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Managing pesticide risks to drinking water:
future challenges and new opportunities
9th November 2016at WRc, Swindon
Workshop Output
ContactAndrew Davey, Senior Consultant, WRc plcEmail: [email protected] • Tel: +44 (0)1793 865023 • www.wrcplc.co.uk • @wrcplc
Positive actions
• Support R&D• Education to demonstrate
benefits and share knowledge across farming community
• Subsidies and incentives to promote uptake
• Plan for extremes and uncertainty
• Improve resilience (e.g. increase bankside storage)
• Improve monitoring and forecasting
• Develop products less susceptible to runoff
• Identify and target essential uses of glyphosate
• Promote greater use of Integrated Pest and Farm Management
• Raise awareness of possible consequences for water quality
• Lobby for more risk-based regulation
• Assess possible consequences of shifts to alternative products
• Offer incentives for agreement
• Support through training events
• Dedicated monitoring to assess benefits
• More measurable/ intelligent water management
• Continuous source management and monitoring
Scenario
Increased adoption of precision farming technologies
More volatile climate
Glyphosate is banned
Abolition of farming subsidies
Tighter statutory limits on pesticide use
Greater use of catchment agreements
Increasing water scarcity
Impacts
Reduced pesticide use reduced risk to drinking water
Greater year to year variation in pest pressure less predictable patterns of pesticide use increased risk to drinking water
Increased use of alternative actives, which may be more toxic and difficult to remove from water increased risk to drinking water, increased treatment cost
Intensification of crop production greater pesticide use increased risk to drinking water.Bigger farms block cropping more clustered pesticide use.
Reduction of pesticide use reduced risk to drinking water
Improved storage, use and handling of pesticides reduced risk to drinking water
Less flexibility over abstraction, water trading reduced ability to mitigate through abstraction management and blending increased risk to drinking water.
Uncertainties
• Cost of technology• Rate of technological
development and uptake• Behavioural and financial
barriers to uptake
• Extent and speed of climate change
• Where and when extreme weather events will happen
• Existing level of resilience
• Influence of social pressure on re-approval decision
• Changes in UK authorisation process post-Brexit
• What alternative actives and practices would be used
• The future direction of government policy post Brexit
• Farm economics
• May force use of less desirable products
• Increased risk of pesticide resistance emerging?
• Level of farmer engagement and participation
• Enforceability of agreements
• How to build resilience in water quality
• Quality/quantity of alternative water sources
• Timing and extent of water transfers
Future Scenarios
Factors influencing pesticide risks to drinking water
Behavioural/OperationalRegulation and PolicyEconomicTechnologyEnvironmental
USE OF NON-CHEMICAL CONTROLS
LAND USE/CROPPING PATTERNSPEST PRESSURE
PESTICIDE USAGE
PESTICIDES IN RAW WATER
PESTICIDES IN DRINKING WATER
PESTICIDE PRODUCTS
Education/Training
National Regulatory
Regime
EU Regulatory Regime
Pesticide Prices
Water Treatment
Treatment Processes
Energy and Chemical Prices
AbstractionManagement
Water Resources Availability
Blending
Equipment
Information
StewardshipSchemes
Non-chemicalTechnologies
Catchment Management
Activities
Product Development
Costs
Farming Practices
Agronomy Advice
Farm Assurance Schemes
Crop Varieties
Plant Breeding GMO Regulations
Climate
Soil Type
Market Prices
ProductFormulation
PesticideResistance
Agri-environment schemes
DomesticDemand
Population
InternationalProduction
RegulatoryRestrictions
ApplicationTechnology
Managing pesticide risks to drinking water:
future challenges and new opportunities
9th November 2016at WRc, Swindon
Workshop Output
ContactAndrew Davey, Senior Consultant, WRc plcEmail: [email protected] • Tel: +44 (0)1793 865023 • www.wrcplc.co.uk • @wrcplc
Positive actions
• Support R&D• Education to demonstrate
benefits and share knowledge across farming community
• Subsidies and incentives to promote uptake
• Plan for extremes and uncertainty
• Improve resilience (e.g. increase bankside storage)
• Improve monitoring and forecasting
• Develop products less susceptible to runoff
• Identify and target essential uses of glyphosate
• Promote greater use of Integrated Pest and Farm Management
• Raise awareness of possible consequences for water quality
• Lobby for more risk-based regulation
• Assess possible consequences of shifts to alternative products
• Offer incentives for agreement
• Support through training events
• Dedicated monitoring to assess benefits
• More measurable/ intelligent water management
• Continuous source management and monitoring
Scenario
Increased adoption of precision farming technologies
More volatile climate
Glyphosate is banned
Abolition of farming subsidies
Tighter statutory limits on pesticide use
Greater use of catchment agreements
Increasing water scarcity
Impacts
Reduced pesticide use reduced risk to drinking water
Greater year to year variation in pest pressure less predictable patterns of pesticide use increased risk to drinking water
Increased use of alternative actives, which may be more toxic and difficult to remove from water increased risk to drinking water, increased treatment cost
Intensification of crop production greater pesticide use increased risk to drinking water.Bigger farms block cropping more clustered pesticide use.
Reduction of pesticide use reduced risk to drinking water
Improved storage, use and handling of pesticides reduced risk to drinking water
Less flexibility over abstraction, water trading reduced ability to mitigate through abstraction management and blending increased risk to drinking water.
Uncertainties
• Cost of technology• Rate of technological
development and uptake• Behavioural and financial
barriers to uptake
• Extent and speed of climate change
• Where and when extreme weather events will happen
• Existing level of resilience
• Influence of social pressure on re-approval decision
• Changes in UK authorisation process post-Brexit
• What alternative actives and practices would be used
• The future direction of government policy post Brexit
• Farm economics
• May force use of less desirable products
• Increased risk of pesticide resistance emerging?
• Level of farmer engagement and participation
• Enforceability of agreements
• How to build resilience in water quality
• Quality/quantity of alternative water sources
• Timing and extent of water transfers
Future Scenarios