Alternatively, it could be used as a potential trap crop to manage psyllid and control ZC disease. This germplasm offers a good resource for further understanding ZC and psyllid resistance mechanisms, contributing to potato breeding efforts to develop ZC resistance cultivars. Further characterization of the resistant accession showed that the resistance was primarily associated with antibiosis effects due to differences in leaf trichome density and morphology of the wild accession, which could limit the psyllid feeding and oviposition. A taxonomically diverse collection of tuber-bearing Solanum species was screened one ZC-resistant accession and three ZC-tolerant accessions were identified among the 52 screened accessions. The present study investigated new sources of ZC resistance among wild Solanum species. Current management practices mainly rely on the control of the psyllid to limit the spread of CLso. Potato ZC disease poses a significant threat to potato production worldwide. Potato zebra chip (ZC) disease, associated with the uncultured phloem-limited bacterium, Candidatus Liberibacter solanacearum ( CLso), is transmitted by the potato psyllid Bactericera cockerelli. 6Institute for Advancing Health Through Agriculture, Texas A&M AgriLife, College Station, TX, United States.5Department of Plant Pathology & Microbiology, Texas A&M University, College Station, TX, United States.4Department of Entomology, Texas A&M University, College Station, TX, United States.3Department of Horticultural Sciences, Texas A&M University, College Station, TX, United States.2Department of Agriculture, Agribusiness, and Environmental Sciences, Texas A&M University-Kingsville, Weslaco, TX, United States.1Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States. Avila 1,3, Maria Isabel Vales 3, Freddy Ibanez 1,4 and Kranthi K. Damaj 1, Sonia Irigoyen 1, Veronica Ancona 2, Carlos A. Victoria Mora 1 †, Manikandan Ramasamy 1 †, Mona B.
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