Planteværn Online > Skadevoldere - Weed biology<br> <sub>Agro-region: Denmark</sub> - Thale Cress
Crop Protection Online    
27.4 2024 undefined

Weed biology
Agro-region: Denmark

Thale Cress Previous page Next page

Go to identification key for weeds

Can be mistaken for

Shepherd's Purse, which has larger and more oval dicotyledon leaves.

Characteristics

Cotyledons
Almost round with entire leaf margins. Stalked. Smooth surface. Length approx. 2 mm.

True leaves
The first true leaves are oval with entire leaf margins and stalked. Later, the leaves become more oblong, almost egg-shaped with slightly sinuate leaf margins. The surface on both types of leaves seems rough and is covered with star-shaped hairs. Length approx. 2-4 mm.

Mature plant
Thale Cress is a small plant with 10-25 cm high, erect stems. All leaves are arranged in rosettes. The siliques are line-shaped and spreading from the stem. The diameter of the flower is approx. 3 mm.

Seed
Egg-shaped with a comb-like rise at the side. Thousand grain weight is very low.

Biology

Propagation and dispersal
Only through seeds.

Habit
Winter annual.

Importance

The species is frequently found in autumn-sown crops, especially on sandy soils. Thale Cress is usually of no significance as a weed.

For treatment options, consult 'Herbicides Across'.
For more options, consult 'Main Menu'.

Taxonomy

Cruciferae.

Names in different languages

Danish : Gåsemad
German : Ackerschmalwand
English : Thale Cress
Latin : Arabidopsis thaliana
Norwegian : Vårskrinneblom
Swedish : Backtrav
Thale Cress: Seedling
Seedling
Thale Cress: Early stage
Early stage
Thale Cress: Flower
Flower
Thale Cress: Mature plant
Mature plant
Thale Cress: Seeds
Seeds
 
Crop Protection Online is published by Department of Agroecology, Aarhus University and SEGES Innovation.
Informations for which license is not needed may be used with reference of source.

E-mail to planteit@seges.dk