Avaliacao de fungicidas para controle simultaneo da ferrugem (Hemileia vastatrix) e da cercosporiose (Cercospora coffeicola) do cafeeiro :
In a field trial the fungicide efficiency in a simultaneous control program of rust and Cercospora leaf spot in coffee trees was evaluated. Treatments were performed as fallows: 1) Control (without fungicide); 2) Copper oxyde (1500 g a.i./ha) applied in December, cyproconazole + copper oxychloride (60 + 900 g a.i./ha) applied in January and cyproconazole (50 g a.i./ha) - applied in march; 3) Copper oxyde (1500 g a.i./ha) - applied on December, cyyproconazole + copper oxychloride (72 + 1080 g a.i./ha) - applied in January and cyproconazole (50 g a.i./ha) - applied in March; 4) Copper oxyde (1500 g a.i./ha) applied in December, cyproconazole + copper oxychloride (60 + 900 g a.i./ha - tank mix) - applied in Jannuary and cyproconazole (50 g a.i./ha) - applied in March; 5) copper oxichloride (1500 g a.i./ha) - applied in December, cyproconazole (50 g a.i./ha) - applied in Jannuary and cyproconazole (50 g a.i./ha) - applied in March. All treatments were efficient on rust control. Treatments with copper fungicides in the second application were more efficient for simultaneous control of rust and Cercospora leaf spot.
| Main Authors: | , , , |
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| Format: | biblioteca |
| Language: | eng |
| Published: |
Abr-
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| Subjects: | COFFEA ARABICA, HEMILEIA VASTATRIX, ROYA, ENFERMEDADES FUNGOSAS, CERCOSPORA COFFEICOLA, CERCOSPORIOSE, CONTROL DE ENFERMEDADES, FUNGICIDAS, CONTROL QUIMICO, |
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| Summary: | In a field trial the fungicide efficiency in a simultaneous control program of rust and Cercospora leaf spot in coffee trees was evaluated. Treatments were performed as fallows: 1) Control (without fungicide); 2) Copper oxyde (1500 g a.i./ha) applied in December, cyproconazole + copper oxychloride (60 + 900 g a.i./ha) applied in January and cyproconazole (50 g a.i./ha) - applied in march; 3) Copper oxyde (1500 g a.i./ha) - applied on December, cyyproconazole + copper oxychloride (72 + 1080 g a.i./ha) - applied in January and cyproconazole (50 g a.i./ha) - applied in March; 4) Copper oxyde (1500 g a.i./ha) applied in December, cyproconazole + copper oxychloride (60 + 900 g a.i./ha - tank mix) - applied in Jannuary and cyproconazole (50 g a.i./ha) - applied in March; 5) copper oxichloride (1500 g a.i./ha) - applied in December, cyproconazole (50 g a.i./ha) - applied in Jannuary and cyproconazole (50 g a.i./ha) - applied in March. All treatments were efficient on rust control. Treatments with copper fungicides in the second application were more efficient for simultaneous control of rust and Cercospora leaf spot. |
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