Effect of <i>Geosmithia morbida</i> Isolate and Temperature on Canker Development in Black Walnut

Fig. 1. Canker formation in black walnut (family OSU295) six weeks after inoculation with four isolates of Geosmithia morbida, representing four rDNA ITS haplotypes at 25/20°C and 32/20°C day/night temperatures, in August 2010.



Image from Plant Health Progress article:
Effect of Geosmithia morbida Isolate and Temperature on Canker Development in Black Walnut