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Verification of Effective Fungicides for the Control of Basil (Ocimum basilicum) Downy Mildew in Field Condition

Sweet basil (Ocimum basilicum) is seriously infected by downy mildew which is caused by Peronospora belbahrii and affects the leaves, branches, and stems of basil. It is a widespread and serious disease of both greenhouse and field grown basil and can lead to 100 percent crop loss. The present study was undertaken to verify effective fungicides for the control of basil downy mildew. A total of six treatments with the untreated control were investigated in field conditions. The experiment was arranged in randomized complete block design with three replications. Fungicides were sprayed after disease occurrence at 7 days interval for four rounds. Data was recorded on disease severity, disease control, plant height and essential oil content. Among the fungicide treatments, Matco (DC=78.1%), DORAOSL (DC=70.3%) and Fengozeb (DC=69.97%) were effective fungicides against basil downy mildew in field condition.

Author(s): Banchiamlak Nigussie, Mihiret Mekonnen, Temesgen Gizaw

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