Cooper, W. Rodney


Publications
15

Acquisition and Transmission of ‘Candidatus Liberibacter solanacearum’ Differs Among Wolbachia-Infected and -Uninfected Haplotypes of Bactericera cockerelli

Citation
Cooper et al. (2023). Plant Disease 107 (8)
Names
“Liberibacter solanacearum”
Abstract
‘Candidatus Liberibacter solanacearum’ (Lso) causes disease symptoms and economic losses in potato, tomato, and other solanaceous crops in North America. Lso is transmitted to plants by the potato psyllid, Bactericera cockerelli, which occurs as distinct haplotypes named western, central, and northwestern that differ in the presence or absence of the bacterial endosymbiont, Wolbachia. Previous work showed that all three vector haplotypes can transmit Lso, but it was not clear whether acquisitio

Recovery Plan for X-Disease in Stone Fruit Caused by ‘Candidatus Phytoplasma pruni’

Citation
Harper et al. (2023). Plant Health Progress
Names
Ca. Phytoplasma pruni
Abstract
Stone fruits are a multibillion-dollar industry for the United States and Canada, one that has repeatedly suffered significant economic losses due to outbreaks of the X-disease phytoplasma (‘ Candidatus Phytoplasma pruni’) over the last century. Orchards and entire production areas have been abandoned, with corresponding losses to growers, fruit packers, and consumers. The most recent outbreak, in the U.S. Pacific Northwest, resulted in an estimated $65 million (USD) loss in revenue between 201

‘Candidatus Liberibacter solanacearum’ Infection of Physalis ixocarpa Brot. (Solanales: Solanaceae) in Saltillo, Mexico

Citation
Reyes Corral et al. (2021). Plant Disease 105 (9)
Names
“Liberibacter solanacearum”
Abstract
The potato psyllid Bactericera cockerelli (Šulc) (Hemiptera: Triozidae) is a pest of solanaceous crops (order Solanales), including potato (Solanum tuberosum L.) and tomato (S. lycopersicum L.). Feeding by high populations of nymphs causes psyllid yellows while adults and nymphs are vectors of the plant pathogen ‘Candidatus Liberibacter solanacearum’. Foliar symptoms that were consistent with either ‘Ca. L. solanacearum’ infection or psyllid yellows were observed in 2019 on tomatillo (Physalis

Growth and Yield Performance of Solanum tuberosum Grown from Seed Potatoes Infected with ‘Candidatus Liberibacter solanacearum’ Haplotypes A and B

Citation
Swisher Grimm et al. (2020). Plant Disease 104 (3)
Names
“Liberibacter solanacearum”
Abstract
Zebra chip (ZC) disease of potato (Solanum tuberosum) is associated with infection by ‘Candidatus Liberibacter solanacearum’ (Lso). Two haplotypes of Lso—A and B—occur in the United States. Lso haplotype B is more virulent than haplotype A, causing greater disease incidence in tubers, more severe symptoms, and greater loss in tuber yield. This study assessed whether tubers from infected plants generate new infected plants the following year. The effects of both Lso haplotypes A and B on tuber r