Prove di lotta contro il «mal bianco» del pomodoroe del peperone in coltura protetta

Control trials aginst pawdery mildew of tomato and pepper, caused by Leveillula taurica (Lev) Arn., were carried out in greenhouse. The systemic pyrazophos fenarimol and triadimefon, and the experimental nuarimol and propiconazole, gave the best results, either in preventing or in eradicating the infections. Slightly lower effect had bupirimate and dinocap, which showed also a shorter activity persistence. None of the tested compounds were phytotoxic on both hosts.