RESULTS

(3)

FILTER

DISEASE: Bacterial pustule

HOST: Soybean

Early symptoms are minute, pale green spots on young leaves. Later, small pustules form in the center of spots, best observed on underside of leaves. Spots vary in size and darken with age and lesions coalesce. Dead areas are torn away by wind.

Bacterial pustule | Soybean

DISEASE: Bacterial pustule

HOST: Soybean (Glycine max)

PATHOGEN: Xanthomonas axonopodis pv. glycines

PATHOGEN SYNONYM: Xanthomonas campestris pv. glycines

SOURCE: APS

DISEASE: Chocolate spot

HOST: Corn (Maize)

Leaf with dark brown, elongated spots surrounded by broad, yellow halos.

Chocolate spot | Corn (Maize)

DISEASE: Chocolate spot

HOST: Corn (Maize) (Zea mays)

PATHOGEN: Pseudomonas syringae pv. coronafaciens

SOURCE: D. White

DISEASE: Western wetwood

HOST: Elm

Spokelike, discolored extensions that expanded into sapwood, following an injection with a fungicide. The causal agent is not known but symptoms are associated with bacteria and yeast.

Western wetwood | Elm

DISEASE: Western wetwood

HOST: Elm (Ulmus americana)

PATHOGEN: Causal agent unknown

SOURCE: W. Sinclair