It is an infrequent fungus , which occurs in particular on some Alba roses, wrinkled and perpetual hybrids : it has orange, point-like pustules on the underside of the leaves, it often associates and favors a strong weakening of the plant .
The preventive actions are based on cupric products, therefore by treating against scab, the plant is also protected from this pathogen.
Curative actions : systemic interventions stop the infection, which is very debilitating for the plant. The active ingredients are the same used against scab: Copper oxychloride, Triazoli, Fosetyl aluminum. The same precautions can be taken into consideration for Ramale Cancer (f.asc. Leptosphaeria Coniothyrium, f.con. Coniothyrium Fuckelii) and for Brown Rose Cancer (Cryptosporella Umbrina).
Discover our most disease resistant varieties:
Rosai Rampicanti Rambler
H. Noisette
Rosai ad Arbusto - Arbustiva
H. Noisette
Rosai Rampicanti Climber
Arbustiva moderna
Floribunda o Rosai a Mazzi
Rosai ad Arbusto - Arbustiva
Rosai Rampicanti Climber
Rosai ad Arbusto - Arbustiva
H. Multiflora
Rosai Miniatura
Floribunda o Rosai a Mazzi
Grandi Fiori - Ibride di Tea
Rosai Rampicanti Climber
Grandi Fiori - Ibride di Tea
Floribunda o Rosai a Mazzi