TY - JOUR
T1 - First Report of Hirsutella thompsonii as an Entomopathogenic Fungus of Hemp Russet Mite (Aculops cannabicola) in Kentucky
AU - Ricciardi, M. Magdalena
AU - Smith, Henry
AU - Viloria, Zenaida
AU - Dixon, Edward
AU - Szarka, Desiree
AU - Pearce, Robert
AU - Gauthier, Nicole
AU - Villanueva, Raul T.
N1 - Publisher Copyright:
© 2024 The American Phytopathological Society
PY - 2024
Y1 - 2024
N2 - Hemp russet mite (HRM, Aculops cannabicola) is one of the most damaging indoor pests of hemp (Cannabis sativa). In 2021, HRM was identified in hemp research trials at the University of Kentucky. Beginning in September, large numbers of darkened (black/brown), dead HRM were observed on leaves. Fungi resembling Hirsutella thompsoniiwere isolated from symptomatic HRM. Fungal identity was confirmed by sequencing a fragment of the internal transcribed spacer (ITS) of the rDNA. To validate pathogenicity, HRM-infested hemp leaveswere inoculatedwith H. thompsonii. Infection was confirmed by day 8 of the experiment. Twenty-eight percent of the HRM in the inoculated treatment became black/brown by day 14. Considering limited options for management of HRM on indoor hemp production, further research is warranted to improve understanding of the potential use of H. thompsonii as a management tool.
AB - Hemp russet mite (HRM, Aculops cannabicola) is one of the most damaging indoor pests of hemp (Cannabis sativa). In 2021, HRM was identified in hemp research trials at the University of Kentucky. Beginning in September, large numbers of darkened (black/brown), dead HRM were observed on leaves. Fungi resembling Hirsutella thompsoniiwere isolated from symptomatic HRM. Fungal identity was confirmed by sequencing a fragment of the internal transcribed spacer (ITS) of the rDNA. To validate pathogenicity, HRM-infested hemp leaveswere inoculatedwith H. thompsonii. Infection was confirmed by day 8 of the experiment. Twenty-eight percent of the HRM in the inoculated treatment became black/brown by day 14. Considering limited options for management of HRM on indoor hemp production, further research is warranted to improve understanding of the potential use of H. thompsonii as a management tool.
KW - biocontrol
KW - cannabis
KW - entomopathogen
KW - greenhouse
KW - hemp
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U2 - 10.1094/PHP-04-23-0035-BR
DO - 10.1094/PHP-04-23-0035-BR
M3 - Article
AN - SCOPUS:85186859418
SN - 1535-1025
VL - 25
SP - 92
EP - 94
JO - Plant Health Progress
JF - Plant Health Progress
IS - 1
ER -