Grey mouse-ear

Grey mouse-ear (Cerastium brachypetalum) is a small annual weed belonging to the Caryophyllaceae family. It is recognized as a persistent weed in agricultural lands, particularly in regions with sandy or dry soil compositions, affecting both winter crops and horticultural plantations.

The plant typically thrives in disturbed habitats and open fields. It is widely distributed across Europe and parts of Asia, where it exploits vacant spaces in crop rows. As an opportunistic species, it can quickly establish populations, making it a recurring challenge for farmers during the spring and autumn seasons.

The biology of this species is characterized by high seed production and a flexible germination cycle. The plant features glandular-hairy stems and white, notched petals. Its ability to germinate over a wide temperature range allows it to emerge before most crops, giving it a head start in the competition for soil nutrients and solar energy.

The economic impact of the grey mouse-ear is tied to its role as a crop competitor. In dense infestations, it reduces light penetration for small crop seedlings and depletes soil moisture. Furthermore, the presence of these weeds can harbor pests or serve as an alternative host for certain plant diseases, complicating field management.

Integrated weed management is essential for controlling this species:

• Mechanical removal through tillage or hoeing in the early growth stages.
• Chemical control using targeted pre-emergence or post-emergence herbicides.
• Strategic crop rotation to disrupt the life cycle of the weed.
• Maintaining healthy, vigorous crop stands to naturally suppress weed germination and growth.