VÉRIFIEZ VOS CONNAISSANCES - AspERGES
2. Plants affected by which condition are more susceptible to purple spot (Stemphylium)?
or
Vous avez raison!
Désolé.
Answer: Microscopic wounds caused by sand blasting are a common entry point for the purple spot pathogen. Frost damaged plants are often slow to resume growth, however frost damage is not known to spread any diseases.