Some observations on the seedfall of sugar pine

by H. A. Fowells

Specifications for sugar pine issued by Navy Department

Protect western white pine and sugar pine from blister rust

by United States. Bureau of Plant Industry

Pocket guide to the improved grading system for ponderosa pi...

by Edward M. Gaines

Standard grading rules for Ponderosa and Sugar pine lumber

by Bob W. Cowbrough

Site preparation as an aid to sugar pine regeneration

by H. A. Fowells

Effect of fertilizer on cone production of sugar pine

by Gilbert Herman Schubert

Final environmental impact statement for sugar pine adaptive...

by United States. Forest Service. Pacific Southwest Region.

Sugar pine seedlings not protected from blister rust by chem...

by George M. Harvey

Guide to grading defects in ponderosa and sugar pine logs

by Willard L. Jackson

The Ehrman Mansion Sugar Pine Point State Park (1980 Pamphle...

Determining the age of blister rust infection on sugar pine

by James W. Kimmey

Cone beetles

by John Martin Miller

Possible means of reducing mountain pine beetle attacks in y...

by V. A. Clements

California sugar pine

The ribes of the sugar pine and western white pine region of...

by United States. Bureau of Plant Industry

Can the quality index concept be used in ponderosa pine and ...

by Carl A. Newport

How to identify blister rust infection and resistance in sug...

by Safiya Samman

Seed zones and breeding zones for Sugar Pine in southwestern...

by Robert Kenneth Campbell

Thunder in the mountains

by Johnston, Hank.