![Cleaned stem canker wounds on cocoa are protected and sealed by applying cuprous oxide canker paint (Source: Nordox)](/images/stories/Canker_paint_increase_penetration_of_active_copper_fungicide_into_the_bark_for_extra_protection.jpg)
Cleaned stem canker wounds on cocoa are protected and sealed by applying cuprous oxide canker paint (Source: Nordox)
Plant disease control is pre-occupied with pathogens that infect foliage and fruit although those attacking the bark and wood are altogether more economically damaging, especially in the longer term