by Harry O. Yates
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A light-trapping guide to seasonal occur...
Key to Nearctic parasites of the genus R...
The Nantucket pine moth
Nantucket pine tip moth
Carbofuran applications fail to reduce d...
Cone serotiny of lodgepole pine near Isl...
Stem breakage effect on cone and pollen ...
Cone and seed yields in young western wh...
Vergleichende Untersuchung über die Ordn...
Forecasting seed crops and determining c...