Synergism between Annonaceae botanical extracts and synthetic insecticides to Leucoptera coffeella (Guér. Ménev.) (Lepidoptera: Lyonetiidae) on coffee plants

• Grant number: 19/26144-5
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: June 01, 2020
• End date: May 31, 2021
• Field of knowledge: Agronomical Sciences - Agronomy - Plant Health
• Principal Investigator: Edson Luiz Lopes Baldin
• Grantee: Guilherme Ferreira da Silveira Filho
• Host Institution: Faculdade de Ciências Agronômicas (FCA). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil

Abstract

Coffee crop has great economic importance in the world scenario, being Brazil the largest exporter and producer. This crop is going through a global market expansion, making necessary to minimize the impasses of its production, such as the insect pest attack. Among the common insect species found in this crop, we highlight the coffee leaf miner, Leucoptera coffeella (Lepidoptera: Lyonetiidae), considered a key pest for coffee crop. Its control is intensively carried out through synthetic insecticide applications. However, the in discriminated use of this practice causes serious damage to the environment and human health, in addition to favoring the selection of insect resistant populations. Thus, the study and development of alternatives that enable efficient and more sustainable control methods becomes necessary. In this sense, the use of botanical derivatives can be considered as a promising option among integrated pest management tools. However, botanical derivatives characteristics, such as easy degradation, can make their use in the field difficult. In order to circumvent inconvenient characteristics of synthetic insecticides and botanical derivatives, the associated use of both practices has been the target of researches on synergistic effects. Thus, the present work proposes to evaluate the action of ethanolic extracts from seeds of five species of Annona spp. on L. coffeella in laboratory, semi-field - in order to choose a promising extract, and its use in the field in blend with synthetic insecticides to observe possible synergistic effect. (AU)