Chemical management of mango powdery mildew.
Sinha P., Anupam Varma
Author Affiliation: Division of Plant Pathology, I.A.R.I., New Delhi 110 012, India.
Annals of Plant Protection Sciences 10 : 291-294
Abstract : Some 15- to 20-year-old mango cv. Dushehari trees were sprayed separately with dinocap, tridemorph, wettable sulfur, carbendazim and thiophanate-methyl in a field experiment conducted in New Delhi, India to control powdery mildew caused by Oidium mangiferae. The fungicidal spray schedule was worked out based on the occurrence of key weather factors. Two sprays with wettable sulfur WP at 0.2%, dinocap EC at 0.05%, carbendazim WP at 0.1%, tridemorph EC at 0.1% or thiophanate-methyl WP at 0.1% at 15 days interval, after the occurrence of high humidity and low temperature for 4-5 days in disease prone areas effectively controlled the disease. Cost:benefit ratio was higher in sulfur treatment followed by carbendazim.