Effect of different plant extracts and essential oils on sugar beet damping-off and root rot.
2009
Shabana, Y.M.N. | Abd-Allah, M.E. | Ismaiel, A.A.A. | El-Nady, A.E.
The antimicrobial activities of essential oils and plant extract were studied, it was revealed that Garlic extract, onion, clove and Artemisia extract showed complete hibition of mycelium linear growth of S.rolfsii at 75% Clove extract showed complete inhibition on R.solaniat 50% concentrate and at 75% concentrate on F.oxysporum. Garlic extract showed (85.66%) reduction of F.oxysporum. thyme oil was the best fungicidal to pathogenic fungi it gave (100%) inhibition to s . rolfsii at (2%), at (1%) to .Solani and F.oxysporum. Anise oil shows a complete inhibition to three pathogens at(1%).Camphor oil at (2%) show (62.22%) inhibition on R.Solani, (41.11%) inhibition on F.oxysporum and a complete inhibition in mycelium linear growth of S irolfsii at (1%). Other extract hadn't any effect on any pathogen. In greenhouse and Field experiment, data showed that three tested plant extract, thyme and anise oil generally effective in controlling pre-post emergence damping-off and significantly decreased root rot incidence compared with the control. And increasing yield component, total soluble sugars, sucrose percent in root and sugar purity as compared with Rizolex fungicide
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