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Forestry 1957 30(1):21-28;
© 1957 by Institute of Chartered Foresters
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NOTE ON THE FIRST BRITISH OCCURRENCE OF IPS CEMBRAE HEER (COL. SCOLYTIDAE)

MYLES CROOKE and D. BEVAN

Forestry Commission Research Station

During 1955 the larch bark beetle, Ips cembrae Heer, was discovered in twenty-nine localities in Moray, Nairn, Banff, and Inverness. These are the first British records for this species. It is assumed that I. cembrae entered the country in post-war shipments of German timber and has persisted in small numbers until the damage to woodlands caused by the gale in 1953 provided favourable conditions for its increase. A conspicuous feature of attack is the twig tunnelling of the adult beetles which produces crown pruning. In one locality I. cembrae succeeded in breeding in and killing standing European larch of some 45 years of age.


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