Spinach White Rust.White rust (Albugo candida) is a common but usually not serious disease. Local infection appears as pustules or "blisters" filled with sporangia on leaves, smaller stems, and floral parts. Pustules measure approximately 1-2mm in diameter and are white or creamy yellow. Systemic infections result in abnormal growth, distortion, and sterility of flowers or inflorescences. These abnormalities (or hypertrophy) are known as stagheads and consist mostly of thick-walled oospores.

White rust

White rust (Albugo candida) is a common but usually not serious disease.

White rust (Albugo candida) on honesty (Lunaria annua) leaf

White rust (Albugo candida) on honesty (Lunaria annua) leaf

White blister rust Albugo candida pustules on upper leaf surface of old cauliflower plant - Stock Image

White blister rust Albugo candida pustules on upper leaf surface of old cauliflower plant - Stock Image

White blister rust Albugo candida on honesty Lunaria annua leaf - Stock Image

White blister rust Albugo candida on honesty Lunaria annua leaf - Stock Image

White blister rust Albugo candida on honesty Lunaria annua leaf - Stock Image

White blister rust Albugo candida on honesty Lunaria annua leaf - Stock Image

White blister rust Albugo candida on cabbage leaf underside - Stock Image

White blister rust Albugo candida on cabbage leaf underside - Stock Image

Blister rust Albugo sp blisters on the underside of a sunflower leaf - Stock Image

Blister rust Albugo sp blisters on the underside of a sunflower leaf - Stock Image

White rust, Albugo bliti, blisters on the upper surface of amaranth or pigweed leaves, Amaranthus retroflexus, - Stock Image

White rust, Albugo bliti, blisters on the upper surface of amaranth or pigweed leaves, Amaranthus retroflexus, - Stock Image

White rust (Albugo candida) on honesty (Lunaria annua) leaf - Stock Image

White rust (Albugo candida) on honesty (Lunaria annua) leaf - Stock Image

White rust, Albugo bliti, blisters on the upper surface of amaranth or pigweed leaves, Amaranthus retroflexus, - Stock Image

White rust, Albugo bliti, blisters on the upper surface of amaranth or pigweed leaves, Amaranthus retroflexus, - Stock Image

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