This document summarizes research on the ecology of the tomato potato psyllid (TPP) and its bacterial pathogen Candidatus Liberibacter solanacearum (CLso) which causes significant economic losses to horticulture crops in New Zealand. The research found that non-crop plants from the Solanaceae family can host all life stages of TPP and CLso throughout the year, posing challenges for surveillance and management. Studies on the feeding behaviors and development of TPP on different host plants found that the bacterial infection status and host plant species can impact these behaviors. The research aims to provide knowledge and tools to benefit growers, biosecurity agencies, and researchers seeking to manage TPP and CLso.