Evaluating the Efficacy of Commercial Products for Management of Bacterial Leaf Spot on Lettuce

Fig. 1. Bacterial leaf spot severity was evaluated by rating the most severely damaged area on the lettuce plant on a scale of 0 to 5: Rating = 1, Plant with a few individual bacterial leaf blight lesions.



Image from Plant Health Progress article:
Evaluating the Efficacy of Commercial Products for Management of Bacterial Leaf Spot on Lettuce