---
title: "Biological control of invasive plants 2024/25"
ocid: "ocds-h6vhtk-054f02"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-054f02"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-054f02.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-054f02.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "LLYWODRAETH CYMRU / WELSH GOVERNMENT"
published: "2025-06-18"
---

# Biological control of invasive plants 2024/25

Buyer: LLYWODRAETH CYMRU / WELSH GOVERNMENT  
Current stage: Award  
OCID: ocds-h6vhtk-054f02

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## Summary

The procurement process led by the Welsh Government focused on the biological control of invasive plants for the 2024/25 period, particularly targeting Himalayan Balsam and Australian stone swampcrop. This contract falls under the industry category of environmental protection and is set in the United Kingdom, specifically addressing regional issues within Wales. The contract was awarded at the award and contract stage to Centre for Agriculture and Bioscience (CAB) International as a direct procurement method below the threshold without competition. The contract, valued at £69,000, commenced on 9th June 2025 and is expected to conclude by 31st March 2026. Key activities include mass rearing and release of biological control agents, monitoring of their populations, and assessment of climatic influences in Wales on rust fungi used in the trials. The procurement process is now complete.

This tender presents a significant opportunity for businesses specialising in environmental services, particularly those with expertise in biocontrol and ecological assessments. Companies with a strong background in scientific research and capability in conducting environmental trials under controlled settings would be well-suited to engage with such opportunities. The awarding to a large supplier like CAB International illustrates the scale and complexity of the work involved, suggesting that businesses seeking growth could benefit by partnering with or providing niche services that support large-scale environmental projects. By participating in similar tenders, companies can expand their service offerings and establish credibility in the field of environmental protection and sustainable management.

## Notice

Biocontrol trials on Himalayan Balsam and Australian stone swampcrop. Australian stone swampcrop (ASS) - mass rearing of ASS mites and 2 releases of mites at each of 3 sites during 24/25. Monitoring and assessment visits of mite populations at these sites. Mass rearing of mites for 2 releases at 1 site replicating in the field an integrated management lab experiment undertaken in 23/24. Monitoring and assessment visits of mite populations at this site. Himalayan balsam (HB) - production of sufficient rust inoculum for three releases in summer 24 at one site. Overwintering assessment visits. Susceptibility testing using two new strains of rust fungus on material collected in summer 2024. Propagation of HB plants in temperature controlled glasshouses under quarantine conditions using new strains. Investigation of climatic conditions in Wales and influence on rust persistence. Monitoring Report on all works.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/033254-2025 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Direct |
| Procurement method details | Below threshold - without competition |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 18 Jun 2025 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 4 Jun 2025 |
| Contract period | 8 Jun 2025 - 31 Mar 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £69,000 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | LLYWODRAETH CYMRU / WELSH GOVERNMENT |
| Locality | CARDIFF |
| Post town | Cardiff |
| Postcode | CF10 3NQ |
| Country | Wales |
| ITL 1 | TLL Wales |
| ITL 2 | TLL5 South East Wales |
| ITL 3 | TLL52 Cardiff and Vale of Glamorgan |
| Local authority | Cardiff |
| Electoral ward | Cathays |
| Westminster constituency | Cardiff South and Penarth |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | CENTRE FOR AGRICULTURE AND BIOSCIENCE (CAB) INTERNATIONAL |

## CPV Codes

### Divisions

- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 90720000 - Environmental protection

## Release History

- 18 Jun 2025 at 11:50 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/033254-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/033254-2025
  18th June 2025 - Contract details notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/Attachment/A-2316
  N/A

## Notice URLs

- http://gov.wales
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-054f02. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-054f02.json.