Recuperation of cupuassu orchard with a historic of high infestation of witches’ broom disease in Roraima
Keywords:
Moniliophthora perniciosa, Theobroma grandiflorum, disease severity, phytosanitary prunings, integrated managementAbstract
The objective of this work is to report an experience done in the agricultural property where
integrated management measures was adopted in a witches’ broom infested cupuassu tree
orchard, aiming at reducing the incidence and severity of the disease and recovering a crop
productivity. In the cupuaçuzeiro orchard, located in the municipality of Rorainópolis/RR, there
were plants presenting varying severity of witches’ broom. Drastic pruning, phytosanitary
pruning and the remotion of some plants in the area was done to increase spacing. From 2013
to 2015, a fertilization of the plants was carried out based on soil analysis, removal of brooms
and application of Bordeaux paste. The pruning wastes were buried. In April 2017, there were
a reduction of 97% in incidence and of 70% until 100% in severity of disease, resulting in a
recovery of production, demonstrating the importance of integrated management for the crop,
being the results disseminated to farmers, technicians and students.
