Which important white variety in Alsace is known for its low disease pressure adaptability?

The variety known for its low disease pressure adaptability in Alsace is Auxerrois. This grape is particularly well-suited to the climate and growing conditions of the region, which can be characterized by cool temperatures and the potential for fungal diseases. Auxerrois has demonstrated resilience to these pressures, making it a reliable choice for growers in Alsace. It thrives in the local terroir, producing wines that are aromatic and fruity, often with a creamy texture.

The other varieties listed, such as Chardonnay, Roussanne, and Sauvignon Blanc, while they have their own merits and characteristics, do not share the same level of adaptability to disease pressures as Auxerrois in this specific context. Their cultivation can be more challenging in regions like Alsace, where weather conditions may contribute to higher incidences of disease.