Óleo essencial de citros no controle de Diaphorina citri Kuwayama

Abstract

Previous studies have demonstrated the effectiveness of citrus essential oils (EOs) in pest control due to the effects of their components. Thus, the present study aimed to evaluate the efficacy of essential oils extracted from different citrus species, such as lemon (Citrus limon), orange (Citrus sinensis), and Tahiti lime (Citrus latifolia), in controlling the citrus psyllid (Diaphorina citri), the main vector of the disease Huanglongbing (HLB). The focus of this study was to investigate the action of these EOs at different concentrations (0.0%, 0.5%, 1.5%, 3%, and 6%) and modes of application (preventive and curative) against the psyllid. The experiment consisted of two trials, both conducted in a greenhouse. The first trial used EOs extracted from the Eureka and Amber lemon genotypes, while the second evaluated the EOs from orange and Tahiti lime, provided by Cisol do Brasil®. The trials were carried out in a completely randomized design with three replications, in a factorial scheme of 2x5x2 (two genotyp