Abstract
The Asian psyllid, Diaphorina citri, is a potential problem for citrus farming in Ecuador due to the transmission of Huanlongbing, a devastating bacterial disease. Although the disease has not been reported, D. citri was detected in 2013 in Ecuador in the province of Guayas. It was observed in 2016 in the province of Manabí, on an orange jessamine tree, Murraya paniculata. Additionally, its parasitoid, Tamarixia radiata has not been referred to Manabí. To document the dispersion of the insect and parasitoid in the region, during May - December 2018, M. paniculata and citrus trees were sampled in 107 production units of Portoviejo and Santa Ana, where the phytophage and its parasitoid were detected on M. paniculata (since May 2018) and citrus only the phytophage was observed (since November 2018). Results suggest the establishment of D. citri and T. radiata on M. paniculata and its recent colonization on citrus.
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