What type of crop is primarily affected by the pathogen Xylella fastidiosa?

Xylella fastidiosa is a bacterial pathogen that primarily affects fruit crops, particularly those with woody or perennial characteristics. This pathogen is known for causing a variety of diseases in economically important plants, including grapevines, olive trees, and citrus, leading to significant yield losses and reduced fruit quality. The bacterium primarily spreads through xylem-feeding insects, which can transmit it from one plant to another, exacerbating its impact on fruit crops. While nuts, vegetables, and grains can be affected by various pests and diseases, Xylella fastidiosa's specific affinity for certain fruit crops makes them the primary concern for growers and agricultural professionals dealing with this pathogen.