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Plant Disease Management
Powdery Mildew
Breeding for Resistance
There are considerable ongoing efforts to develop resistance to powdery mildew in lettuce cultivars. With more resources available from the recent genomic characterization of lettuce germplasm, it is expected that breeding efforts will expand. Generally, very low resistance is observed across crisphead-type lettuces, while the highest relative resistance is recorded in leaf and butterhead types.