Muerte descendente causada por Colletotrichum en las plantas de café en el almácigo y su combate por medio de aspersiones en Turrialba, Costa Rica
A study was made in coffee nursery trees of a serious leaf spotting, defoliation, and dying-back of terminal and lateral branches. Isolations from leaves, flowers, fruits, branches, stems and roots yielded high percents of Colletotrichum coffeanum Noack. Inoculation experiments proved the pathogenic...
| Main Author: | |
|---|---|
| Format: | Artículo |
| Language: | Español |
| Published: |
Instituto Interamericano de Ciencias Agrícolas (IICA)
2025
|
| Subjects: | |
| Online Access: | https://repositorio.catie.ac.cr/handle/11554/14014 |
| _version_ | 1854965296023994368 |
|---|---|
| author | Hastings de Gutiérrez, L. |
| author_browse | Hastings de Gutiérrez, L. |
| author_facet | Hastings de Gutiérrez, L. |
| author_sort | Hastings de Gutiérrez, L. |
| collection | Repositorio CATIE |
| description | A study was made in coffee nursery trees of a serious leaf spotting, defoliation, and dying-back of terminal and lateral branches. Isolations from leaves, flowers, fruits, branches, stems and roots yielded high percents of Colletotrichum coffeanum Noack. Inoculation experiments proved the pathogenicity of the organism and indicated strain differences among the isolates, greater infections were obtained in plants under little shade, in younger leaves, and at very high humidities.
Of several fungicides that were tried, Fermate gave the best control of the disease. Bordeaux Mixture failed to control it and caused some injury in the coffee. Disease incidence was much greater in the no shaded plots than in those with 50% shade.
Weekly and biweekly spray applications were compared in a large test run for 12 months, comparing Parzate, Zarlate, Fermate, Copper A, Dithane and Tribasic Copper. For both spray schedules Fermate gave highly significant improvement over the controls and was generally superior to the other treatments, but differences between weekly and biweekly applications of Fermate were not statistically significant. Spraying with Fermate reduced very markedly the loss of the branches produced during the year. Zarlate and Dithane in some analyses, gave highly significant improvement over the untreated plots. Copper sprays applied weekly considerably injured the plants; increased infection appeared with Parzate treatments. |
| format | Artículo |
| id | RepoCATIE14014 |
| institution | Centro Agronómico Tropical de Investigación y Enseñanza |
| language | Español |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Instituto Interamericano de Ciencias Agrícolas (IICA) |
| publisherStr | Instituto Interamericano de Ciencias Agrícolas (IICA) |
| record_format | dspace |
| spelling | RepoCATIE140142025-09-07T00:28:17Z Muerte descendente causada por Colletotrichum en las plantas de café en el almácigo y su combate por medio de aspersiones en Turrialba, Costa Rica Hastings de Gutiérrez, L. Coffea arabica||Coffea arabica||Coffea arabica||Coffea arabica Semillero||seed beds||cama para as sementes||lit de semence Colletotrichum||Colletotrichum||Colletotrichum||Colletotrichum Marchitez descendente||dieback||apoplexia (planta)||dépérissement terminal Enfermedad fungosa||fungal diseases||doença fúngica||maladie fongique Fungicida||fungicides||fungicida||fongicide Cultivo bajo cubierta vegetal||underplanting||cultivo sob coberto vegetal||culture sous couvert végétal Costa Rica||Costa Rica||Costa Rica||Costa Rica Sede Central A study was made in coffee nursery trees of a serious leaf spotting, defoliation, and dying-back of terminal and lateral branches. Isolations from leaves, flowers, fruits, branches, stems and roots yielded high percents of Colletotrichum coffeanum Noack. Inoculation experiments proved the pathogenicity of the organism and indicated strain differences among the isolates, greater infections were obtained in plants under little shade, in younger leaves, and at very high humidities. Of several fungicides that were tried, Fermate gave the best control of the disease. Bordeaux Mixture failed to control it and caused some injury in the coffee. Disease incidence was much greater in the no shaded plots than in those with 50% shade. Weekly and biweekly spray applications were compared in a large test run for 12 months, comparing Parzate, Zarlate, Fermate, Copper A, Dithane and Tribasic Copper. For both spray schedules Fermate gave highly significant improvement over the controls and was generally superior to the other treatments, but differences between weekly and biweekly applications of Fermate were not statistically significant. Spraying with Fermate reduced very markedly the loss of the branches produced during the year. Zarlate and Dithane in some analyses, gave highly significant improvement over the untreated plots. Copper sprays applied weekly considerably injured the plants; increased infection appeared with Parzate treatments. 2025-09-05T17:34:49Z 2025-09-05T17:34:49Z 1954-07 Artículo https://repositorio.catie.ac.cr/handle/11554/14014 openAccess es Turrialba; Vol.4, no. 3-4 10 páginas application/pdf Instituto Interamericano de Ciencias Agrícolas (IICA) |
| spellingShingle | Coffea arabica||Coffea arabica||Coffea arabica||Coffea arabica Semillero||seed beds||cama para as sementes||lit de semence Colletotrichum||Colletotrichum||Colletotrichum||Colletotrichum Marchitez descendente||dieback||apoplexia (planta)||dépérissement terminal Enfermedad fungosa||fungal diseases||doença fúngica||maladie fongique Fungicida||fungicides||fungicida||fongicide Cultivo bajo cubierta vegetal||underplanting||cultivo sob coberto vegetal||culture sous couvert végétal Costa Rica||Costa Rica||Costa Rica||Costa Rica Sede Central Hastings de Gutiérrez, L. Muerte descendente causada por Colletotrichum en las plantas de café en el almácigo y su combate por medio de aspersiones en Turrialba, Costa Rica |
| title | Muerte descendente causada por Colletotrichum en las plantas de café en el almácigo y su combate por medio de aspersiones en Turrialba, Costa Rica |
| title_full | Muerte descendente causada por Colletotrichum en las plantas de café en el almácigo y su combate por medio de aspersiones en Turrialba, Costa Rica |
| title_fullStr | Muerte descendente causada por Colletotrichum en las plantas de café en el almácigo y su combate por medio de aspersiones en Turrialba, Costa Rica |
| title_full_unstemmed | Muerte descendente causada por Colletotrichum en las plantas de café en el almácigo y su combate por medio de aspersiones en Turrialba, Costa Rica |
| title_short | Muerte descendente causada por Colletotrichum en las plantas de café en el almácigo y su combate por medio de aspersiones en Turrialba, Costa Rica |
| title_sort | muerte descendente causada por colletotrichum en las plantas de cafe en el almacigo y su combate por medio de aspersiones en turrialba costa rica |
| topic | Coffea arabica||Coffea arabica||Coffea arabica||Coffea arabica Semillero||seed beds||cama para as sementes||lit de semence Colletotrichum||Colletotrichum||Colletotrichum||Colletotrichum Marchitez descendente||dieback||apoplexia (planta)||dépérissement terminal Enfermedad fungosa||fungal diseases||doença fúngica||maladie fongique Fungicida||fungicides||fungicida||fongicide Cultivo bajo cubierta vegetal||underplanting||cultivo sob coberto vegetal||culture sous couvert végétal Costa Rica||Costa Rica||Costa Rica||Costa Rica Sede Central |
| url | https://repositorio.catie.ac.cr/handle/11554/14014 |
| work_keys_str_mv | AT hastingsdegutierrezl muertedescendentecausadaporcolletotrichumenlasplantasdecafeenelalmacigoysucombatepormediodeaspersionesenturrialbacostarica |