Weed biology is discussed under the headings: definition of weeds through crop damage;
aims of weed control; development of weed flora (pre-adaptation, evolution and alien …

Herbicide resistant weed populations evolve in response to the intense selection pressure
imposed by herbicides targeting specific physiological or biochemical processes. Factors …

Conyza bonariensis is distributed widely throughout the warmer regions of the world
(Terzioğlu and Anşin 2001, Sida 2003). The broad geographical distribution of C …

Avena fatua (wild oat) populations with resistance (R) to one or more herbicides have been
described in numerous cropping systems worldwide. We previously reported that the R3 and …

Field studies were carried out on fine sandy loam soils in California, USA, on the impact of
different crops (maize, sorghum, Phaseolus vulgaris, tomatoes and sugarbeet) on seed …

Plant Protection Quarterly Vol. 22 (3) 2007 83 being flattened and oblong in shape; papery
and two-winged, 1–1.8 cm long, 4.2–5.8 mm wide, the wings membranous, not sharply …

Résumé: Zusammenfassung An infestation of Avena fatua in two successive spring barley
crops was monitored from March 1972 to June 1973. The numbers of viable seeds on the …

Biological processes and characteristics are important factors in the introduction, spread,
and establishment of invasive weeds. These biological traits include reproduction, dispersal …

Bringing together reasons for why and where weeds occur and the ecological importance of
weed management, this updated edition (previously entitled" Weed Ecology") provides an in …