Location: Emerging Pests and Pathogens Research
Title: Phenology and voltinism of the ambrosia beetle Anisandrus maiche in central New YorkAuthor
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Submitted to: Entomological Society of America Annual Meeting
Publication Type: Abstract Only Publication Acceptance Date: 8/14/2024 Publication Date: 8/30/2024 Citation: Milbrath, L.R., Biazzo, J. 2024. Phenology and voltinism of the ambrosia beetle Anisandrus maiche in central New York. Entomological Society of America Annual Meeting. https://entomology2024.eventscribe.net/fsPopup.asp?PresentationID=1470794&mode=presInfo. Interpretive Summary: Technical Abstract: Ambrosia beetles construct galleries in the sapwood of a wide variety of stressed woody hosts where they culture symbiotic fungi as food for their offspring. The introduced Asian Anisandrus maiche (Coleoptera: Curculionidae) was first recorded in 2005 in Pennsylvania and has spread to several additional states and into Canada. We first trapped A. maiche in central New York in 2021, but it likely had been present for several years. It can be abundant in traps and shares similarities with the known pest Xylosandrus germanus. Therefore, it is considered a potential new pest. Little has been reported on its biology in North America, so we conducted a two-year study on its phenology and voltinism by rearing beetles outdoors in wood bolts. Unlike other studied species that overwinter as adults, A. maiche overwinters as mature 3rd instars (male and female) inside their natal galleries. Pupation and adult eclosion occur in May. After mating with their male siblings, females disperse to initiate new galleries. Two flights occur from late May-July (overwintered generation) and July-September (first summer generation). Two generations occur each year. Additional information on the duration of individual generations over two years, brood sizes and the phenology of brood development will be presented |
