Henry Murphy

Area Technician

Henry has recently joined Japanese knotweed and has over 6 years’ experience in horticulture, gardening and the treatment of invasive weeds and excavations. As an Area Technician Henry’s main responsibility is carrying out herbicide treatments to all invasive weeds covering South London and Outer London areas.

Tony Paterson

Amenity Technician

Tony is highly experienced in amenity weed control. He is the lead quadbike operator on our municipal weed spraying contracts for Local Authorities across the country.

Dean Hudson

Amenity Technician

Dean joined the Amenity team in 2024, bringing with him his herbicide experience in invasive weed control and a background in maintaining parks and gardens.

Mark Bristow

Amenity Team Leader

Mark is highly experienced in invasive weed control. He joined the team in 2024 to head up the Amenity team of quadbike operators on our municipal weed spraying contracts for Local Authorities across the country.

Paul Ceconi

Area Technician

Paul joined Japanese Knotweed Ltd in August 2017. He has over seven years experience of managing non-native invasive species as part of habitat management projects, for both the public and private sector. As an area technician his main responsibility is carrying out herbicide treatments.

Darren Greatbatch

Specialist Advisory Manager (Invasive & Amenity Weeds)

Darren has worked in Amenity and invasive weeds for over 20 years, he conducts invasive weed surveys, provides herbicide recommendations and invasive weed treatment programmes. Darren is a BASIS certified crop advisor in Invasive and Injurious weeds and Hard surfaces. Darren has spent 20 years within Amenity weed control, working mainly for local authorities, and advised on sports and golf venues on weed control and nutrient input.

Rob Lindley

Area Technician

Rob has many years experience in detailed, large scale land surveying and was Chief Surveyor for Ordnance Survey where he developed digital products such as "In-car navigation" (now called Sat Nav) and carried on to become the North Region Survey Manager responsible for the area from the Scottish border down to Peterborough.

Richard Sapford csjk


Richard is an experienced fully qualified CSJK invasive weed surveyor. Based in Middlesex he works in the Surveying and Herbicide Sales team, focusing on London and the South East.

Phil Hodgson

Excavation supervisor

Phil joined in May 2017 and is highly experienced in excavating and spraying invasive weeds. Previously, he served in the Corps of Royal Engineers in the British Army for eight years. He was deployed to Afghanistan, Iraq and Bosnia, specialising in bomb disposal.

Mike godfrey

Excavation supervisor

Mike is responsible for Japanese Knotweed Eradication and Excavation contracts in the South of England including the counties of Bristol, Gloucestershire, Wiltshire, Berkshire, Hampshire and Surrey. He is extremely skilled with using large excavators to extract/remove the roots and rhizomes of knotweed from the contaminated soil. His wealth of knowledge and experience enables him to work on commercial and residential sites.

kieran hampton

Excavation team supervisor

Based in Andover, Kieran supervises excavations in the south of the UK. He was promoted to this position in February 2022 which was a culmination of his development, combined with his hard work, dedication and commitment to the company.

Kaye Lucas csjk


Kaye joined Japanese Knotweed Ltd in June 2017 having worked in invasive weed eradication for several years. She's worked in horticulture and arboriculture from the age of 15 and started working as a Japanese knotweed technician in 2015. Initially, she conducted herbicide treatment visits and moved into supervised surveying in early 2015. She gained the CSJK qualification in 2021.

Hasan Erdinc

Area Technician

Hasan is one of our longest-serving members of staff with a wealth of knowledge and experience in knotweed surveying and treatment services.

Eugene Duffy csjk


Eugene joined Japanese Knotweed Ltd in August 2020 having previously worked in invasive weed treatment. Eugene has a strong background in both Agriculture and the Built Environment with a masters degree in Civil and Architectural Engineering from the University of Bath. Eugene qualified as a Certificated Surveyor in Japanese Knotweed (CSJK) in 2021

David Hilton CSJK


With over 30 years horticultural experience, is NPTC qualified in pesticide application, including PA1, PA6A and PA6AW and is also qualified to City & Guilds Level 5 in Sports Turf and Horticulture. David covers both residential and commercial sites performing Surveys, advising clients on the most efficient remediation techniques, he also carries out herbicide treatments.

Gary Hayes

Operations and Support Operative

Gary is one of our longest-serving members of staff with a wealth of knowledge and experience in invasive weed identification and remediation services. He provides support to our overall Operations team.

John Butcher CSJK

Lead Commercial & Legal Surveyor

With over 35 years’ experience in the horticultural industry, John has been Site Supervisor and Lead Foreman with us for 9 years and Surveyor for 7 years. John conducts commercial site surveys throughout the whole of the UK. He's often one of the key contacts for our commercial excavation clients as his experience allows him to advise on many different aspects of invasive weed remediation.