DISEASE: Bacterial leaf spot
HOST: Pumpkin
Leaf with tan to brown, angular lesions with dark margins. They are similar to those caused by angular leaf spot.

Bacterial leaf spot | Pumpkin
DISEASE: Bacterial leaf spot
HOST: Pumpkin (Cucurbita pepo)
PATHOGEN: Xanthomonas cucurbitae
SOURCE: J. Young
DISEASE: Corn stunt
HOST: Corn (Maize)
Chlorosis of leaf margins, the first symptom of disease.

Corn stunt | Corn (Maize)
DISEASE: Corn stunt
HOST: Corn (Maize) (Zea mays)
PATHOGEN: Spiroplasma kunkelii
SOURCE: T. Tsai, M. Davis
DISEASE: Sweet potato scab
HOST: Sweet potato
Tubers with large, dark scabs.

Sweet potato scab | Sweet potato
DISEASE: Sweet potato scab
HOST: Sweet potato (Ipomoea batatas)
PATHOGEN: Streptomyces ipomoeae
SOURCE: APS