NEW TREE DISEASE
A grave danger threatens the Douglas Fir, a splendid North American tree extensively used in British forestry schemes. A recent! issue of Nature describes two enemies which havo destroyed' its reputation for resisting insects and disease, and may cause great disaster to.the new plantations. The attacks of the woolly aphis or plant louse havo spread from the New Forest to. Peeblcsshire since 1914, and a second oncmy is a new species of destructive fungus observed in many parts of Scotland. Thn American white pino can no longer bo commercially planted in Europe, because; it is unable to resist a certain deadly fungus, and tho new ficourgo is a blow ro tho hopes of modern foresters because the Douglas Fir produces a largo volume of timber in a few year*. Instant burning of tiftooted treou h rspfjminwKlwJ for stamping -out tuo .tUMMI.' ' s,
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Bibliographic details
Evening Post, Volume CII, Issue 35, 10 August 1921, Page 3
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145NEW TREE DISEASE Evening Post, Volume CII, Issue 35, 10 August 1921, Page 3
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