Fungicides obtained from plant extracts for the management of Moniliophthora roreri Cif. in Theobroma cacao L.

Resumen

Objective: The goal of this research is to develop plant extracts anddetermine their characteristics with effectiveness in the regulation of M. roreri, which can be integrated into a management plan for cocoa production in Mexico

Design/Methodology/Approach: The regulatory effect of extracts of: Pimenta dioica, Zingiber officinale, Syzygium aromaticum, Origanum vulgare, Tradescantia spathacea, and Cinnamomum zeylanicum on M. roreri, using four forms of extraction, carrying out effectiveness tests in the laboratory, and the best extracts were evaluated under field conditions

Results: The hydrolates of S. aromaticum and C. zeylanicum at 20% (v/v) were established to be efficient, recording incidences of M. roreri in cocoa fruits of 1.18% and 1.08% respectively, with 69.6% in the absolute control. In the C. zeylanicum hydrolate, 17 compounds were identified. The hydrolates of S. aromaticum, and C. zeylanicum at 20% are efficient in the management of cocoa moniliasis M. roreri.

Study Limitations/Implications: The production of extracts has specific technical needs, requires investment in producing the extracts in volume and must be made more accessible to producers.

Findings/Conclusions: The use of these extracts on M. roreri in traditional or organic production systems is technically and economically feasible.