Our Standards

INNSA expects all Members to work to our Technical Standards. These are available to view on our members’ portal or will be sent to you once you become full and accredited members. Email [email protected] for more details.

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Our standards cover the following areas:

INNSA Standard Invasive Species Identification

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INNSA Standard Herbicide Spraying of Japanese Knotweed

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INNSA Standard Stem Injection of Japanese Knotweed

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INNSA Standard Installation of Root Barrier for Japanese Knotweed

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INNSA Standard Creating a Waste Management Area for Japanese Knotweedd

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INNSA Standard Burial of Japanese Knotweed

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INNSA Standard Dig and Dump for Japanese Knotweed

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INNSA Standard Removal of Japanese Knotweed from Soil or Contaminated Material

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Case Studies

River Douglas, Wigan

River Douglas, Wigan Treatment of large amounts of Japanese...
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Narvick Way, North Tyneside

Narvick Way, North Tyneside Excavation from construction area, with...
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Lanark Way, Belfast

Lanark Way, Belfast Site survey and treatment plan for...
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Latest News

Ignorance *IS* A Defence

In a recent case heard at County Court in London,...
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Auditing – What’s the Right Balance?

For many people, the word “audit” inspires a sense of...
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Government Guidance on Knotweed

While “enjoying” the current summer hiatus in government and given...
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