Crop Protection Online > Pests - Weed biology<br> <sub>Agro-region: Denmark</sub> - Stellaria media ALS-res
Crop Protection Online    
2.12 2024 undefined

Weed biology
Agro-region: Denmark

Stellaria media ALS-res Previous page Next page

Go to identification key for weeds

Can be mistaken for

Cerastium fontanum ssp., which has hairy true leaves.
Solanum nigrum L., which has hairy dicotyledon leaves and true leaves.
Stellaria media that is morphologically identical but not resistant to ALS-herbicides
Stellaria media SU-resthat is morphologically identical but only resistant to SU-herbicides

Resistance to herbicides

There have been significant populations of this weed in Denmark, which requires special considerations in the control. Read more here.

Characteristics

Cotyledons
Oblong, oval with entire leaf margins. Stalked. The surface is smooth (a few hairs near the stalk). Length approx. 5-7 mm.

True leaves
Circular to egg-shaped with entire leaf margins. Stalked. The surface is smooth (hairy stalk). Length approx. 6 mm.

Mature plant
Common Chickweed is a low-growing plant with 5-20 cm long, trailing stems. One row of hairs along the stems. The diameter of the flower is approx. 4-5 mm. Seed production: Up to approx. 15,000 seeds per plant.

Seed
Almost circular and somewhat flattened. The surface is finely nubbly with the burls in curving rows. One notch in the peripheral edge. Thousand grain weight approx. 0.6 g

Biology

Propagation and dispersal
Only through seeds.

Habit
Summer and winter annual

Importance

The species is the most common weed in Denmark. It is found in all types of crops. In case of dense populations where the plant forms a carpet in the crop, Common Chickweed can cause quite severe losses in all types of crops. In seed fields of White Clovere and small-seed grasses Common Chickweed is an injurious weed because it is difficult to separate the seeds.

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

Taxonomy

Caryophyllaceae.

Names in different languages

Danish : Fuglegræs ALS-res
German : Vogelmiere ALS-res
English : Common Chickweed ALS-res
Latin : Stellaria media ALS-res
Norwegian : Vassarve ALS-res
Swedish : Våtarv ALS-res

Stellaria media ALS-res: Seedling
Seedling
Stellaria media ALS-res: Early stage
Early stage
Stellaria media ALS-res: Flower
Flower
Stellaria media ALS-res: Mature plant
Mature plant
Stellaria media ALS-res: 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