Skip to Content

Resource hub

Theory of Change for Controlling Oak Processionary Moth Using Nature-Based Solutions 2022


Oak processionary moth (OPM) is an invasive pest posing a fairly low but not insignificant risk to human health and oak trees. There is therefore a need for control, but as the impacts are fairly minor there is also a clear need for any control implemented to be associated with minimal risks and non-target effects.

Nature-based solutions have potential to control (reduce and maintain low levels of) populations of OPM and reduce its spread. Whilst there is little direct evidence of nature-based solutions controlling OPM populations, the indirect evidence, strong co-benefits, low risks and relatively low costs of their use, support their implementation while further data and evidence are gathered.

This theory of change explores a series of potential nature-based solutions, detailing the evidence and wider context associated with each intermediate outcome. It was put together following an assessment of the approaches and experiences of deploying nature-based solutions to control OPM in the UK and the Netherlands (Deasey et al. 2022).

This resource may not be fully accessible for all users. If you need a copy in a different or more accessible format, please get in touch.

Resource type Publication

Topic category Environment

Reference date 2022·11·01

Harris, M., Deasey, A., Cheffings, C. and Hoskins, H. 2022. Theory of Change for Controlling Oak Processionary Moth Using Nature-Based Solutions. JNCC Report No. 724 (Guidance report), JNCC, Peterborough, ISSN 0963-8091.

This report was produced by JNCC for Defra through the Future Proofing Plant Health Project.

Responsible organisation
Communications, JNCC publisher

Limitations on public access No limitations

Use constraints Available under the Open Government Licence 3.0

Metadata date 2022·11·21

Metadata point of contact
Communications, JNCC

Back to top