Abstract
The present study is to evaluate the efficiency of the Biostimulant on the production of cherries from healthy anddiseased trees in a context of pressure from Swollen shoot cocoa disease in Petit-Bondoukou in the department of Soubre. Thespecific aim is to compare the effect of the single and double doses of Banzai on the production of cherries from healthy anddiseased trees. The experimental design consists of a single block of four plots marked T0 (Control), T1 (a standard rate Banzaiapplication without fertilizer), T2 (a double rate Banzai application without fertilizer) and T3 (a standard rate Banzai applicationwith fertilizer). Each plot contains ten healthy trees and ten trees with swollen shoot disease. This device was repeated four timesat the study site. Banzai was applied for four months and observations were made for six consecutive months on the number ofcherries produced. The results of the Kruskal-Wallis test showed that the treated plots produced significantly more cherries thanthe control plots in both healthy and diseased trees at any dose. In addition, in healthy trees, the Kruskal-Wallis test showed thatthe single dose of Banzai without fertilizer (T1) significantly produced more cherries than other treatments. While in diseasedtrees, the Kruskal-Wallis test showed that the double dose of Banzai without fertilizer (T2) significantly produced more cherriesthan other treatments.
Highlights
Côte d'Ivoire is a tropical country, located in West Africa, whose economy is based on agriculture
The selected sites were characterized by cocoa plots with young outbreaks containing trees affected by swollen shoot disease, but still in production and apparently healthy trees
Each elementary plot has an area of about 300 m2 and contains 20 trees, including 10 diseased trees and 10 apparently healthy trees
Summary
Côte d'Ivoire is a tropical country, located in West Africa, whose economy is based on agriculture. The virus causes low flowering, low fruit set, very pronounced physiological drying and a rapid decrease in the number of cherries or pods All these disruptions result in a rapid drop in production, followed by the death of attacked trees after at least three years of infection [5]. The control method, which recommends that grubbing-up, is difficult for producers to accept because the areas destroyed are too large and have a negative impact on the socioeconomic situation of producers Faced with this situation, alternative solutions must be found to the uprooting of sick cocoa trees. Biostimulants increase crop quality and protect the health of the soil, environment and people [8] This is why this study, whose main aim is to improve cocoa tree productivity in the context of Swollen Shoot disease with Banzai biostimulant, is justified. It is to assess the cumulative effect of Banzai biostimulant and fertilizer on the production of cherries
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