Publications by authors named "T Popenuck"
Article Synopsis
- - In late 2022 and early 2023, CAL FIRE tree health experts assessed four maple trees in Elk Grove, California, which were in severe decline, exhibiting thinning canopies and visible bark damage due to cankers filled with fungi.
- - Laboratory analysis from the affected trees identified cultures of the fungus Cryptostroma corticale, using DNA sequencing techniques that confirmed its identity against a database of known organisms.
- - The study aimed to understand the extent of the fungal infection and the health issues affecting these exotic maple species, raising concerns about their viability in the California environment.
Article Synopsis
- The Sudden Oak Death Blitzes are annual citizen-led surveys mapping the spread of Sudden Oak Death (SOD) in northern California, which discovered possible symptoms in six rare manzanita species for the first time.
- During the studies, symptoms such as branch cankers and canopy mortality were observed, and researchers confirmed through inoculation experiments that these species can host the SOD pathogen.
- Additional manzanita species were later examined, showing varying susceptibility to the disease, with findings indicating that even low levels of spore production could lead to localized contagion, especially in wet conditions.
ABSTRACT The structure of Heterobasidion annosum populations was studied in 15 mixed-conifer sites in central and northern California. Study sites displayed mortality of white fir trees in enlarging discrete patches (mortality centers). At each site, fungal genotypes were defined by somatic compatibility tests.
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