喷洒石硫合剂能够控制引起葡萄褐斑病(black measles)的三种变异病原体的侵染,该病导致葡萄幼苗生长衰落,加州大学的植物病理学家Doug Gubler说。按照他的观点,称为埃斯卡(esca)、西班牙斑点(Spanish measles)和Petri的真菌及复合体,遍布于加州各地。 Gubler说他初步的试验结果表明喷洒10～15加仑／ Spraying limestone sulfur can control the infestation of three mutant pathogens that cause black measles, which leads to the decline of grape seedling growth, said Doug Gubler, a plant pathologist at the University of California. According to him, fungi and complexes called esca, Spanish measles and Petri are found throughout California. Gubler said his preliminary test results showed that spraying 10 to 15 gallons /