Woolly cupgrass (Eriochloa villosa /Thunb./ Kunth), a recently occured invasive weed in Trans-Tisza Region and a trial for control in maize

Abstract

To the effective control of invasive weeds are essential to prevent establish, if has already happened obstacle to massive accumulation, and promoting the efficient and rapid eradication, if it is possible. The Woolly cupgrass (Eriochloa villosa /Thunb./ Kunth) belongs to weeds which “hard to control” especially in corn. One of the difficulties of effective control is the prolonged emergence causing avoidance of several individuals the contact with pre-emergent herbicides. Another problem arises due to the intensive use of post-emergence herbicide products with short duration of action. To optimalize of timing of treatment is essential for successful control of later emerging weeds. The recently established Woolly cupgrass in Hungary shows resistance or reduced susceptibility to substantial portion of herbicides used in corn. The data collected from small-plot trials demonstrates that application of sulfonylurea or selective monoctyledonous herbicides can be effective against the Woolly cupgrass.

First Report of Benzoxazinoid Compounds in Woolly Cupgrass (Eriochloa villosa Thunb. Kunth), an Invasive Plant

“…The problems in controlling this annual weed are due to its germination characteristics; seeds emerge from deeper soil depths continuously during the growing season [1]. In addition, woolly cupgrass is less susceptible to certain herbicides that are often used against other annual grasses that infest corn fields [4].…”

First Report on the Occurrence of Benzoxazinoids in an Invasive Weed Plant, Woolly Cupgrass (Eriochloa villosa (Thunb./Kunth)

“…The problems of controlling this annual weed originating from its seed germination properties, namely that the seeds emerge from deeper soil layers and long-continued time of the growing season [1]. In addition the plants are less susceptible for some herbicides used against other annual grass weeds in corn [4].…”