Fungicidal treatments for control of cacao cutting disease in Ecuador
Highly significant increases in the rooting of cacao cuttings and in the number of roots developing on the cuttings were obtained with fungicides applied to the water in which the cuttings were prepared and transported to the cutting binss. Os the fungicides use Fermate and Zerlate were found to be the most satisfactory with Dithane appearin in second place. Spergon proved ineffective at the concentrations used and Formol showed promise at the lowest concentration but displayed such toxicity at somewhat higher concentrations that it is considered too dangerous for commercial use. Mercuric chloride proved extremely toxic at all concentrations tested. Fermate and Zerlate are considered the fungicides of choice since they gave effective results over a wide range of concentrations. Treatments of Fermate or Zerlate at 0.25 percent, or Dithane at 0.50 percent, applied in the wash water in which the cuttings are prepared, are recommended.
| Main Authors: | , |
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| Format: | biblioteca |
| Published: |
1955
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| Subjects: | THEOBROMA CACAO, ESQUEJES, BOTRYODIPLODIA THEOBROMAE, ENFERMEDADES FUNGOSAS, FUNGICIDAS, DOSIS DE APLICACION, ECUADOR, |
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| Summary: | Highly significant increases in the rooting of cacao cuttings and in the number of roots developing on the cuttings were obtained with fungicides applied to the water in which the cuttings were prepared and transported to the cutting binss. Os the fungicides use Fermate and Zerlate were found to be the most satisfactory with Dithane appearin in second place. Spergon proved ineffective at the concentrations used and Formol showed promise at the lowest concentration but displayed such toxicity at somewhat higher concentrations that it is considered too dangerous for commercial use. Mercuric chloride proved extremely toxic at all concentrations tested. Fermate and Zerlate are considered the fungicides of choice since they gave effective results over a wide range of concentrations. Treatments of Fermate or Zerlate at 0.25 percent, or Dithane at 0.50 percent, applied in the wash water in which the cuttings are prepared, are recommended. |
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