CDI Olfacta Ltd

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CDI Olfacta Ltd Japanese knotweed risk assessment and site inspections across Ireland. Fast, professional reports to support property sales and purchases.

Message us to book an assessment.

02/11/2026

BEFORE YOU MOVE THE SOIL, KNOW WHAT MAY BE IN IT.

For farmers, large landowners, local authorities and quarry operators, moving soil from one part of a property to another can seem routine.

Japanese knotweed changes that calculation.

Small rhizome fragments can potentially establish new growth if contaminated material is disturbed and relocated.

CDI Olfacta uses trained detection dogs to investigate ground and soil for Japanese knotweed scent — including areas where there may be little or nothing useful to see above ground.

Useful before excavation, soil movement, infrastructure works or changes in land use.

Early information. Better decisions.

02/11/2026

BIG SITES. HIDDEN RISKS.

Wind farms. Solar arrays. Data centres. Utility corridors. Roads and major development sites.

These projects can involve significant excavation and movement of soil — and Japanese knotweed isn’t always obvious above ground.

CDI Olfacta’s detection dogs are trained to search for the scent associated with Japanese knotweed below the surface and in areas where visual inspection alone may not tell the full story.

That can include ground beneath vegetation, disturbed areas, stockpiled soil and locations where historic growth is suspected.

Finding the risk earlier can help teams make better decisions before earthworks progress.

02/11/2026

TOPSOIL CAN MOVE MORE THAN SOIL.

Japanese knotweed doesn’t need a visible plant to create a problem.

Rhizome fragments can be moved in topsoil during excavation, site clearance, landscaping and groundworks — potentially transferring contamination from one area to another.

CDI Olfacta provides specialist canine screening of topsoil and ground for Japanese knotweed scent.

For developers, contractors, quarry operators and landowners, screening can add another layer of information before soil is moved, reused or accepted onto site.

Nationwide service across Ireland.

01/11/2026

Japanese knotweed doesn’t recognise property boundaries.

Along agricultural margins, roadside embankments, drainage corridors and neighbouring development sites, underground rhizomes can extend beyond the visible plant growth.

For farmers, commercial landowners and local authorities, identifying potential spread before excavation, drainage works or land clearance is an important part of responsible land management.

CDI Olfacta’s specialist detection dogs investigate areas of concern through scent, helping identify potential Japanese knotweed presence without widespread excavation.

Because what you can’t see above ground may still matter below it.

Smarter detection. Earlier insight. Better decisions.

🌐 www.cdireland.ie

01/11/2026

BEFORE THE DIGGERS ARRIVE.

The best time to investigate Japanese knotweed isn’t halfway through construction. It’s before groundworks begin.

For developers, utility companies, data centres and renewable energy projects, an unexpected discovery can mean disrupted schedules, additional soil management and unplanned costs.

CDI Olfacta provides specialist Japanese knotweed scent detection using trained English Springer Spaniels.

Our dogs can investigate areas where underground rhizomes may remain undetected by visual inspection alone.

From proposed access roads and service corridors to construction compounds and development boundaries, early detection helps project teams make better decisions.

Find it before you disturb it.

🌐 www.cdireland.ie

01/11/2026

THE RISK ISN’T ALWAYS VISIBLE.

A stockpile of screened topsoil may look perfectly clean. But appearances alone cannot confirm the absence of Japanese knotweed rhizomes or fragments.

For quarry operators and topsoil suppliers, contaminated material can create serious problems once it leaves the site.

At CDI Olfacta, our trained English Springer Spaniels use scent detection to investigate areas where Japanese knotweed may be present, including stockpiles and disturbed ground.

Independent screening provides another layer of assurance before material is moved or supplied.

Protect your material. Protect your customers. Protect your reputation.

🌐 www.cdireland.ie

31/10/2026

Wind farms. Solar developments. Data centres. Utility corridors.

These projects often involve extensive ground disturbance, temporary access roads, cable trenches and the movement of substantial quantities of soil.

And that’s where Japanese knotweed can become a problem.

Small underground rhizome fragments can be overlooked during visual inspections and potentially spread through excavation and soil movement.

CDI Olfacta provides specialist scent detection surveys to help project teams investigate Japanese knotweed risks across development sites, access routes and areas of planned groundworks.

No unnecessary excavation to search for it. Just trained detection dogs working to identify what the eye may miss.

Smarter detection. Earlier insight. Better decisions.

📩 Contact CDI Olfacta to discuss your project’s requirements.

🌐 www.cdireland.ie

31/10/2026

A construction site can look completely clear of Japanese knotweed. That doesn’t necessarily mean it is.

Previous excavation, vegetation clearance and ground disturbance can leave underground rhizomes that aren’t visible during a conventional walkover survey.

For developers, main contractors and civil engineering teams, discovering Japanese knotweed after earthworks have started can create serious complications.

CDI Olfacta’s specialist English Springer Spaniels detect Japanese knotweed by scent, helping identify potential risks before excavation, soil movement or construction begins.

The earlier you know, the more options you have.

📩 Talk to CDI Olfacta about Japanese knotweed detection for your next project.

🌐 www.cdireland.ie

31/10/2026

For quarry operators and topsoil suppliers, knowing what’s in your material matters just as much as knowing where it came from.

Japanese knotweed rhizomes can remain hidden in soil, even after screening and processing.

At CDI Olfacta, our specialist detection dogs use scent to investigate topsoil stockpiles and identify potential Japanese knotweed contamination before material is moved or supplied.

Independent screening provides another level of assurance for suppliers and their customers.

Protect your product. Protect your reputation.

📩 Contact CDI Olfacta to discuss independent topsoil screening.

🌐 www.cdireland.ie

30/10/2026

Your topsoil has a destination. What assurance goes with it?

For quarry operators and topsoil suppliers, the quality of material leaving site matters just as much as the quality of material being produced.

Japanese knotweed rhizome fragments can remain hidden in screened topsoil, with no visible indication of their presence.

CDI Olfacta provides independent scent-based screening using specialist detection dogs, helping suppliers identify potential contamination risks before material reaches customers.

It's a practical additional layer of assurance that can help protect your customers, your reputation and future contracts.

Good topsoil deserves good assurance.

🌐 cdireland.ie

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