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Goat Moth - Cossus cossus | deutsch

Symptoms    Feeding damage by larvae above the stem base; caterpillar producing oval tunnels about 1,5cm in diameter, which broaden to several cm towards the end of the feeding period; shavings and feces are expelled; sapflow around the emerging places; Butterfly grey brown, wingspan up to 10cm, very plump; characteristic flesh-red caterpillars can reach 10cm in length and 1cm in width, very voracious, smelling intensily like pyroligneous acid; generation three years
Impact    Death of trees directly caused by feeding of the caterpillars; increased danger of breakage, entrance of wood distroying fungi
Control    Removal of infested trees, as long as the caterpillars are present
Hosts   Maple; Apple; Birch; Pear; Beech; Oak; Alder; Ash; Cherry; Linden, Lime; Poplar; Elm; Willow;
Affected plant parts    Root; Stem;


Common alder: feeding tunnel and larva of the goat moth
Common alder: feeding tunnel of the goat moth
Common alder: tarry spots caused by the goat moth

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