For controlling leaf-spot disease in tobacco (Nicotina tobaccum), plants sweet basil (Ocimum basilicum) on the borders of the field. He believes that planting sweet basil in this way discourages the leaf-spot disease in tobacco plants and saves the crop.
Crop: tobacco
Crop Family: Solanaceae
Crop Scientific Name: (Nicotina tobaccum)
Crop Vernacular Name: Nicotina tobaccum
Ingredients: planting sweet basil (Ocimum basilicum) on farm borders
"Management of downy mildew of sweet basil (Ocimum basilicum) caused by Peronospora belbahrii by means of resistance inducers, fungicides, biocontrol agents and natural products - "
https://link.springer.com/article/10.1007/s12600-012-0264-y