VIEW ARTICLE

Graft Transmission and Host Range of the Pear Decline Causal Agent. Henry Schneider, Plant Pathologist, Department of Plant Pathology, University of California, Riverside 92502. Phytopathology 60:204-207. Accepted for publication 27 August 1969. DOI: 10.1094/Phyto-60-204.

The pear decline causal agent was not transmitted by scions taken from Pyrus sp. ‘Variolosa’ held at 4 C for dormancy chilling. The agent was transmitted with scions from nondormant Variolosa and Comice trees having leaf symptoms consisting of brown veins or curl. Own-rooted Angers Quince A trees were severely stunted beginning with the season of inoculation, and leaf veins became brown. Growth of Pyrus serotina seedlings was drastically retarded the season following inoculation, and leaf reddening and chlorosis occurred.