BASF·Growth Regulators
Terpal
Terpal is a growth regulator with mepiquat chloride 305 g/L and ethephon 155 g/L in a soluble concentrate; on small-grain cereals it restrains stem growth and makes the stem stiffer against lodging.
Main advantages
- Ethephon and mepiquat chloride — restrain stem growth
- Rate 1.0–2.5 l/ha — one treatment per season
- Above +12–15 °C daily mean — the condition for treatment
Overview
About this product
Terpal is a growth regulator for small-grain cereals with two systemic actives in a soluble concentrate: mepiquat chloride 305 g/L inhibits gibberellin synthesis, and ethephon 155 g/L releases ethylene in the plant. Together they restrain stem growth and make the stem stiffer to prevent lodging.
The rate is 1.0–2.5 l/ha, one treatment during the growing season, optimally between BBCH 32 and BBCH 49 depending on the crop, at a mean daily temperature above +12–15 °C; working solution 200–400 l/ha. The product is not mixed with herbicides.
Application
Rate, timing and crops
- Rate
- 1.0–2.5 l/ha
- Timing
One treatment during the growing season.
Optimal stages: winter barley and winter rye BBCH 37–39, winter wheat BBCH 32–39, spring barley BBCH 32–49.
- Crops
- Small-grain cereals
Figures from the manufacturer, BASF. Source page
Register rates
State register, entry 15187
Зернові колосові- 1,0 – 2,5 л/га
As printed in the register.
Source: State register of pesticides and agrochemicals, file of 19.10.2026.
Specifications
Active ingredients and formulation
| Type | Growth Regulator |
|---|---|
Active ingredients
| |
| Formulation | SL · soluble concentrateUkrainian label code РК |
| Target Crops | Cereals |
| Mode of action | Mepiquat chloride inhibits gibberellin synthesis and ethephon releases ethylene in the plant cells; both actives act systemically and the growth of the stem internodes is held back. |
| Hazard class | Class 3 · moderately hazardous |
| Registration | Registered until 31.12.2032Certificate А 09715 · register entry 15187 |
| Registrant | BASF Agricultural Solutions Deutschland GmbH (Germany) |
| Manufacturer | BASF |
Vendor offers
ADAM finds the vendor
No vendor yet. ADAM finds one and replies within 24 h.
Questions & answers
What farmers ask most
- Yes. The State register lists this product as registered in Ukraine until 31.12.2032. The certificate and the register entry are in the Specifications table.
Related products
Other SKUs buyers consider here
Product specifications are compiled from publicly available manufacturer sources and are provided for guidance only — confirm all details with the vendor before purchase. Brand names, logos and trademarks are the property of their respective owners; a listing on ADAM does not imply affiliation, sponsorship or endorsement.