Mark Bowsher-Gibbs

SAC Consulting

Projects

Forestry, Horticulture, Agriculture, Environment
A targeted analysis of the impact of insecticide withdrawals in Scotland, in the context of alternative control options.
Project Lead: Sarah Wynn
Insecticides are commonly used in Scottish agricultural, horticultural, forestry production, and for amenity and natural environment management purposes. Over the last 10 years, approximately 50% of UK insecticide active substances have been withdrawn due to increasing concern over human health and environmental impacts. Some of these losses will be mitigated by using alternatives but their practicality and cost under Scottish conditions is unknown. Given the likelihood that regulatory restrictions on pesticide usage will not be reduced, widespread adoption of IPM might offer a way to reduce reliance upon at risk pesticides.

This project will deliver an expert review of available literature to identify the insecticides of concern to Scotland and their association with current practices. This targeted review will identify available alternatives and their efficacy, and any interdependencies and evidence gaps will be identified. A key outcome of this call will be case studies of the alternative methods adopted by stakeholders to mitigate the impact of insecticide withdrawal, combined with desk-based and expert opinion and analysis on their efficacy, practicality and cost.
Forestry, Horticulture, Agriculture, Environment
Economic impact of pesticide withdrawals to Scotland, with case studies
Project Lead: Fiona Burnett
The use of pesticides to control plant pests and diseases is a key management intervention across plant health sectors, particularly in agriculture, horticulture, and commercial forestry. Pesticide withdrawals through legislation, coupled with increased insensitivity, have emerged as key concerns for Scottish plant health stakeholders. To meet this stakeholder need, the PHC commissioned a project to quantify the impacts on Scottish plant health arising from pesticide withdrawals and set this in the context and time frame of alternative management tools (PHC2018/15: Potential Impacts Arising from Pesticide Withdrawals to Scotland’s Plant Health). The key outcomes from this project are that for all the plant health sectors (as above and including natural environment) the withdrawal of key substances will have a significant impact on the ability to manage pests, weeds, and diseases effectively and economically. For soft fruit and field vegetables in particular, production will be significantly affected and may become uneconomic. This project builds on data and results from this previous PHC project and will use case studies to understand likely impacts and their mitigation.

Publications

Horticulture, Agriculture | Final Report and Policy Document

Understanding crop producers’ perceptions around crop health decision making and the impact of that on key metrics such as pesticide usage

Authors: Henry Creissen, Hernan Degiovanni, Kyran Maloney, Philip Burgess, Ali Karley, Christophe Lacomme, Phillippa Dodds, Miryana McKay, Mark Bowsher-Gibbs, Andy Evans
July 2024

Increased uptake of Integrated Pest Management (IPM) measures on Scottish farms will be key in improving resilience against pests, weeds, and diseases, and maintaining or improving crop yields and farm profitability, whilst reducing environmental impact and reliance on pesticides. The aim of this project therefore was to improve the flow of IPM knowledge and its uptake and identify the drivers and barriers to further adoption of IPM practices for different decision makers and for different farm types.

Forestry, Horticulture, Agriculture, Environment | Final Report and Policy Document

A targeted analysis of the impact of insecticide withdrawals in Scotland, in the context of alternative control options

Authors: Jim Dimmock, Mark Bowsher-Gibbs, Harvey Blackmore, Steven Thomson, Katrina Dainton
July 2023

Insecticides are commonly used in Scottish agricultural, horticultural, forestry production, and for amenity and natural environment management purposes.  Over the last 10 years, approximately 50% of UK insecticide active substances have been withdrawn due to increasing concern over human health and environmental impacts.  Some of these losses will be mitigated by using alternatives but their practicality and cost under Scottish conditions is unknown.  This project analysed current crop production patterns and insecticide use in combination with how likely different insecticides are to be withdrawn and provided stakeholder views on the impacts of any such losses on their industry, including other control methods that may be adopted.

Forestry, Horticulture, Agriculture, Environment | Final Report and Policy Document

PHC2020/09: Economic Impact of Pesticide Withdrawals to Scotland, with Case Studies

Authors: Fiona Burnett, Mark Bowsher-Gibbs, Donald Dunbar
March 2021

Chemical forms of plant protection are widely used in Scottish agricultural, horticultural and forestry production plus for amenity and natural environment management purposes.  The availability and use of active substances in pesticides are closely regulated and increasing concern over human health and environmental impacts has led to a greater likelihood that some existing approvals will be withdrawn and/or that approvals for new products will not be granted.  Potential impacts from withdrawal of these pesticides are of policy interest and this summary report builds on the data and results from project PHC2018/15 (Potential impacts arising from pesticide withdrawals to Scotland’s plant health) and uses case studies to understand the likely magnitude and distribution of potential impacts and how they may be mitigated.