I specialise in all aspects of invasive plant ecology and management, including survey, identification, mapping, evaluating routes of spread, management (chemical and physical control techniques) and independent audit and appraisal of management actions. With respect to Japanese Knotweed in particular, I have expertise in the areas of specialism outlined above, in addition to assessment of growth and spread with relative age assessment, which can be relevant in establishing liability in civil claims.

I specialise in all aspects of invasive plants, including their ecology, impact, treatment, control and management. This includes surveying, identification, evaluation and mapping. I have substantial experience in the development of appropriate and effective management strategies for invasive plants. I have been working generally with invasive plants since 1983 and specialised in Japanese knotweed from 2005 to the present date. I was the lead author in writing the textbook on invasive bamboos, which was published...

Japanese Knotweed I am one of the country's leading experts on this subject. I have over 40 years' experience of the identification and management of Japanese Knotweed in both the built and natural environment. I have a very unusual skill set. As a professional ecologist I have knowledge of the plant's growth cycle and environmental impact. As a Chartered Surveyor who is an accredited valuer, I can advise on the impact on property value caused by the plant. I was one of the first two people worldwide to become...

Extensive experience in hard landscaping, especially domestic sites • Specialising in paving, walling and construction, including decking and artificial grass • Also Japanese Knotweed and water issues, including site flooding and drainage

I have been eradicating Japanese Knotweed for over 20 years and was one of the first five people in the UK to become a PCA Certified Surveyor . Therefore, I have the experience needed to deal with any breakout of the invasive weed. I have over 25 years of horticultural experience and over 10 years' experience completing arboricultural surveys, with all reports being completed to BS5837:2012 standards.

Residential and commercial valuations • Dilapidations • Building surveys • Leasehold extensions and enfranchisement • Japanese Knotweed diminution of value