Exotic examples

The concerns of environment minister Roseanna Cunningham about the spread of exotic aquatic plants (your report, 24 February) are touching. Perhaps she could extend her concerns to the Loch Lomond and Trossachs "national park", where the largest single land use is a forestry component consisting mainly of exotic North American and European conifer trees whose planting had state support.

Perhaps she could go on to consider the Scottish Government's plans to support the planting of tens of thousands of hectares of Scotland with more of these exotic trees.

And perhaps she could consider dealing with the threat of non-native fish such as Vendace in Loch Earn or the non-native English Crayfish in limestone lochs in Sutherland.

Then there are all those millions of state-subsidised non-native sheep whose initial arrival had such an impact on our native Gaelic culture.

RON GREER

Blair Atholl

Perthshire