Evaluación de aceites vegetales ozonizados en el control de sigatoka negra en una plantilla de musa aaa.

Abstract

This research focuses on the control of Black Sigatoka (Mycosphaerella fijiensis) in banana plantations, a disease that requires the continuous use of fungicides and cultivation practices. Due to its high degree of virulence, preventive measures are centered on the efficient management of cultural activities and constant monitoring of the disease's progression. To achieve this, early warning charts are employed to determine the optimal strategy for the annual application of fungicides, with the aim of maintaining disease levels below the threshold that affects productivity. After a four-week period from the initial application of the products to the leaves, which were moved from positions 1 and 2 to positions 12 and 13, significant results were obtained regarding the average infection in different treatments. At the end of this phase, average infection values were observed in the treatments: T1 (palm) with 0.42, T2 (neem) with 0.35, T3 (sunflower) with 0.31, T4 (governor) with 0.30, T5 (Mancozeb) with 0.28, and T6 (control group) with 0.35. Additionally, the disease severity was assessed 28 days after the administration of the treatments, obtaining different scores in the groups: T1 (palm) with 8.48, T2 (neem) with 6.67, T3 (sunflower) with 6.36, T4 (governor) with 6.06, T5 (Mancozeb) with an average score of 5.76, and the control group, T6, with 6.67. These results provide a clearer perspective on the disease intensity in relation to the different treatments applied.