In Cucurbitaceous crops, the effect of this disease causes gray spots on the lower surface of the leaves.
Pale yellow spots are formed on the upper surface. This disease causes more damage to cucumber, gourds, and melons.
Along with this, on the leaves, a layer of brownish-black color is formed. If it rains in the summer season, this disease becomes very common.
For the control of this disease, Metalaxyl 4% + Mancozeb 64% WP @ 600 gram / acre or Sulfur 80% WDG @ 500 gram / acre or Tebuconazole 10% + Sulfur 65% WG @ 500 gram / acre
Spray Trichoderma viride @ 500 gram / acre or Pseudomonas fluorescens @ 250 gram as a biological treatment