The Environment Secretary Owen Paterson is due to visit Cannock Chase in Staffordshire later concerning today's ban on imported Ash trees from Europe.
It's after outbreaks of a disease which it's feared could wipe out millions of native Ash trees across the country.
Ash dieback or Chalara fraxinea is a fungus which has killed 90% of Denmark's Ash trees.
Fears are growing that it could wreak the same kind of damage as Dutch Elm disease in the 1970s.
People in the Peak District are being asked to notify park authories if they have planted any ash trees in the past six years.
More worrying developments for the future of the ash trees so many people love.