Effect of Certain Plant Extracts to Control Purple Blotch Disease of Onion Plants (Allium cepa L.)

Effect of Certain Plant Extracts to Control Purple Blotch Disease of Onion Plants (Allium cepa L.)

The present investigation aimed to isolate the causative agents of onion purple blotch disease and evaluate the efficacy of certain plant extracts against the pathogen in vitro and under greenhouse condition. Antifungal activity of some aqueous plant extracts (Azadirachta indica Cydonia oblonga Datura stramonium Eucalyptus globulus Foeniculum vulgare Ocimum basilicum Rosmarinus officinalis and Salix mucronata) was assayed in vitro by well diffusion technique.