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The 1999 Brighton Conference
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Weeds

WEDNESDAY 17 NOVEMBER

PROGRAMME

SESSION 7C: HERBICIDES: THEIR FATE, PERSISTENCE, DISTRIBUTION AND ECOTOXICOLOGICAL IMPACT


Session Organiser:
Professor C Hall (University of Guelph, Canada)

Herbicide surface runoff and leaching from a cotton-rye cropping system under contrasting tillage and nutrient management levels
W K Vencill, D E Radcliffe, M L Cabrera and L L Lohr, University of Georgia, Athens, USA
D Endale, J L Steiner and H H Schomberg, USDA-ARS, Watkinsville, USA

Factors affecting the loss of six herbicides from hard surfaces
A J Shepherd and A I J Heather, Soil Survey and Land Research Centre, Derby, UK

Fate and behaviour of pesticides in farm ditches
R J Williams, C White and S Dreymann, Institute of Hydrology, Wallingford, UK
V Gouy, C Garon-Boucher and C Souiller, Cemagref, Lyon, France

Point-source pesticide contamination: quantification and practical solutions
S Higginbotham, R L Jones and E Gatzweiler, Rhône-Poulenc Agrochemie, Lyon, France
P J Mason, Coventry University, UK

Solid urban waste residue amendment as affecting simazine and 2,4-D leaching in soils
L Cox, J Cornejo, R Celis and M C Hermosin, Instituto de Recursos Naturales y Agrobiologia de Sevilla, Spain

 

 Influence of soil pH-sorption interactions on imazamox carryover
G A Bresnahan and A G Dexter, North Dakota State University, Fargo, USA
W C Koskinen, USDA-ARS, St Paul, USA
W E Lueschen, University of Minnesota, St Paul, USA

Organoclays and organohydrotalcites as sorbents for polar pesticides
R Celis, M C Hermosín and J Cornejo, Instituto de Recursos Naturales y Agrobiologia de Sevilla, Spain
W C Koskinen, USDA-ARS, St Paul, USA

Influence of environmental conditions and soybean agrotechniques on detoxification of herbicides in soil
A A Peneva, Plant Protection Institute, Kostinbrod, Bulgaria

A rapid, sensitive bioassay method for sulfonylurea herbicides
E Hernández-Sevillano, M Villarroya, M C Chueca, J L Alonso-Prados and J M García-Baudín, Área Protección Vegetal INIA, Madrid, Spain

Toxicity tests for assessment of pesticide effects on aquatic plants
J Davies, H F Pitchford, J R Newman and M P Greaves, IACR-Long Ashton, Bristol, UK

The use and abuse of ready biodegradability tests
W R Jenkins and A Crowe, Huntingdon Life Sciences, Eye, UK
T Ehrlich, Makhteshim Chemical Works, Beer-Sheeva, Israel

Effect of two adjuvant types on the distribution of 14C-glyphosate applied to model weed species
S D Sharma and M Singh, University of Florida’s Citrus Research and Education Centre, Lake Alfred, USA

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