Blackcurrant. Diseases.
November 29, 2022 at 6:18 am,
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Blackcurrant cup rust.
(initiator Puccinia ribesii-caricis)
- Signs of disease - leaves form, orange, swelling spots.
- Source of infection - infected seedlings, in proximity to blackcurrant seedlings, infected seedlings. Spread with wind, in humid and warm weather.
- Containment - infected leaves should be collected and destroyed.
Blackcurrant column rust.
(agent Cronartium ribicola)
- Signs of disease - orange spots on the top of the leaves, yellow and orange half-stems form at the bottom of the leaves.
- Source of infection - infected, unharvested leaves, infected near Weymouth pine.
- Containment - disposal of parts of infected plants.