Five-year plan to eradicate Japanese knotweed

Parish council hires specialist company


Photograph of Japanese knotweed in the Gobions Open Space woods. Image by North Mymms News released under Creative Commons BY-NC-SA 4.0
Japanese knotweed in the Gobions Open Space woods
Image by North Mymms News released under Creative Commons BY-NC-SA 4.0

North Mymms Parish Council has agreed to a treatment plan for dealing with Japanese knotweed in Gobions Open Space. Work will begin in the summer. A second thicket of the invasive shrub at the North Mymms war memorial has been reported to Hertfordshire Highways.

Photograph of Japanese knotweed in the Gobions Open Space woods Image by North Mymms News released under Creative Commons BY-NC-SA 4.0
Japanese knotweed in the Gobions Open Space woods
Image by North Mymms News released under Creative Commons BY-NC-SA 4.0

Japanese knotweed is a non-native perennial, which, if untreated, grows stronger year-by-year. It's fast-growing and has underground stems called rhizomes which spread through the soil producing strong clumps or thickets. The stems are tall and grow in dense patches. If it isn't dealt with it's capable of rapid growth. It dies back in the winter, but fresh growth appears in the spring and summer resulting in the weed spreading.

A suspected sighting of the plant at the rear of the gardens on the south side of The Grove, Brookmans Park, was raised at various North Mymms Parish Council (NMPC) meetings earlier this year and reported on this site.

According to council minutes for March and April - which have just been published online (22/05/2018) - it's been confirmed that the plant in Gobions Open Space is Japanese knotweed, and NMPC has decided to take action. The extracts from minutes taken at the relevant meetings read as follows:
Extract from Council Minutes of 28/2/2018 – Item 169 Japanese Knotweed
A proposal/treatment plan for the treatment of knotweed at Gobions Open Space was discussed. It was proposed by Councillor Teresa Travell and seconded by Councillor Stephen Boulton that NMPC accept the 5 year treatment plan payable in instalments over a period of 4 years.
Action : Clerk to contact Japanese Knotweed Company and accept their treatment plan proposal.
Extract from Council Minutes of 28/3/2018 – “Review of Action Points from 28/2/2018” Item 197 Japanese Knotweed
Update: Clerk has contacted Japanese Knotweed Company to accept their treatment plan proposal payable over a period of 4 years which has been processed.
Extract from Amenities Committee Minutes 11/4/2018 – “Follow Up Action Points” Item 66 Japanese Knotweed Locations and Eradication
Update: Clerk has arranged a free survey at Gobions and it has been confirmed it is Japanese knotweed. A quote from Japanese Knotweed Company has been accepted and the first instalment paid for the treatment plan. Work to commence during summer.
Clerk has informed Herts County Council, Highways of possible knotweed presence at the War Memorial.
Photograph of Japanese knotweed in at the North Mymms war memorial Image by North Mymms News released under Creative Commons BY-NC-SA 4.0
Japanese knotweed at the North Mymms war memorial
Image by North Mymms News released under Creative Commons BY-NC-SA 4.0

The instance of Japanese knotweed at the North Mymms war memorial off Tollgate Road has been reported to Hertfordshire Highways.


Update Wednesday May 23, 2018: North Mymms Parish Council has confirmed that the possible presence of Japanese knotweed at the North Mymms war memorial on Tollgate Road was reported to Hertfordshire Highways on March 7, 2018, and an acknowledgement received a day later with allocated reference number and prioritisation timescales.



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1 comment:

  1. This is good news indeed and lets hope this invasive weed can be eradicated from Gobions adjacent to my garden, as elsewhere. I am looking forward to receiving any comments on the related subject of "Fly tipping in Gobions wood"! GP

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