International Invasive Weed Conference

‘Identification, Assessment and Response’

22nd November 2018

The Slate, University of Warwick, Coventry, CV4 7SH

The fourth annual PCA Invasive Weed Control Group conference will take place at The Slate, University of Warwick, Coventry.

Delegates will comprise PCA members, non-members, contractors, surveyors, lawyers, public authorities and academics, receiving valuable insights across a range of topics from a packed programme of speakers.

Booking Form: PCA Members Booking form: Non PCA Members

This year, the conference will include speakers on topics relating to:


Session 1 – Identification

Session Chair: Niall Moore, GB Non-Native Species Secretariat

a) Horizon scanning: Identifying the water industry’s worst weeds – Ben Aston, Yorkshire Water
b) Plant identification: The first step – Laura Jones, AECOM
c) What plants are a current issue in countries across the Channel in the Netherlands, Belgium and France that could become a problem quite quickly in the UK? – Dr Johan van Valkenburg, National Plant Protection Organisation
Q&A Session


Session 2 – Assessment

Session Chair: Trevor Renals, Environment Agency (EA)

a) Under the Radar: Buddleia and Bamboo – Jim Glaister, The Knotweed Company
b) Risk Assessment at the site level – Peter Watson, RPS Group
c) Mortgages and finance – Robert Stevens, Nationwide
d) Health and Safety in invasive weed management: Achieving best practice – Colin Liptrot, Environment Agency
e) 5 min recap on his presentation last year on spray nozzles – Tom Robinson, Robinson Sprays
Q&A Session


Session 3 – Response 

Session Chair: Dick Shaw, CABI

a) Treating Buddleia, Bamboo and Giant Hogweed – Jim Glaister, The Knotweed Company
b) The Court of Appeal’s Take on Matters – Rodger Burnett, Charles Lyndon
c) Land Remediation Tax Relief and Japanese Knotweed – Alun Oliver, E3 Consulting
d) Update – Barrie Hunt, Monsanto
Q&A Session


Panel Debate

The day will finish with a Panel Debate led by PCA Chief Executive, Steve Hodgson:

Panel Debate: ‘Local Authorities and Invasive Weeds’

Panellists: Jon Best – London Borough of Southwark, Niall Moore – Non-Native Species Secretariat and Katy Owen – Norfolk County Council

‘A Penny for Your Thoughts’ – Professor Max Wade, AECOM


Delegate prices

PCA Members
£100 +VAT

£150 +VAT

There will also be a Pre-Conference Dinner on the evening of 21st November and will cost £32.50 +VAT per head.


Book your place today

Simply complete the relevant form below and return your form by e-mail to ‘’ or by post to the PCA offices in Huntingdon.

Booking Form: PCA Members Booking form: Non PCA Members



Review of 2017 Conference


Watch the video filmed at our 2016 Invasive Weed Conference