Add to ORKGThe bulletin presents information gathered by a study that determined the extent of damage to ponderosa pine caused by the more abundant insect species, ascertained the life histories of the major present species, and evaluated factors influencing cone and seed losses related to the establishment and management of seed orchards and seed-production areas
The note reports a study that determined relative abundance and within-tree distribution of insect s...
Laboratory and field feeding tests with Leptoglossus occidentalis Heidemann proved that both immatur...
An overview of up to date issues faced by foresters concerning cone and seed insects. Includes list...
The bulletin discusses the life history and habits of the cone and seed insects of ponderosa pine. ...
The report inventories the insect species attacking cones and seeds of Idaho conifers. It identifie...
Insect damage was extensive to Douglas-fir, ponderosa pine, western white pine, and western larch co...
Whitebark pine, Pinus albicaulis Engelm. is an important but declining high-elevation tree species i...
Procedures; Distribution and economic importance; Emergence of overwintering forms; Time of cone att...
Whitebark pine, Pinus albicaulis Engelm. is an\ud important but declining high-elevation tree\ud spe...
Procurement of viable seeds of ponderosa pine (Pinus ponderosa Dougl. ex Laws.) in the Great Plains ...
Graduation date: 1987The impact of various factors on seed production in a\ud Douglas-fir (Pseudotsu...
The impacts and timing of insect infestation were determined in developing Engelmann spruce cones th...
Six species of insects were found attacking limber pine cones from July 26, 1968, through October 4,...
An analysis was made of the distribution of and interactions between three major species of insects ...
Graduation date: 1979Noble fir (Abies procera Rehd.) is an upper elevation timber species native to ...
The note reports a study that determined relative abundance and within-tree distribution of insect s...
Laboratory and field feeding tests with Leptoglossus occidentalis Heidemann proved that both immatur...
An overview of up to date issues faced by foresters concerning cone and seed insects. Includes list...
The bulletin discusses the life history and habits of the cone and seed insects of ponderosa pine. ...
The report inventories the insect species attacking cones and seeds of Idaho conifers. It identifie...
Insect damage was extensive to Douglas-fir, ponderosa pine, western white pine, and western larch co...
Whitebark pine, Pinus albicaulis Engelm. is an important but declining high-elevation tree species i...
Procedures; Distribution and economic importance; Emergence of overwintering forms; Time of cone att...
Whitebark pine, Pinus albicaulis Engelm. is an\ud important but declining high-elevation tree\ud spe...
Procurement of viable seeds of ponderosa pine (Pinus ponderosa Dougl. ex Laws.) in the Great Plains ...
Graduation date: 1987The impact of various factors on seed production in a\ud Douglas-fir (Pseudotsu...
The impacts and timing of insect infestation were determined in developing Engelmann spruce cones th...
Six species of insects were found attacking limber pine cones from July 26, 1968, through October 4,...
An analysis was made of the distribution of and interactions between three major species of insects ...
Graduation date: 1979Noble fir (Abies procera Rehd.) is an upper elevation timber species native to ...
The note reports a study that determined relative abundance and within-tree distribution of insect s...
Laboratory and field feeding tests with Leptoglossus occidentalis Heidemann proved that both immatur...
An overview of up to date issues faced by foresters concerning cone and seed insects. Includes list...