Allelopathy of the invasive weed conyza albida with cool and warm season turf grasses

摘要

Weeds are considered opportunistic plants and they invade man-made environments such as urban turfgrass sites. Weeds are most commonly found in turfgrasses subjected to wear and compaction that is provoked by man and/or vehicular traffic, or in casesthat the turf is weakened either by adverse environmental conditions, or thatch accumulation, or diseases, or pests to the extent that the turf cannot compete for nutrients, water, or light with the invading weed species.