DISEASE: Bacterial canker
HOST: Hazelnut
Primary symptoms are failure of buds to break and withering and death of new foliage in spring. Dead leaves remain attached to limbs after normal leaf fall.
Bacterial canker | Hazelnut
DISEASE: Bacterial canker
HOST: Hazelnut (Corylus americana)
PATHOGEN: Pseudomonas syringae pv. avellanae
PATHOGEN SYNONYM: Pseudomonas avellanae
SOURCE: P. Psalidas
DISEASE: Bacterial finger-tip rot
HOST: Banana
Cross sections of fruit with internal discoloration and rot. This disease is also known as Mokillo disease.
Bacterial finger-tip rot | Banana
DISEASE: Bacterial finger-tip rot
HOST: Banana (Musa sp.)
PATHOGEN: Burkholderia cenocepacia
PATHOGEN SYNONYM: Pseudomonas cenocepacia
SOURCE: I. Buddenhagen
DISEASE: Bacterial finger-tip rot
HOST: Banana
Longitudinal sections of fruit with internal discoloration and rot. Healthy (right).
Bacterial finger-tip rot | Banana
DISEASE: Bacterial finger-tip rot
HOST: Banana (Musa sp.)
PATHOGEN: Burkholderia cenocepacia
PATHOGEN SYNONYM: Pseudomonas cenocepacia
SOURCE: I. Buddenhagen
DISEASE: Bacterial finger-tip rot
HOST: Banana
Diseased banana hand with external discoloration.
Bacterial finger-tip rot | Banana
DISEASE: Bacterial finger-tip rot
HOST: Banana (Musa sp.)
PATHOGEN: Burkholderia cenocepacia
PATHOGEN SYNONYM: Pseudomonas cenocepacia
SOURCE: I. Buddenhagen
DISEASE: Bacterial leaf spot
HOST: Cabbage
Cabbage leaves with irregular, brownish lesions. The bacterium does not invade vascular tissues.
Bacterial leaf spot | Cabbage
DISEASE: Bacterial leaf spot
HOST: Cabbage (Brassica oleracea var. capitata)
PATHOGEN: Xanthomonas campestris pv. armoraciae
SOURCE: R. Gitaitis
DISEASE: Bacterial leaf spot
HOST: Cabbage
Water-soaked lesions on underside of leaf (left), and water-soaked, large necrotic lesions on upper side (right).
Bacterial leaf spot | Cabbage
DISEASE: Bacterial leaf spot
HOST: Cabbage (Brassica oleracea var. capitata)
PATHOGEN: Xanthomonas campestris pv. armoraciae
SOURCE: R. Campbell
DISEASE: Bacterial leaf spot
HOST: Cabbage
Leaf with various stages of lesion development, including water-soaked lesions.
Bacterial leaf spot | Cabbage
DISEASE: Bacterial leaf spot
HOST: Cabbage (Brassica oleracea var. capitata)
PATHOGEN: Xanthomonas campestris pv. armoraciae
SOURCE: R. Campbell
DISEASE: Bacterial leaf spot
HOST: Cabbage
Cabbage leaves with many irregular, dark, water-soaked lesions.
Bacterial leaf spot | Cabbage
DISEASE: Bacterial leaf spot
HOST: Cabbage (Brassica oleracea var. capitata)
PATHOGEN: Xanthomonas campestris pv. armoraciae
SOURCE: R. Gitaitis
DISEASE: Bacterial leaf spot
HOST: Cabbage
Necrotic, light tan leaf spots, a late stage in disease development.
Bacterial leaf spot | Cabbage
DISEASE: Bacterial leaf spot
HOST: Cabbage (Brassica pekinensis)
PATHOGEN: Xanthomonas campestris pv. armoraciae
SOURCE: R. Campbell