A study of some factors influencing the abundance of Adelges cooleyi (Gill.) on Douglas fir
A study was carried out to determine factors which influence the abundance of Adelges (Chermes) cooleyi Gill, on Douglas fir. This was done through the observation of populations in the field, supported by some laboratory work designed to show that certain influences are important. The work was done...
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| Language: | English |
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University of British Columbia
2012
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| Online Access: | http://hdl.handle.net/2429/39948 |