Austrian chamomile

Austrian chamomile (lat. Cota austriaca), belonging to the Asteraceae family, is a herbaceous annual or biennial weed. It is frequently observed as an invasive plant in disturbed habitats and agricultural landscapes, showing high adaptability and a strong potential to outcompete crops for essential resources.

The plant is commonly found in cereal fields, row crops, pastures, and along roadsides. It thrives in open, sunny environments where soil disturbance occurs, making it a persistent presence in agricultural systems that do not employ dense crop rotation or cover cropping strategies.

Biologically, the plant is characterized by a high seed count per individual and the ability to germinate throughout the spring and summer. The stem is erect, branched, and pubescent, which helps the plant reduce transpiration. These traits ensure that even under dry conditions, the plant remains competitive and continues its growth cycle until seed maturation.

The weed causes significant damage by competing for nitrogen, moisture, and sunlight. In fields with high infestation rates, crop yield can be significantly reduced, and the presence of dense weed clusters makes mechanical harvesting difficult. Furthermore, its presence can decrease the overall quality of the grain harvest due to contamination.

Effective management requires a combined approach. Preventive measures include the use of clean, certified seeds and strict field sanitation. Agrotechnical methods such as deep plowing and timely inter-row cultivation are crucial for reducing the seed bank in the soil. Chemical control involves the application of appropriate herbicides during the early growth stages of the crop to prevent the weed from establishing a competitive advantage.