It is also threatened by hybridisation with other species, such as "betula pendula". The larvae feed on "Betula pubescens" and "Betula pendula". The larvae feed on "Betula pendula" and "Betula pubescens". The larvae feed on "Betula pendula" and "Betula pubecens". In New Zealand, it associates solely with "Betula pendula". European Birch ("Betula pendula") has also elevated its range in altitude. Similarly, the bark of the silver birch ("Betula pendula") peels off in strips. Silver birch ("Betula pendula") was more affected than downy birch ("Betula pubescens"). It was recorded under silver birch ("Betula pendula") in Manjimup, Western Australia in 2010. Silver Birch ("Betula pendula"), White Birch ("Betula pubescens"), etc. At Mohos, vegetation consists of "Alnus glutinosa" (common alder), "Betula pendula" and "Salix". "Betula pendula" (silver birch), and in the fern "Asplenium normale".