Rapid determination of herbicide resistance pattern in blackgrass
A Letouzé, A Matéjicek, A Henry and J Gasquez, INRA, Dijon, France

Potential use of oxadiargyl / propanil mixture for control of propanil resistant Echinochloa crus-galli in rice
T K Gitsopoulos and R J Froud-Williams, University of Reading, UK
C R Leake, Rhône-Poulenc Agriculture Ltd, Ongar, UK
M Montagnon, Rhône-Poulenc Agrochimie, Lyon, France

An investigation of the detoxification of active oxygen species in blackgrass (Alopecurus myosuroides) plants susceptible and resistant to herbicides
L J Milner, J L Belfield, J P H Reade and A H Cobb, Harper Adams University College, Newport, UK

Extent of resistance of ACCase inhibiting herbicides in UK populations of wild oat (Avena sp.) and Italian ryegrass (Lolium multiflorum)
M Greenwood, J Gemmell, W Sinclair and G Marshall, SAC, Auchincruive, UK A M Mortimer and P D Putwain, University of Liverpool, UK

Resistance to imazapyr in Conyza albida in Spain
M D Osuna, J Gonzalez and R De Prado, Universidad de Córdoba, Spain

An application of diversity indices to soil weed seedbank data from a long-term rotational ploughing experiment
R G Masey, University of Reading, UK
K A Maulden, ADAS Boxworth, Cambridge, UK

Seed bank depletion of wild oat and cleavers in integrated arable farming systems
S J Watson, A J Murdoch and J R Park, University of Reading, UK

Laboratory studies of weed seed predation by carabid beetles
J A Tooley and R J Froud-Williams, University of Reading, UK
N D Boatman, Allerton Research and Educational Trust, Loddington, UK
J M Holland, Game Conservancy Trust, Fordingbridge, UK

Implications of seed dormancy for control of Striga hermonthica in Ghana
I K Dzomeku and A J Murdoch, University of Reading, UK

Integration of socio-economically appropriate management strategies for Striga hermonthica in The Gambia
E M Kunjo and A J Murdoch, University of Reading, UK

Integration of reduced dose rates of fluazifop-butyl or sethoxydim with hand-hoe weeding for the control of Digitaria abyssinica and other weed species
R Kabanyoro and R M Wilkins, Newcastle University, UK

Studies on the allelopathic potential of various cereal cultivars on selected test species
V Kati and R J Froud-Williams, University of Reading, UK

Comparative phytotoxicity of pyrenophorin and pyrenophorol isolated from a Drechslera avenae pathotype
M A Kastanias and M Chrysayi-Tokousbalides, Agricultural University of Athens, Greece

Effects of cultivar and crop density on herbicide sensitivity of winter wheat
N E Korres and R J Froud-Williams, University of Reading, UK

Effects of weeds and chemical weed control on yield and breadmaking quality of winter wheat
N A Awan, A J Murdoch and M J Gooding, University of Reading, UK

A new paradigm on weed economic threshold
R A Vidal, V Spader, A Merotto Jr and N G Fleck, UFRGS, Porto Alegre, Brazil