DISTRIBUTION OF FIRST INSTAR NYMPHS OF ADELGES PICEAE (HOMOPTERA: PHYLLOXERIDAE) ON BRANCHES OF BALSAM FIR, ABIES BALSAMEA, AFTER COLONIZATION
- 1 October 1974
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 106 (10), 1075-1080
- https://doi.org/10.4039/ent1061075-10
Abstract
Balsam woolly aphid nymphs, Adelges piceae (Ratz.), settle primarily in the apical 3-year growth of a branch. This portion of a branch is a natural population unit that can be designated a sample universe for detailed studies of aphid survival and mortality.Keywords
This publication has 4 references indexed in Scilit:
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- A REVIEW OF THE BALSAM WOOLLY APHID IN NEWFOUNDLANDThe Forestry Chronicle, 1960