Danger cockleburs xanthium spp. And sugar beet

Abstract

The paper describes the biological properties and agronomic efforts of herbicide weed management possibilities of important cocklebur species found in Slovakia. These include the common cocklebur Xanthium strumarium L. as well as hunter burr Xanthium riparium Itz. et Her. em. Lasch. both are widely spread species occurring mainly on arable land especially in row crops; the third one prickly burweed Xanthium spinosum L. is still rare and mainly occures in meadows and pastures all three are poisonout species with an increasing importance mostly in southern regions of the country where sugar beet is planted as well.