Dossier
Neem oil
Coverage of Neem oil in the Nexus archive.
- How to protect your roses from black spot disease
Black spot disease, caused by the fungus Diplocarpon rosae, damages roses by creating black spots on foliage and weakening plants. Management includes pruning infected parts, using fungicides like mancozeb or Neem oil, and preventive measures such as planting resistant varieties and avoiding overhead watering.