La lucha contra la roya del cafeto en Nicaragua :
Intensive treatment to eradicate Hemileia vastatrix is confined to c. 6000 ha. Leaf sprays are applied with a contact herbicide (Paraquat) mixed with a copper fungicide and adjuvants. The plant is then cut at 40-50 cm from the ground and the remains sprayed. This is supplemented by intensive spraying with pyracarbolid + a copper compound at 25-day intervals. Elsewhere copper fungicides alone are used, with strict quarantine control. As a result of the measures only isolated cases are now reported
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| Main Author: | |
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| Format: | biblioteca |
| Language: | eng |
| Published: |
Mar
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| Subjects: | CONTROL DE PLAGAS, COFFEA ARABICA, HEMILEIA VASTATRIX, ROYA, ENFERMEDADES FUNGOSAS, CONTROL DE ENFERMEDADES, CAMPANAS PREVENTIVAS, CONTROL QUIMICO, CUARENTENA, CONDICIONES ATMOSFERICAS, COSTOS, NICARAGUA, |
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| Summary: | Intensive treatment to eradicate Hemileia vastatrix is confined to c. 6000 ha. Leaf sprays are applied with a contact herbicide (Paraquat) mixed with a copper fungicide and adjuvants. The plant is then cut at 40-50 cm from the ground and the remains sprayed. This is supplemented by intensive spraying with pyracarbolid + a copper compound at 25-day intervals. Elsewhere copper fungicides alone are used, with strict quarantine control. As a result of the measures only isolated cases are now reported |
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