Control of black pod disease of cocoa in Trinidad
Black pod disease of cocoa caused by the fungus Phytophthora palmivora is the most serious field disease of cocoa in Trinidad and Tobago. In field trials conducted in Trinidad in three different locations with an average annual rainfall of 100 inches, it was shown that 3 weekly sprays with Kocide 101 (cupric hydroxide 86 per cent) at the rate of 2 lb./25 gal of water/acre reduced losses (diseased pods) from black pod disease to 15 per cent in the sprayed plots as compared to 37 per cent losses in the unsprayed (control) plots. The results also showed that there was an average increase of 82 per cent in the number of good (healthy) pods reaped, and an average increase of 73 per cent in pounds of wet cocoa beans obtained in the sprayed plots as compared to the unsprayed (control) plots
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| Formato: | biblioteca |
| Publicado: |
1970
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| Materias: | THEOBROMA CACAO, PHYTOPHTHORA PALMIVORA, PODREDUMBRES, ENFERMEDADES FUNGOSAS, CONTROL QUIMICO, FUNGICIDAS CUPRICOS, TRINIDAD Y TOBAGO, |
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| Sumario: | Black pod disease of cocoa caused by the fungus Phytophthora palmivora is the most serious field disease of cocoa in Trinidad and Tobago. In field trials conducted in Trinidad in three different locations with an average annual rainfall of 100 inches, it was shown that 3 weekly sprays with Kocide 101 (cupric hydroxide 86 per cent) at the rate of 2 lb./25 gal of water/acre reduced losses (diseased pods) from black pod disease to 15 per cent in the sprayed plots as compared to 37 per cent losses in the unsprayed (control) plots. The results also showed that there was an average increase of 82 per cent in the number of good (healthy) pods reaped, and an average increase of 73 per cent in pounds of wet cocoa beans obtained in the sprayed plots as compared to the unsprayed (control) plots |
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