Effect of Baccharis dracunculifolia extract in the control of the coffee red mite

Abstract

The red coffee mite, Oligonychus ilicis, is a phytophage that damages coffee leaves by piercing their cells and consuming the cellular contents. This behavior impairs photosynthesis, and healthy growth of coffee plants. This study aimed to evaluate the acaricidal efficacy of the Baccharis dracunculifolia plant extract at various concentrations to control the red spider mite that affects coffee trees. The extract was applied directly to the leaves of Coffea sp. using the Potter's Tower methodology. Seven concentrations were tested, including the control, with seven repetitions each, containing ten mites per repetition. The extract of B. dracunculifolia showed acaricidal activity against adult mites of O. ilicis, and the analyses revealed consumption levels of phenolics, flavonoids, and tannins in the extract.

Effect of Mammea americana Aqueous Extract on the Control of the Coffee Red Spider Mite

“…O. ilicis has phytophagous habits and lives under the surface of the leaves, where it's possible to observe a thin web woven by the mites (Andrade et al, 2020;Silveira et al, 2020). The mites usually attack the tillage in thickets, piercing the epidermis and the mesophyll cells to absorb the cell contents, reducing until 50 % of the plant's photosynthetic and causing the leaves darkening and curling (Carducci et al, 2019;Kumari & Gond, 2020;Silveira et al, 2020;Magnago et al, 2023). The O. ilicis attack is favored by long periods of drought and the complete life cycle varies between 11 and 17 days (Fanton & Queiroz, 2020).…”

“…Usually, the most used management method is chemical control, but when made incorrectly it can increase the mite's populational level, develop resistant populations, and eliminate populations of natural enemies (Liburd et al, 2019;Andrade et al, 2020;Piffer et al, 2023). In this context, the use of products based on secondary metabolites extracted from plants DELOS: Desarrollo Local Sostenible, Curitiba, v.17, n.54, p. 01-20, 2024 represents a more sustainable path to control arthropod pests (Toledo et al, 2018;Babaz et al, 2021;Gomes et al, 2023;Magnago et al, 2023).…”