Curbing the threat of HLB in Texas through sustainable management of Asian citrus psyllid

The citrus industry is a vital component of Texas agriculture, but the industry faces significant threats from Huanglongbing (HLB), a lethal disease caused by Candidatus Liberibacter asiaticus (CLas), and transmitted by the Asian citrus psyllid (Diaphorina citri, ACP). ACP was first reported in the U.S. in the state of Florida and subsequently spread to all citrus-producing states, including Texas, where it was detected in 2001. To address this threat, Texas citrus growers implemented a proactive area-wide integrated management system (AIMS) which relied on coordinated dormant sprays, targeted insecticide applications during flush cycles, and continuous monitoring of ACP populations. Continued grower educational outreach and field visits were crucial in ensuring the widespread adoption of AIMS, leading to significant reductions in ACP densities in commercial groves and consequently the risks of CLas transmission. This presentation will explore the factors influencing ACP populations in Texas and the importance of a multi-pest control approach.