Chapter 15. T. B. Sutton, A. L. Jones. 1981. Apple disease management. Pages 257-273. In: David Pimentel (editor). 1981. CRC Handbook of Pest Management in Agriculture. Volume 3, Boca Raton, Florida: CRC Press, 656 pages.

Keywords: apple diseases, apple scab Venturia inaequalis, monitoring productivity and dose, the Mills infection curves relate the intensity of apple scab infections to duration of wetting and temperature, monitoring relative dose, the relationship between Venturia ascospore productivity per cm2 of overwintered leaf tissue and dose, determining ascospore productivity, Burkard and rotorod traps, pattern of ascospore discharge, eradication of the ascospore stage, fungicide application techniques, dilute versus concentrate spraying, alternate middle spraying, host plant resistance to apple scab, current apple scab management program, components of the monitoring program, fire blight Erwinia amylovora, orchard management practices, removal of blighted tissue, pruning, variety selection and development, bactericides, timing of bactericide sprays based on environmental and biological

monitoring, occurrence of epiphytic population of Erwinia in healthy Bartlett pear flowers, powdery mildew Podosphaera leucotricha, eradication of mildew from infected buds, mildew management programs based on disease survey, timing of mildewcide-applications, biological control of powdery mildew with Cicinnobolus cesatii, variety selection and resistance, management programs for other diseases,