RESULTS

(3)

FILTER

DISEASE: Bacterial blight

HOST: Hazelnut

Diseased young tree with discoloration of the cambium. Dieback of young twigs and branches is characteristic. Other typical symptoms are bud and twig necrosis and small, angular or round, water-soaked leaf spots.

Bacterial blight | Hazelnut

DISEASE: Bacterial blight

HOST: Hazelnut (Corylus americana)

PATHOGEN: Xanthomonas arboricola pv. corylina

SOURCE: J. Pscheidt

DISEASE: Bacterial leaf spot

HOST: Hawaiian ticktrefoil

Hawaiian ticktrefoil with orange-yellow lesions surrounded by broad yellow halos.

Bacterial leaf spot | Hawaiian ticktrefoil

DISEASE: Bacterial leaf spot

HOST: Hawaiian ticktrefoil (Desmodium sandwicense)

PATHOGEN: Xanthomonas axonopodis pv. desmodii

PATHOGEN SYNONYM: Xanthomonas campestris pv. desmodii

SOURCE: I. Buddenhagen

DISEASE: Halo blight

HOST: Rice

Leaves with yellowish brown lesions, 2 to 10 mm in diameter. Lesions are surrounded by distinct halos. Later, brown spots or stripes may develop in the center.

Halo blight | Rice

DISEASE: Halo blight

HOST: Rice (Oryza sativa)

PATHOGEN: Pseudomonas syringae pv. oryzae

SOURCE: H. Kuwata