Allium white rot and its control |
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Authors: | A.R. Entwistle |
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Affiliation: | AFRC Institute of Horticultural Research, Wellesbourne, Wanvick CV35 9EF, UK. |
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Abstract: | Abstract. White rot ( Sclerotium cepivorum ) causes serious losses in Allium crops throughout the world. The pathogen produces sclerotia which survive for long periods and are the main source of inoculum. Sclerotial germination is stimulated by the host and new sclerotia are produced on the host near the soil surface. Allium crops are cultivated in various systems and environments and no one method of control is effective. There is increasing interest in control strategies based on combinations of treatments which decrease the populations of sclerotia in the soil, thereby improving the effectiveness of present methods of control. Materials and methods being tested for inclusion in programmes of integrated control include germination stimulants, soil fumigants, solar heating, roguing, aerobic composting, microbial control and combined chemical/microbial control with fungicide-resistant micro-organisms. |
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