Given the essential role that primary producers play in aquatic ecosystems, it is imperative that the potential risk of pesticides to the structure and functioning of aquatic plants is adequately assessed. An integration of regulatory and research information from key specialists in the area of environmental regulation, Aquatic Macrophyte Risk Asse

Lorraine Maltby, Dave Arnold, Gertie Arts, Jo Davies, Fred Keimbach, Christina Pickl, Veronique Poulsen

Introduction and Background. Guidance, Recommendations, and Proposed Decision Scheme for Additional Aquatic Macrophyte Tests. Regulatory Issues Concerning Effects of Pesticides on Aquatic Macrophytes. Characterizing and Assessing Risk using Case Studies. Reports of Workgroups and Follow-up Investigations. Keynote Presentations. References. Appendices.