Final report
Final report of the Pennsylvania Chestnut Tree Blight Commission
作者：Pennsylvania. Chestnut Tree Blight Commission
体例：题 章数：145
字数：203,586 来源：Project Gutenberg
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- 本站收录 1 个来源：Project Gutenberg（203,586 字）。
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- 原文溯源
cache/epub/79481/pg79481.txt（Project Gutenberg）
章节目录
共 145 题- Commonwealth of Pennsylvania
- JANUARY 1 TO DECEMBER 15, 1913
- Pennsylvania Chestnut Tree Blight Commission
- MEMBERS OF COMMISSION
- EXECUTIVE STAFF
- SCIENTIFIC AND OPERATIVE STAFF
- Contents
- LETTER OF TRANSMITTAL.
- 1112 Morris Building, Broad and Chestnut Streets
- PROGRESS OF FIELD WORK.
- EFFECTIVENESS OF THE CUTTING OUT METHOD.
- BENEFICIAL INSECTS.
- NURSERY INSPECTION.
- DISCOVERY OF THE CHESTNUT BLIGHT IN CHINA.
- PROTECTION OF ORCHARDS AND NURSERIES.
- PREVENTION OR REMEDY.
- CONTROL OF THE DISEASE IN ORCHARDS.
- FAKE TREATMENTS, THEORIES OR CAUSES, ETC.
- EXAMINATIONS OF INDIVIDUAL TREES.
- PUBLIC PARKS AND FARMS.
- BLIGHT-EATING BEETLES.
- CORDWOOD AND THE SPECIAL TARIFF.
- PROMPTNESS IN UTILIZING CHESTNUT.
- INTENSIVE LOCAL UTILIZATION.
- RESISTANCE AND IMMUNITY.
- CHESTNUT BLIGHT EXHIBITS.
- PUBLICATIONS.
- CO-OPERATION.
- MUCH IMPORTANT WORK UNFINISHED.
- FIELD OPERATIONS.
- REDUCTION OF FORCE.
- BETTER WORK IN WINTER.
- FIELD WORK IN THE WESTERN DISTRICT.
- A HARMLESS SAPROPHYTE.
- FIELD WORK IN THE EASTERN DISTRICT.
- SUGGESTIONS FOR TIMBER OWNERS.
- LOCAL INTENSIVE FIELD WORK.
- DISEASE INVESTIGATIONS AND NURSERY INSPECTION.
- GERMINATION OF SPORES.
- PRODUCTION OF PYCNOSPORES IN WINTER.
- BIRDS DISSEMINATE THE FUNGUS.
- EFFECT OF TEMPERATURE.
- RESISTANCE OF PYCNOSPORES.
- EFFECT OF DRYING ON ASCOSPORES.
- ENTRANCE OF BLIGHT IN GALLS.
- INSECTS AS CARRIERS OF THE DISEASE.
- OTHER DISEASES OF THE CHESTNUT.
- FIELD INVESTIGATIONS.
- NURSERY INSPECTION.
- INSECT INVESTIGATIONS.
- INSECTS CAUSING DIRECT INFECTION.
- INSECTS CARRYING SPORES BUT CAUSING NO DIRECT INFECTION.
- INSECTS MAKING WOUNDS IN TREES THUS OPENING THE WAY FOR INFECTION.
- CICADA STINGS.
- THE BAST MINER.
- LARVAL EXIT HOLES AS POINTS OF INFECTION.
- CROTCH INFECTIONS.
- EXPERIMENTS WITH ANTS.
- INFECTION IN GALLS.
- CHEMICAL INVESTIGATIONS.
- EXCESS OF TANNIN IN DISEASED WOOD.
- LOSS OF VOLATILE MATTER.
- CELLULOSE DETERMINATIONS.
- CHEMICAL CHANGES.
- NEW INJECTION MATERIAL FOR TREE MEDICATION.
- TREE MEDICATION.
- PLOTS UNDER EXPERIMENT.
- OBSERVATIONS OF THE WORK OF 1912.
- FAVORABLE EFFECTS OF ALKALIES.
