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Plant-Insect Ecosystems

Section Symposium

Masters of Manipulation: Plant–Pathogen–Vector–Symbiont Interactions and Novel Management Techniques

Landscape of plant hosts, pathogen and vector at zebra chip´s first historical detection site: Implications for sustainable management

Tuesday, November 15, 2022

2:48 PM – 3:03 PM PT

Location: Vancouver Convention Centre, Meeting Room 202

Presenting Author(s)

SS

Sergio René Sánchez

Research Professor
Universidad Autónoma Agraria Antonio Narro
Saltillo, Coahuila de Zaragoza, México

Co-author(s)

CD

Carolina Delgado-Luna

Universidad Autónoma Agraria Antonio Narro
Saltillo, Coahuila de Zaragoza, México
Rodney Cooper

Research Leader/Research Entomologist
USDA-ARS
Wapato, Washington

Zebra chip is a grave disease of potato. The causal agent, Liberibacter solanacearum (Lso) is vectored by the potato/tomato psyllid, Bactericera cockerelli. Lso also affects tomato and pepper. Historically, zebra chip was first detected on commercial potatoes near Saltillo, Mexico, where it still causes severe losses. The ecology of the pathosystem in this growing area remains largely unknown. We examined close to 1000 plant samples from this area over two years, to elucidate the presence of Lso in hosts and vectors, the distribution patterns of B. cockerelli eggs and nymphs, and disease prevalence. We also review the implications for disease management.