- AGRICULTURE AND AGRI-FOOD CANADA, SASKATOON RESEARCH CENTRE
- BC MINISTRY OF AGRICULTURE AND LANDS
- Dr. Elizabeth Beers
ORCHARD PEST MANAGEMENT ONLINE, WASHINGTON STATE UNIVERSITY
- Joseph Berger
BUGWOOD.ORG
- Dr. Ric Bessin
UNIVERSITY OF KENTUCKY
- Dr. David Boyd
CLEMSON UNIVERSITY
- Jennifer Bush
ENGAGEAGRO, GUELPH, ONTARIO
- D. Cheung
DKB DIGITAL DESIGNS
- Dr. John A. Cline
UNIVERSITY OF GUELPH
- Bernard Drouin
MINISTRY OF AGRICULTURE, FISHERIES, AND FOOD, QC
- Dr. Alan Eaton
UNIVERSITY OF NEW HAMPSHIRE COOP. EXTENSION
- Dr. D. Epstein
MICHIGAN STATE UNIVERSITY
- Dr. Deena Errampali
AGRICULTURE AND AGRI-FOOD CANADA
- Joseph Berger
BUGWOOD NETWORK
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- Gadoury, D.M., and MacHardy
1982. A model to estimate the maturity of ascospores of Venturia inaequalis. Phytopathology 72:901-904
- Bradley Higbee
PARAMOUNT FARMING CO.
- INTERNATIONAL PLANT NUTRITION INSTITUTE
- Peter Jentsch
CORNELL UNIVERSITY, HUDSON VALLEY LABORATORY, NY
- Alex Molnar
AGRICULTURE AND AGRI-FOOD CANADA, LONDON
- NRAES-75, Mid-Atlantic Orchard Monitoring Guide
EDITED BY DR. HENRY HOGMIRE
- NEW YORK STATE AGRICULTURAL EXPERIMENT STATION, GENEVA, NY
- Dr. Ian Scott
AGRICULTURE AND AGRI-FOOD CANADA, LONDON
- Dr. Rob Smith
RETIRED, AGRICULTURE AND AGRI-FOOD CANADA, LONDON
- Dr. RM Trimble
AGRICULTURE AND AGRI-FOOD CANADA, VINELAND
- Dr. Charles Vincent
AGRICULTURE AND AGRI-FOOD CANADA, SAINT-JEAN-SUR-RICHELIEU, QC
- Dr. Gordon Braun
AGRICULTURE AND AGRI-FOOD CANADA, KENTVILLE, NOVA SCOTIA
- S.A. Marshall
SCHOOL OF ENVIRONMENTAL SCIENCES, UNIVERSITY OF GUELPH
- D. Epstein
MICHIGAN STATE UNIVERSITY
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