A DOUGLAS-FIR TWIG MINING BEETLE, PITYOPHTHORUS ORARIUS (COLEOPTERA: SCOLYTIDAE)

Autor: A. F. Hedlin, D. S. Ruth
Rok vydání: 1970
Předmět:
Zdroj: The Canadian Entomologist. 102:105-108
ISSN: 1918-3240
0008-347X
DOI: 10.4039/ent102105-1
Popis: Pityophthorus orarius Bright is a small beetle which mines and kills shoots of Douglas-fir. The adult tunnels into the shoot in early summer and lays its eggs. Tunnelling of the larvae causes twig mortality indicated by characteristic "flagging".
Databáze: OpenAIRE