Testing a range of ash species for tolerance to Chalara
This project aims to identify the different ash species growing in arboreta in Britain, collect shoots for grafting onto UK native ash rootstock and then plant out onto sites where Chalara is known to be present. Trees have been monitored for infection rates and survival across the various species.
Source as many of the different ash species growing in arboreta and botanic gardens in Britain as possible.
Identify at least 4 unrelated individuals within each species
Collect scions from selected trees and graft onto rootstock of UK native ash
Plant out successfully grafted trees in statistically replicated trials on three sites known to be infected with ash dieback
Observe and monitor disease development and tree survival
Consider possibility of introducing Chalara tolerance into UK native ash by hybridising with species that demonstrate high levels of tolerance.
Successful engagement with all the major British arboreta and botanic gardens: Westonbirt (Forestry Commission); Kew and Royal Botanic Gardens Edinburgh
Four individuals from each of 29 species identified for scion shoot collection
Trials were established at 3 sites following a complete block design in 2016
Symptoms of ash dieback infection started to appear 3 years after planting
Funding and partners
This contract is being co-ordinated by Richard Buggs of Queen Mary University of London
THAPBI is funded under the auspices of the Living With Environmental Change Partnership with support from the Biotechnology and Biological Sciences Research Council, Department for Environment, Food and Rural Affairs, Economic and Social Research Council, Forestry Commission, Natural Environment Research Council and the Scottish Government
Main funder (80%) is BBSRC as part of the LWEC framework