Japanese Knotweed

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HHH

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Japanese Knotweed
« on: June 06, 2019, 11:49 »
I hope this is the right place for this query. On our council-managed allotment site a ditch along one side is infested with Japanese Knotweed. The council grounds team do control it and treat it every year, but only in the autumn. This seems counter-intuitive: surely the right time to do this is the spring when it starts growing. They say they have taken advice and it is the best time of year for it.

Do others here have this problem and what do their council or management committee do - and when?


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adri

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Re: Japanese Knotweed
« Reply #1 on: June 06, 2019, 14:35 »
Best time is when it's in flower.  High strength glyphosate is what I've been using for around 4 years now and it's almost eradicated.  Tough plant.
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sospan

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Re: Japanese Knotweed
« Reply #2 on: June 09, 2019, 18:51 »
I dread knotweed coming into any property especially an allotment or agricultural land.

I can see a time when they will put a prohibition notice in place stopping people from removing produce from a cultivation site where knotweed is present.

I can also see councils exploiting this as a means to close down allotment sites to save costs on treatment or worse still retake the land for other purposes.



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