Cone production of balsam fir damaged by balsam woolly aphid
- 1 June 1975
- journal article
- Published by Canadian Institute of Forestry in The Forestry Chronicle
- Vol. 51 (3) , 105-107
- https://doi.org/10.5558/tfc51105-3
Abstract
The effect of balsam woolly aphid, Adelges piceae (Ratz.), damage on cone production by balsam fir, Abies balsamea (L.) Mill., was studied on 49 trees classified into six aphid damage classes. Results showed that there was no appreciable effect until damage exceeded the moderate level. Cone production on trees damaged beyond this level was seriously reduced but, since advanced damage is not reached by all trees simultaneously, it was concluded that adequate seed should be available for stand replacement.Keywords
This publication has 1 reference indexed in Scilit:
- A REVIEW OF THE BALSAM WOOLLY APHID IN NEWFOUNDLANDThe Forestry Chronicle, 1960