Browsing by Subject "insect phenology"

Now showing 1 - 3 of 3
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    Distribution data of Polydrusus spp. north of Mexico and seasonal phenology of two nonindigenous Polydrusus species in Minnesota hybrid hazelnut orchards
    (2023-02-01) Shanovich, Hailey N; Lisak, Sarah C; Lindsey, Amelia R I; Aukema, Brian H; hnshanovich@gmail.com; Shanovich, Hailey N
    1. Polydrusus_sampling_data.csv: This data was compiled to examine the seasonal phenology of adult Polydrusus weevils in hybrid hazelnut orchards and examine the relative phenologies and sex-ratios between the nonindigenous species found. 2. Daily_temperatures_and_GDD.csv: This data was compiled in order to calculated accumulated growing degree days for the collected Polydrusus weevils each year. Data was collected via a datalogger at the field sites.
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    Entomological investigations in a novel agroforestry crop to the Midwestern US: Arthropod pests, their damage, distributions, and resistance factors associated with hybrid hazelnuts (Corylus americana x Corylus avellana)
    (2023-05) Shanovich, Hailey
    Hazelnuts (Corylus spp.) (Fagales: Betulaceae) are an emerging crop within the upper Midwest. New interspecific hybrid crosses between European (Corylus avellana) and American (Corylus americana) hazel species are being utilized as crops within sustainable agroecosystems. As perennial shrubs, hazels hold soil, cycle nutrients, while requiring only minimal inputs. As these plantings have developed, however, growers and researchers have noticed several insects and mites feeding on and causing damage to the plants. Over the past decade, several arthropod pests, comprising both introduced and native species, have been identified as potentially serious limitations to hazelnut production in the Upper Midwest. Depending on the arthropod pest species, however, there is either a complete lack of or extremely limited information on the species’ biology, ecology, and/or phenology. Knowledge of how these arthropod species interact with hazel plants is foundational to developing proper management. There are three major arthropod pests of concern that we have identified as economic threats to hazelnut production in the region: the hazelnut weevil (Curculio obtusus), the hazel stem borer (Agrilus pseudocoryli) and the filbert bud mite (Phytoptus avellanae). My dissertation research aims to develop pest management recommendations for the hybrid hazelnuts that will allow growers to be successful upon adopting them throughout the Upper Midwest for each of these pests individually and when considered together within an ecosystem.
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    Hazelnut and adult hazelnut weevil monitoring at Minnesota sites from 2020-2022
    (2023-07-14) Shanovich, Hailey N; Anderson, Pheylan A; Aukema, Brian H; hnshanovich@gmail.com; Shanovich, Hailey N
    This data was collected in order to determine the phenology of adult hazelnut weevils (Curculio obtusus) within interspecific hybrid hazelnut (Corylus americana x Corylus avellana) plantings in Minnesota and identify hazelnut factors that might be driving the weevils within-field abundance and infestation/damage in the crop between different hazelnut genotypes. Adult hazelnut weevil lay eggs into developing hazelnuts and their larvae then develop inside hazelnuts, devouring the edible kernel, directly impacting crop yield. Therefore, the objective was to determine when this behavior occurs in the Minnesota crop and to identify any plant-level or nut-level factors driving spatial trends in their abundance and nut infestation within the hazelnut plantings.