The influence of soil moisture on macroscopic sulfur di oxide injury to pinto bean phaseolus vulgaris cultivar pinto 111 foliage Davids, J.A.; Davis, D.D.; Pennypacker, S.P. Phytopathology 71(11): 1208-1212 1981 https://eurekamag.com/research/006/700/006700484.php