January 2025 – Demonstrator Hub Updates
The past few months have presented a mix of challenges and progress across the Biomass Connect Demonstrator Hubs. Harsh winter conditions, including prolonged periods of frost, heavy rainfall, and multiple storms—most notably Storm Éowyn—have tested the resilience of crops. Many sites experienced strong winds, leading to structural damage in certain tree trials, while waterlogged soils created additional stress for some plant varieties. However, despite these weather-related setbacks, the majority of trials have remained stable, with early signs of spring growth beginning to emerge.
Winter phenotyping and plant health assessments have been a key focus during this period, with researchers collecting valuable data on species performance. Weed control efforts have continued, particularly in inter-row areas, and preparations for the upcoming Miscanthus and Willow harvests are well underway. Insect infestations have been noted in some Eucalyptus plots, but overall disease levels remain low across most hubs. Looking ahead, the next phase will involve careful monitoring of emerging buds and early-season growth, as well as strategic interventions to mitigate lingering storm impacts and optimise yield potential.
Crop Diaries
Click on the titles below to find out how each of the crops are progressing.
Alder
The SRF alder is showing strong growth across multiple sites. Budding has begun, and male catkins are forming. Inter-row herbicide applications have been completed at several hubs, improving weed control. Some trees were lost due to storm damage, but overall health remains good.
- Alder at Chesham, Jan 2025
- Alder at Cockle Park Farm, Jan 2025
- Alder at Headley Hall, Jan 2025
Black Locust
- The SRF black locust ‘Turbo’ is fully senesced at most sites, but in our Northern Ireland hub, green buds have been noticed. Wind rock and minor storm damage have been observed. Weed control measures have been effective, but certain plots require monitoring for weaker trees. Winter phenotyping has been carried out at some locations but others have reported difficulties in taking measurements due to the long thorns.
- Black Locust in Ayrshire, Jan 2025
- Waterlogged Black Locust at Chesham, Jan 2025
- Black Locust Thorns
- Phenotyping Black Locust at North Wyke
Eucalyptus
Eucalyptus has been heavily impacted by winter storms, with multiple trees lost or damaged. Wind rock has led to water pooling around tree bases, and staking has been necessary. Some provenances are faring better than others, and frost damage has been noted at select locations. Additionally, insect infestations (Psyllids) have been reported in some plots.
- Eucalyptus at Headley Hall, Dec 2024
- Eucalyptus at Cockle Park Farm, Dec 2024
- Eucalyptus at Hillsborough, Jan 2025
- Eucalyptus at North Wyke, Jan 2025
- Storm damage to Eucalyptus at Boghall, Jan 2025
- Eucalyptus at North Wyke, Jan 2025
Poplar
SRF and SRC Poplar trials are progressing well. Budding has begun, and phenotyping assessments have been completed. Some storm-related branch breakage has been observed, but no significant disease issues have been reported. Weed control efforts have been largely effective.
- Italian Poplar at Cockle Park Farm
- Italian Poplar at Cockle Park Farm
- Poplar in morning frost at Chesham
Miscanthus
- Miscanthus crops are preparing for harvest across multiple hubs. This is planned for February at most sites. High winds have stripped leaves from stems, leaving thick layers of litter at the base of plants.
- Miscanthus at Headley Hall
- Miscanthus leaf drop at Headley Hall
- Miscanthus senesced at Headley Hall
- Miscanthus giganteus at Headley Hall, Dec 2024
- Miscanthus variety trial 2023 at Boghall, Jan 2025
- Miscanthus
- Miscanthus in the snow at Chesham.
- Miscanthus at Aberystwyth, Jan 2025
- Miscanthus at Hillsborough, Jan 2025
Willow
SRC Willow and its variety trials are showing early signs of catkin formation. Growth has been steady, and phenotyping has been completed. Some hare damage has been noted, and inter-row spraying is being considered for weed control. Certain varieties require close monitoring in the upcoming season.
- Willow at Cockle Park Farm
- Willow variety trial at Headley Hall, Jan 2025
- Willow at Cockle Park Farm
- Willow Phenotyping at Cockle Park Farm
- Willow Phenotyping at Cockle Park Farm
Sida
- The sida plots are all fully senesced, with weeding and other maintenance ongoing.
Reed Canary Grass
The reed canary grass has yellowed over the winter. Some plots remain waterlogged, and drainage monitoring is ongoing. Replanting efforts are planned for spring where necessary.
- Reed Canary at Cockle Park Farm
- Reed Canary at Cockle Park Farm
Switchgrass
The switchgrass plots has yellowed over the winter. Some plots remain waterlogged, and drainage monitoring is ongoing. Replanting efforts are planned for spring where necessary.
- Switchgrass at Cockle Park Farm, Jan 2025