Skip to content
RainbowSKU 46763

Stembolk 10l (trinexapac-ethyl) - growth regulator

Stembolk is a modern plant growth regulator that strengthens stems and stalks, preventing lodging of cereals and oilseed rape.

€286.44€358.05Halloween −20%
incl. VAT, plus shipping

Sold only to professional users with a certificate of competence.

Description

Stembolk – growth and development regulator preventing lodging of cereals and oilseed rape

Stembolk is a modern plant growth regulator that strengthens the base of stems and stalks, preventing lodging of cereals and oilseed rape. It contains trinexapac ethyl (250 g/l), an active substance from the cyclohexanedione group, which limits excessive internode elongation while not negatively affecting the root system. The product is mainly absorbed through leaves, stalks or stems and quickly transported to meristematic tissues. Shortening and stiffening of stalks increases plant resistance to weather conditions, minimising the risk of yield losses.

Benefits of using Stembolk

  • Increased lodging resistance thanks to shortening and stiffening of stalks and stems,
  • Safety for the root system – no negative impact on plant development,
  • Flexibility of use across a wide range of developmental stages of cereals and oilseed rape,
  • Effectiveness in intensive cultivation technologies – stabilises plants under high nitrogen fertilisation,
  • Long-lasting effects – influences plant development throughout the growing season.

Application and recommended doses

Stembolk is intended for use in winter and spring cereals, winter and spring oilseed rape, and seed plantations of grasses and red clover.

  • Winter wheat, winter barley, winter triticale, winter rye – apply from tillering stage to flag leaf stage (BBCH 25-39) at a dose of 0.3-0.6 l/ha,
  • Spring wheat, spring barley, spring oats – apply from first node stage to flag leaf stage (BBCH 31-39) at a dose of 0.3-0.4 l/ha,
  • Winter oilseed rape, spring oilseed rape, winter turnip rape – apply from main shoot elongation to flower bud development stage (BBCH 39-55) at a dose of 1.5 l/ha,
  • Seed plantations of grasses and red clover – apply at main shoot development stage at a dose of 0.8-1.5 l/ha.

The recommended water volume is 200-400 l/ha, adjusted to plant size and density.

Summary

Stembolk is an effective growth regulator that provides plants with greater lodging resistance, supporting optimal yield development. Thanks to precise action and wide application spectrum, this product is an essential element of modern cereal and oilseed rape protection.

Application and dosage

Crop

How to apply? Dosage

When to apply? 

Winter wheat

Maximum/recommended dose for single application: 0.4 l/ha.

Recommended water volume: 200-400 l/ha.
Adjust water volume to plant size and density.
Recommended spraying: medium droplet.

Application timing: Use from tillering stage to flag leaf stage (BBCH 25–39).
Can be applied in mixture with Antywylegacz Płynny 675 SL at doses:
STEMBOLK - 0.3 l/ha + Antywylegacz Płynny 675 SL - 1 l/ha.
Application timing: Use from first node to third node stage (BBCH 31–33).
Number of treatments: 1
Can also be applied in split doses:
Application timing:
– at the beginning of stem elongation (BBCH 29–31) - dose 0.3 l/ha and
– at flag leaf stage (BBCH 39) - dose 0.3 l/ha.
Number of treatments: 2.
Maximum number of treatments per growing season: 1 (single application) or 2 (split doses).

Winter barley

Maximum/recommended dose for single application: 0.6 l/ha.

Recommended water volume: 200-400 l/ha.
Adjust water volume to plant size and density.
Recommended spraying: medium droplet.

Application timing: Use from first node to fourth node stage (BBCH 31–34).
Maximum number of treatments per growing season: 1.

Winter rye

Maximum/recommended dose for single application: 0.3 l/ha.

Recommended water volume: 200-400 l/ha.
Adjust water volume to plant size and density.
Recommended spraying: medium droplet.

Application timing: Use from first node to flag leaf stage (BBCH 31–39).
Maximum number of treatments per growing season: 1.

Winter triticale

Maximum/recommended dose for single application: 0.6 l/ha.

Recommended water volume: 200-400 l/ha.
Adjust water volume to plant size and density.
Recommended spraying: medium droplet.

Application timing: Use from first node to second node stage (BBCH 31–32).
Maximum number of treatments per growing season: 1.

Spring wheat

Maximum/recommended dose for single application: 0.4 l/ha.

Recommended water volume: 200-400 l/ha.
Adjust water volume to plant size and density.
Recommended spraying: medium droplet.

Application timing: Use from end of tillering to flag leaf stage (BBCH 29–39).
Maximum number of treatments per growing season: 1.

Spring barley

Maximum/recommended dose for single application: 0.4 l/ha.

Recommended water volume: 200-400 l/ha.
Adjust water volume to plant size and density.
Recommended spraying: medium droplet.

Application timing: Use from first node to second node stage (BBCH 31–32).
Maximum number of treatments per growing season: 1.

Spring oats

Maximum/recommended dose for single application: 0.4 l/ha.

Recommended water volume: 200-400 l/ha.
Adjust water volume to plant size and density.
Recommended spraying: medium droplet.

Application timing: Use from first node to fourth node stage (BBCH 31–34).
Can be applied in mixture with Antywylegacz Płynny 675 SL
Application timing: use from first node to fourth node stage, at doses:
STEMBOLK - 0.2 l/ha + Antywylegacz Płynny 675 SL - 1 l/ha.
Maximum number of treatments per growing season: 1.

Winter oilseed rape

Maximum/recommended dose for single application: 1.5 l/ha.

Recommended water volume: 200-400 l/ha.
Adjust water volume to plant size and density.
Recommended spraying: medium droplet.

Apply from the end of main shoot elongation (visible 9 or more internodes) to the end of flower bud development on the main inflorescence (visible individual flower buds, still closed) (BBCH 39-55).
Maximum number of treatments per growing season: 1

Stay in touch with us

Once a month we write about price cuts, new stock and the treatment dates that are easy to forget. Enough to catch the offers — and not one message more.

Drawing: a gardener and a farmer with beers, one telling a story, the other laughing