- INJECTIONS IN 1913.
- EFFECTS OF THIS YEAR’S INJECTIONS.
- TREE SURGERY.
- INDIVIDUAL TREE EXAMINATIONS.
- ADVICE IN FOREST MANAGEMENT.
- CONTACT WITH THE PEOPLE.
- EXPERIMENTS.
- EXPERIMENTS WITH LIME-SULPHUR.
- ALLEGED CURES FOR THE BLIGHT.
- LOCATION OF CANKERS.
- VALUE OF TREE SURGERY WORK.
- OTHER TREE SURGERY WORK.
- GEOGRAPHIC WORK.
- WEATHER CONDITIONS.
- RELATION OF SOILS TO BLIGHT OCCURRENCE.
- LOCATION OF OBSERVATIONS.
- RESULTS OF OBSERVATIONS.
- RELATION OF ALTITUDE TO BLIGHT DISTRIBUTION.
- UTILIZATION.
- PRELIMINARY WORK.
- CONCLUSIONS OF UTILIZATION CONFERENCE AT TRENTON.
- LOCAL INTENSIVE UTILIZATION.
- RESULTS OF THE LOCAL WORK.
- DIFFICULTY OF OBTAINING LABOR.
- WORK IN OTHER LOCALITIES.
- DETERIORATION EXPERIMENTS.
- CHESTNUT EXTRACT CHIPS FOR PAPER PULP.
- TESTS IN CO-OPERATION WITH MANUFACTURERS.
- BLIGHTED WOOD NOT INJURED.
- KINDLING AND FUEL TESTS.
- MOVEMENT OF CORDWOOD.
- CO-OPERATION WITH THE U. S. FOREST SERVICE.
- DEMONSTRATION WORK.
- LECTURES.
- CHESTNUT BLIGHT EXHIBITS.
- DISTRIBUTION OF SPECIMENS.
- FIELD DEMONSTRATION.
- CO-OPERATION OF THE PRESS.
- INTRODUCTION.
- HOW THE BLIGHT SPREADS.
- By J. Wesley Sitler, June, 1913.]
- STUDY OF BLIGHT CONDITIONS IN THE MAHONING VALLEY.
- INFECTION POINTERS.
- STUDY OF BLIGHT CONDITIONS ON TOPTON MOUNTAIN, BERKS COUNTY.
- Lower figure is the approximate age of the original infection.]
- RESULT OF OBSERVATIONS.
- RATE OF INCREASE OF BLIGHT IN EASTERN PENNSYLVANIA.
- INFECTION CENTERS ON THE ADVANCE LINE.
- TABLE I.
- DETAILS OF INFECTION AT ORBISONIA, PA.
- PROCEDURE IN ERADICATING SPOT INFECTIONS.
- SCOUTING.
- METHOD OF ERADICATING A SPOT INFECTION.
- TABLE II.
- RESULTS OF CREOSOTING PEELED STUMPS.
- TABLE III.
- RESULTS OF BURNING OVER PEELED STUMPS.
- COST OF ERADICATION.
- EFFICIENCY OF THE CUTTING-OUT METHOD OF CONTROL.
- TABLE IV.
- TABLE V.
- TABLE VI.
- NOTES OF RE-INSPECTION.
- TABLE VII.
- PEELED STUMPS.
- RECOMMENDATIONS.
- REGULATING SHIPMENTS OF CHESTNUT NURSERY STOCK.
- COMMONWEALTH OF PENNSYLVANIA
- CERTIFICATE OF INSPECTION
- COMMONWEALTH OF PENNSYLVANIA
- THE AMENDED CHESTNUT TREE BARK DISEASE ACT.
- A BIBLIOGRAPHY OF THE CHESTNUT BARK DISEASE.[22]
- BUREAU OF PLANT INDUSTRY, UNITED STATES DEPARTMENT OF AGRICULTURE.
- DECEMBER 31, 1913.
- 18. Anonymous. [No title.] Torreya. Vol. 10, p. 99. April, 1910.
- 157. Fries, Elia. Elenchus Fungorum. Vol. 2, p. 73. 1828.