Publications by authors named "Laura A Miles"
Oak wilt, caused by the fungal pathogen , spreads via root grafts and insect vectors, threating oaks ( spp.) and chestnuts ( spp.) in the United States.
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- In summer 2021, a 20-year-old 'Colossal' chestnut tree in Michigan declined rapidly, and by 2023, 26 nearby trees showed similar symptoms, indicating possible root-graft transmission of a pathogen.
- Symptoms included wilting and bronzing leaves, progressing to tree death in about 10 days, with some trees showing discoloration in the sapwood but no fungal mats.
- Pathogen identification involved molecular techniques like nested PCR, confirming a specific strain, which was used to infect chestnut seedlings in a greenhouse; symptoms mirrored those seen in the declining trees.
In July of 2020, a hop (Humulus lupulus L.) grower in Berrien County, Michigan submitted 'Chinook' leaf samples to MSU Plant & Pest Diagnostics. The leaves were covered in small, tan colored lesions, with a small chlorotic halo with an approximate diameter of 5 mm.
View Article and Find Full Text PDFIn July 2020, a 3-year-old 'Envoy' northern highbush blueberry bush (Vaccinium corymbosum L.) from a commercial farm in Van Buren County, Michigan was submitted to the Plant & Pest Diagnostics laboratory at Michigan State University. Field disease assessments across the 2-acre planting were an incidence of 2-5% and a severity of 50-100%.
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