Research Associate
Research Interests:
Developing holistic integrated pest management strategies for direct and indirect insect pests of tree fruit by incorporating the behavior, biology, and landscape ecology of pests, pathogens, and natural enemies.
Aims:
To develop biologically based mechanical and cultural control strategies for insect pests. To further the understanding of the vector biology in the X-disease pathosystem, along with the interactions between vector, host, and pathogen. To assess the acquisition and incubation period of X-disease in the leafhopper, and mechanisms influencing pathogen transmission. To incorporate this into an integrated pest management program for stone fruit production.
Current Research:
- Testing cultural controls through groundcover and tree architecture manipulation.
- Evaluating OMRI certified entomopathogenic fungi against the vectors of X-disease.
- Developing DNA preservative traps for genetic testing of vectors and statewide surveys.
- Assessing the acquisition to transmission timeframe for each vector species and the influence of varying pathogen strains.
Education
Ph.D. Entomology, 2020, Washington State University
BS, Entomology, 2014, University of Idaho
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- Gene expression profiling of Cacopsylla pyricola (Hemiptera: Psyllidae) infected with Ca. Phytoplasma pyri (Acholeplasmatales: Acholeplasmataceae) reveals candidate effectors and mechanisms of infection -(Peer Reviewed Journal)
Easterling, K.A., Marshall, A.T., Pitino, M., Walker Iii, W.B., Cooper, W.R. 2024. Gene expression profiling of Cacopsylla pyricola (Hemiptera: Psyllidae) infected with Ca. Phytoplasma pyri (Acholeplasmatales: Acholeplasmataceae) reveals candidate effectors and mechanisms of infection. Environmental Entomology. https://doi.org/10.1093/ee/nvae074.
- Using stink bug migration behavior for physical exclusion -(Peer Reviewed Journal)
Marshall, A.T., Beers, E.H. 2024. Using stink bug migration behavior for physical exclusion. Environmental Entomology. 53(3):338-346. https://doi.org/10.1093/ee/nvae025. - Cultural control methods improve management of leafhopper vector of X-disease -(Peer Reviewed Journal)
Marshall, A.T., Melton, T.D., Bishop, G., Clarke, A.E., Reyes-Corral, C., Catron, K.A., Nottingham, L.B., Northfield, T.D. 2023. Cultural control methods improve management of leafhopper vector of X-disease. Crop Protection. 175. Article 106445. https://doi.org/10.1016/j.cropro.2023.106445. - Recovery plan for X-disease in stone fruit caused by 'Candidatus Phytoplasma pruni' -(Peer Reviewed Journal)
Harper, S.J., Northfield, T.D., Nottingham, L.R., Dupont, S.T., Thompson, A.A., Sollato, B.V., Serban, C.F., Shires, M.K., Wright, A.A., Catron, K.A., Marshall, A., Molnar, C., Cooper, W.R. 2023. Recovery plan for X-disease in stone fruit caused by 'Candidatus Phytoplasma pruni'. Plant Health Progress. 24(2):258-295. https://doi.org/10.1094/PHP-02-23-0016-RP.
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