Zea vittata Voss

Incluido en una guía específica del cultivo. Esto no acredita frecuencia ni presencia actual en la región. · España (ámbito de la guía; no presencia confirmada) · Ámbito documental de la guía

Cómo afecta a esta planta

Afecta a muchos tipos de cultivos: patatas, remolacha, maíz, tomate y verduras de la familia de las crucíferas.

Fuentes ^[8]

Información limitada al hospedador y ámbito explícitos de la fuente.

Cómo afecta a esta planta

gray leaf spot

Cómo reconocerlo

Hojas: Initial lesions are small, tan, necrotic spots, sometimes with a faint yellow halo. Mature lesions are long (1-6 cm), narrow, and distinctly rectangular. Lesions are sharply restricted by leaf veins, giving them parallel sides and a blocky look. Mature lesion color is typically tan, light brown, or gray. Under humid conditions, lesions may appear grayish or olive-colored due to fungal sporulation. Symptoms first appear on the lowest leaves and progress up the plant. In severe cases, lesions merge (coalesce) to blight large sections of the leaf. Affected leaves may die prematurely, appearing dried and gray-brown. Tallos: Symptoms are not typically found on the stalk. Frutos: The ears and kernels are not directly infected by this pathogen. Raíces: No direct symptoms on roots. Planta completa: Reduced photosynthetic area from leaf blighting can lead to reduced grain fill, lower test weight, and weakened stalks. Severe infections can cause premature plant death.

Fuentes ^{[10] [11]}

Información limitada al hospedador y ámbito explícitos de la fuente.

Cómo afecta a esta planta

Northern Leaf Blight

Cómo reconocerlo

Hojas: Initial lesions are small, water-soaked, and elliptical. Mature lesions are large, cigar-shaped or elliptical, and tan-to-gray in color. Lesions range from 2.5 to 15 cm (1 to 6 inches) in length. Lesions typically have distinct, darker borders. Under humid conditions, lesions appear olive-green to black due to fungal sporulation. Lesions often start on lower leaves and progress up the plant. Multiple lesions can coalesce, blighting large areas of the leaf. Lesions run parallel to the leaf veins but are not strictly limited by them. Tallos: Typically unaffected. Frutos: Husks may develop lesions in severe cases, but kernels are not directly infected. Raíces: Unaffected. Planta completa: In severe infections, plants appear blighted or fired, resembling frost or drought damage.

Fuentes ^{[10] [11]}