Why is gin 'under threat'?

Why is gin 'under threat'? (BBC radio broadcast)​

 

Sad news if juniper is going to be lost to yet another alien plant disease :-(

 

Looks very bad. Causative agent Phytophthora austrocedrae. Also been found killing Cordilleran Cypress Austrocedrus chilensis (the first known host), Lawson's Cypress Chamaecyparis lawsoniana, and Nootka Cypress Cupressus nootkatensis, so it has a potentially wide host range in Cupressaceae.

http://www.forestry.gov.uk/pdf/phytophthora_austrocedrae_juniper_factsheet.pdf/$file/phytophthora_austrocedrae_juniper_factsheet.pdf
http://www.forestry.gov.uk/forestry/INFD-8RAJZ3
http://www.fera.defra.gov.uk/plants/plantHealth/pestsDiseases/documents/phytophthoraAustrocedrae.pdf