Disease control by anticipation: testing Mauritian varieties against foreign diseases
| MSI99P1054 | |
| Sullivan, S. Dhayan, S. Autrey, L. J. C. | |
| Disease control by anticipation: testing Mauritian varieties against foreign diseases | |
| 3rd ISSCT Sugar Cane Pathology Workshop, Mauritius, 22-26 July 1991 | |
| Conference paper | |
| 1991 | |
| Abstract in Sug. Cane 1992 (1): 28 | |
| En | |
| En | |
| The risk of introducing new diseases and pests into Mauritius has become greater during the last thirty-five years with the increase of maritime and especially international air traffic. It has therefore been felt necessary to test promising and commercial varieties in Mauritius for their reaction to foreign diseases likely to become important if introduced. To that effect, Mauritian sugar cane varieties have been tested against Fiji disease in the Malagasy Republic and in Australia. Tests with downy mildew, leaf scorch, red rot, smut, sugar cane mosaic virus (SCMV) and white leaf disease are carried out in Taiwan. Varieties are also evaluated against SCMV in South Africa. A few varieties have been tested at Fort Detrick, Maryland, USA, with the strain of downy mildew (Perenosclerospora sorghi) existing in Thailand. The number of varieties tested has been as follows: Fiji disease: 20 in Malagasy Republic, 39 in Australia; SCMV: 20 in Taiwan, 19 in South Africa (including S17 and R570); Downy mildew: 33 in Taiwan, 19 in USA. In addition, the reaction of 39, 31, 32 and 15 clones to leaf scorch, red rot, smut and white leaf, respectively, has been assessed in Taiwan. Varietal reaction indicates the existence of different strains of Fiji disease in the Malagasy Republic and Australia and of smut in Taiwan and Mauritius. Commercial varieties highly susceptible to foreign diseases have occupied or occupy a significant area under cane in Mauritius. For example, M134/32, which is highly susceptible to Fiji disease, was planted on over 92 per cent of the area under cane in the 1950's. Knowledge of the reaction of local and foreign varieties grown locally to important exotic pathogens is an integral part of the disease control strategy developed by the MSIRI since its creation. | |
| SUGARCANE DISEASE CONTROL DISEASE PREVENTION DISEASES | |
| MAURITIUS | |
| Sugarcane: Diseases and disease management | |
| 1992-07-15 | |
| En | |
| Mauritius Sugar Industry Research Institute | |
| PATH |