Front matter

Commonwealth of Pennsylvania

FINAL REPORT OF THE Pennsylvania Chestnut Tree Blight Commission

JANUARY 1 TO DECEMBER 15, 1913

1112 Morris Building, 1421 Chestnut Street, PHILADELPHIA, PA.

HARRISBURG, PA.: WM. STANLEY RAY, STATE PRINTER 1914

Pennsylvania Chestnut Tree Blight Commission

MEMBERS OF COMMISSION

Winthrop Sargent, Chairman Bryn Mawr

Harold Peirce, Secretary Haverford

Samuel T. Bodine Villa Nova

George F. Craig Rosemont

Theodore N. Ely Bryn Mawr

EXECUTIVE STAFF

Mark Alfred Carleton, General Manager

Samuel B. Detwiler, General Superintendent

Oliver D. Schock, Assistant General Superintendent

Thomas E. Francis, Field Manager, Western District

Joseph R. Wilson, Field Manager, Eastern District

David T. McCampbell, Chief Clerk

Irvin C. Williams, (Pennsylvania State Forestry Department),

Collaborator

SCIENTIFIC AND OPERATIVE STAFF

Frederick D. Heald, Pathologist

A. G. Ruggles, Entomologist

J. P. Wentling, Forester in charge of Utilization

Paul J. Anderson, Field Pathologist

F. P. Gulliver, Geographer

Caroline Rumbold, Physiologist in charge of Tree Medication

Joseph Shrawder, Chemist

Roy G. Pierce, Tree Surgeon

Keller E. Rockey, Forester in charge of Demonstration Work

Contents

Page.

Advance spot blight infections; treatment of various plants, 76-79

Ants as carriers of blight spores; experiments with, 44

Bast miner; relation of insect to dissemination of blight, 45

Beattie, Prof. R. Kent; Bibliography of the chestnut bark disease, 95-121

Bibliography of the chestnut bark disease, 95-121

Blight investigation and inspection of chestnut nurseries, 40

Blighted sprouts around stumps of trees cut at Hummelstown, 90

Burning over chestnut tree stumps; statement of results, 77

Carbon county, (Mahoning Valley), blight conditions, 64

Carleton, Mark A., General Manager, Pennsylvania Chestnut Tree

Blight Commission; Final report of, 27

Cicada sting wounds favorable for spread of chestnut bark disease, 45

Chemical investigations in connection with blight, 47

Chestnut trees a valuable factor in Pennsylvania forest wealth, 10

Chestnut trees, rapid growth of, 10

Chestnut trees in Pennsylvania; threatened extermination of, 10

Chestnut cordwood, reduced freight rates on, 57

Chestnut nursery stock; regulations governing shipments of, 91

Chestnut orchards and nurseries, protection of against blight, 29

Chestnut bark disease; fake remedies for, 30

Chestnut trees, various diseases of, 42

Chestnut tree medication, results of, 48

Chestnut tree blight exhibits at museums and schools, 58

Chestnut timber; deterioration of blighted, 56

Chestnut tree blight; methods of dissemination, 63

Chestnut tree blight; combatting the fungus, 10

Chestnut trees; products of blighted trees marketable, 11

Chestnut tree blight; how destructive pest was spread, 11

Chestnut tree blight; discovery of its prevalence in China, 28

Chestnut Tree Blight Commission;

active work suspended with regret, 12

Chestnut tree blight infection in Western District, 37

Chestnut tree blight; first report of appearance in Pennsylvania

filed by Harold Peirce, of Haverford, Montgomery county, 17

Chestnut tree blight in Wildwood Park, Harrisburg;

