Canadian Forest Service Publications
A sampling technique for estimating numerical trends in larval populations of insect defoliators on conifers. I. Development and experimental evaluation of the technique. 1973. DeBoo, R.F.; Campbell, L.M.; Copeman, A.G. Phytoprotection 54(1):9-22.
Year: 1973
Issued by: Great Lakes Forestry Centre
Catalog ID: 35519
Language: English
Availability: PDF (request by e-mail)