Use of cupric chloride (copper oxychloride) and captafol (ortho-difolatan) to control coffee berry disease in Kenya
Cupric chloride 50 WP and Captafol 80 WP either on their own or in various combinations were applied on two anti-CBD spray programmes to determine how Cupric chloride, the cheapest anti-CBD fungicide in Kenya, could be profitably used while delaying development of copper phytotoxicity in coffee plants. As few as 3 anti-CBD sprays were applied on a flexible spray programme at a medium altitude site during a year with low rainfall and moderately high CBD infection, as compared to the 8 anti-CBD sprays applied on the recommended spray programmes. Under high CBD infection, however, control was relatively poor on both spray programmes. The probable reasons leading to failure of control during the high rainfall, and CBD infection year have been discussed. Control of CBD using tank mixtures of Cupric chloride 50 WP (0.5) and Captafol 80 WP (0.2) is cheaper than using Captafol 80 WP (0.4) throughout the year, and utilizes less amounts of Cupric chloride than using Cupric chloride 50 WP (0.7) throughout the year
| Main Authors: | , |
|---|---|
| Format: | biblioteca |
| Published: |
May
|
| Subjects: | ENFERMEDADES FUNGOSAS, COLLETOTRICHUM, CONTROL DE HONGOS, CONTROL QUIMICO, FUNGICIDAS, FORMULACIONES, KENIA, COLLETOTRICHUM COFFEANUM, FUNGICIDAS CUPRICOS, EFECTOS DE LOS FUNGICIDAS, |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Cupric chloride 50 WP and Captafol 80 WP either on their own or in various combinations were applied on two anti-CBD spray programmes to determine how Cupric chloride, the cheapest anti-CBD fungicide in Kenya, could be profitably used while delaying development of copper phytotoxicity in coffee plants. As few as 3 anti-CBD sprays were applied on a flexible spray programme at a medium altitude site during a year with low rainfall and moderately high CBD infection, as compared to the 8 anti-CBD sprays applied on the recommended spray programmes. Under high CBD infection, however, control was relatively poor on both spray programmes. The probable reasons leading to failure of control during the high rainfall, and CBD infection year have been discussed. Control of CBD using tank mixtures of Cupric chloride 50 WP (0.5) and Captafol 80 WP (0.2) is cheaper than using Captafol 80 WP (0.4) throughout the year, and utilizes less amounts of Cupric chloride than using Cupric chloride 50 WP (0.7) throughout the year |
|---|