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Biological control of invasive plants 2026/27

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Summary

Machine-generated summary

The Welsh Government has awarded a contract for biological control of invasive plants for 2026/27. The work covers field and laboratory based experiments and the release of biological control agents, including mites and a rust fungus, to manage Himalayan balsam and Australian swamp stonecrop. These invasive non-native plants reduce biodiversity by crowding out native vegetation, and the stonecrop deoxygenates water and reduces numbers of small invertebrates, amphibians and fish. Traditional control methods are generally ineffective and herbicides are often inappropriate near waterbodies or protected sites. The contract was awarded to CABI Europe - UK.

Description

Invasive non-native plant species like Himalayan balsam (HB) and Australian swamp stonecrop (ASS) significantly reduce biodiversity by crowding out native vegetation and limiting plant and animal species diversity. ASS deoxygenates water and reduces numbers of small invertebrates, amphibians and fish. Traditional methods for the control of HB and ASS are generally ineffective. Chemical control with herbicides is the most effective but often inappropriate next to or in waterbodies or protected nature conservation sites. The contract includes field and lab based experiments and release of relevant biological control agents (mites and rust fungus) to manage these two plant species. Pilots and testing projects are an important part of understanding the benefits and effectiveness of biological controls and the problems these species cause. This investment now in biological control methods and their effective implementation have the potential to provide considerable benefits in terms of reduced costs and impacts as described above in future years.

Official source

Source: Find a Tender Service (UK Cabinet Office / Crown Commercial Service)

Always verify details on the official notice.

Last verified against Find a Tender Service (UK Cabinet Office / Crown Commercial Service) 3 weeks ago

Documents on Find a Tender Service (UK Cabinet Office / Crown Commercial Service) (English)

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