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20 years' progress of Au Sable Forest Products Association
The Laws in force against injurious insects and foul brood in the United States
Tobacco in Ontario, Canada
Summary of activities fiscal year 1964, Plant Quarantine Division
Preliminary report on the insect enemies of forests in the Northwest : An account of the results gained from a reconnaissance trip made in the spring…
Field experiments for the control of cabbage insects
Innovations in apple handling methods and equipment
USDA-ARS action plan for fruit flies research
Suggestions for the collection of range plant specimens on National forests
Identifying germplasm for successful forage legume-grass interactions : proceedings of a symposium of the Crop Science Society of America, November 1…