Management of Lethal wilt disease in oil palm in areas with high incidence
Lethal wilt disease (ML for its name in Spanish) in oil is an endemic disease in Colombia, where its importance is not only related to more than 1000 ha eradicated in the East Zone between 1994 and 2010 but on his rapid spread toward other oil palm zones. The management practices implemented in the affected states have been detection and eradication of infected palms, as well as the control of grasses and the establishment of other cover crops, but these practices have not been enough to reducing the dissemination of the pathogen responsible of this disease. In the development of an integrated control program for ML, Cenipalma developed a plan that included the results on the research with its insect vector, the incubation period of the pathogen in the palm, the effect of agronomic practices and epidemiological studies. This work evaluated the management program i an area with a development rate above 0.030 year-1, that included detection and opportune eradication of affected palms, grasses and insect control, using efficient molecules. With a simulation model it was compared the development of the disease in the absence of the control measures.The results indicated that when the control measures were implemented according to the program at regional level, it was possible to reduce the number of cases of palms with ML between 30.8 and 98.9%, compared with the results where the management was implemented locally, where there was not a response to the control measures, because there was an increase from 29.2 to 59.9 in the number of diseased palms due to the inoculum carried by insects coming from neighboring infected fields with high inoculums potential. These results indicated that it is possible to control lethal wilt disease in oil palm when an integrated management program is implemented at regional level.
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Fedepalma
2012
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| Online Access: | https://publicaciones.fedepalma.org/index.php/palmas/article/view/10738 |
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