- Powdery mildew
- Crown rust
- Rhynchosporium

United Kingdom registration
Registration, documents and approved uses for this market.
United Kingdom registration
- Country
- United KingdomApproved
- Registration number
- Not published
Label & safety
Approved uses
Barley
- BBCH
- 30
Oat
- BBCH
- 30
Rye
- BBCH
- 30
Wheat
- BBCH
- 30
| Crop | PHI | BBCH |
|---|---|---|
| Barley | — | 30 |
| Faba bean | 35d | — |
| Flax / linseed | 35d | — |
| Oat | — | 30 |
| Oilseed rape | — | — |
| Rye | — | 30 |
| Wheat | — | 30 |
Product details
Mode-of-action group, classified by the Fungicide Resistance Action Committee. Rotate products across different groups to slow resistance build-up.
Emulsion, oil in waterEW
| Active ingredients | Concentration | Mode of action |
|---|---|---|
| Tebuconazole | 250 g/L | FRAC3 |
Pack sizes
- 5L
To manage resistance, avoid consecutive applications of fungicides from the same FRAC group. Alternate with products of a different mode of action within a programme.
Find more products
Other fungicide products registered for the same crops.


