Control cultural, biológico y químico de Moniliophthora roreri y Phytophthora spp en Theobroma cacao ‘CCN-51’

Control cultural, biológico y químico de Moniliophthora roreri y Phytophthora spp en Theobroma cacao ‘CCN-51’

Vicente Anzules Toala, Ricardo Borjas Ventura, Leonel Alvarado Huamán, Viviana Castro-Cepero, Alberto Julca-Otiniano

The objective of this study was to evaluate different control methods of fruits diseases of Theobromacacao ‘CCN-51’ in Santo Domingo de Los Tsáchilas, Ecuador. The treatments were a mixture of twochemical pesticides (Chlorothalonil and Pyraclostrobin) and a biological one (Bacillus subtilis) with andwithout fertilizers. In total there were 16 treatments with 3 repetitions, installed in a CCN-51commercial cocoa farms and under a Randomized Complete Block Design (RCBD). The results showedthat the use of fungicides (chemical and biological), decreased the incidence of 'moniliasis'(Moniliophthora roreri), 'brown spot' (Phytophthora spp.) and 'cherelle wilt'; but the application offertilizers did not increase the effectiveness of these products. The treatment only agricultural laborsdid not decrease the final incidence of 'moniliasis', nor of the 'brown rot'; instead, the final incidenceof 'cherelle wilt' increased. The number of cocoa fruits and yield were not directly related and thehighest yield of dry cocoa beans corresponded to T2 [Agricultural labors + Clorotalonil (1 kg ha-1) (c/15days) + Pyraclostrobin (0.5 kg.ha-1) (c/90 days) + Fertilizers (0.4 kg.ha-1) + organic fertilizer (2kg/planta)], which also had the highest net income/ha.

2019

Bacillus subtilis, cherelle wilt;, integrated management

10.17268/sci.agropecu.2019.04.08

Scientia Agropecuaria

Universidad Nacional de Trujillo

Agriculture (General), Agriculture