successful treatment of, 30

Chestnut tree blight exhibits; where made, 32

Co-operative work of U. S. Department of Agriculture and

Pennsylvania State Forestry Department, 33

Creosoting peeled chestnut stumps; tabulated results of, 78

Cutting-out process; effectiveness of treatment of method, 27

Detwiler, Samuel B., Superintendent. Reports of observations

on sanitation cutting of blighted chestnut areas, 63

Discovery of chestnut bark disease in China, 28

Eastern Pennsylvania blight conditions, 67

Eradicating the chestnut blight; estimated cost of operations, 78

Field work of scouts and valuable results obtained, 36

Field work in Eastern District, report relating to, 38

Field laboratory work and special investigations, 43

Galls on chestnut and relation to blight infections, 47

Geographical work; report of observations, 52

Gulliver, Dr. F. P., Geographer; Report of geographic work, 52

Harmless saprophyte in Western Pennsylvania, 38

Heald, Dr. F. D., Pathologist; Investigations of tree diseases, 40

History of early efforts to eradicate blight in Pennsylvania, 17

Infection of chestnut in Western Pennsylvania; tabulated report, 37

Infection centres on advance line of the blight, 71

Infection at Orbisonia, Huntingdon county; tabular statement, 72

Insects; beneficial by destroying spores of blight, 28

Insects as carriers of the chestnut blight spores, 42

Insect investigations; valuable facts ascertained by, 44

Law, amendment to chestnut blight, 94

Legislative action to control blight in Pennsylvania recommended, 22

Lime-sulphur solution to prevent spread of blight, 51

Local field work; how conducted in generally infected districts, 40

Main Line Citizens’ Association; valuable services rendered by, 19

Message from the Governor suggesting legislative help, 21

Mickleborough, Dr. John W.; combatting the chestnut blight, 19

Murrill, Prof. W. A.; plan proposed to combat chestnut blight, 23

Nursery inspections; regulating shipment of nursery stock, 28

Nursery chestnut stock; list of inspections, 43

Official letter from the Commission to Governor Tener, 9

Official report of the Chestnut Tree Blight Commission, 9-13

Origin of the chestnut blight disease, 11

Oldest infections located near New York City, 9

Pennsylvania Chestnut Tree Blight Commission, Members of, 1

Pennsylvania Chestnut Tree Blight Commission; Executive Staff of, 1

Pennsylvania Chestnut Tree Blight Commission;

Scientific and operative staff, 1

Pennsylvania initial State to combat spread of blight, 10

Pierce, Roy G., Tree Surgeon; Report of tree surgery work, 50

Production of blight spores, 41

Publications relating to the chestnut blight, list of, 95

Publicity work; valuable assistance rendered by newspapers, 59

Publications issued by the Commission; reports and bulletins, 33

Pycnospores and ascospores; development and dissemination of, 42

Regulations for chestnut nursery inspections, 93

Reinspections for blight; notes on, 86

Relation of soils to prevalence of blight, 52

Resistant and immune chestnut stocks; search for, 32

Rockey, Keller E.; Report of public demonstration work, 57

Rumbold, Dr. Caroline; Experiments in chestnut tree medication, 48

Ruggles, Prof. A. G.; Report of results of special insect investigations, 44

Sargent, Winthrop, Secretary of Commission; final official report of, 9

Schock, Oliver D., Assistant Superintendent;

valuable co-operative work of the press acknowledged, 60

Scientific research; prompt and thorough work urged, 12

Scouting for the chestnut blight, 73

Shrawder, Joseph, Chemist; Report of chemical investigations, 47

Spot infections; procedure to eradicate, 73

Suggestions for information of chestnut timber owners, 38

Tener, Hon. John K., Governor; message to the Legislature

relative to the chestnut blight disease, 21

Topton Mountain, Berks county; study of blight conditions, 68

Treatment of infected timber and disposal of lumber, 38

Treatment of infected chestnut areas, 74

Tree surgery; examinations made and results of operations, 50

Unfinished work of Commission;

experiments in progress and work contemplated, 34

Utilization of blighted chestnut a serious problem, 54

Value of chestnut destroyed in Pennsylvania, 59

Williams, Hon. Irvin C., Deputy Commissioner of Forestry;

Report as Collaborator of Pennsylvania Department of Forestry, 17

Wentling, Prof. J. P.; Report upon utilization of blighted chestnut, 54

Official Letter to

Hon. John K. Tener

Governor of the Commonwealth of Pennsylvania

Scouting for the chestnut tree blight.