Shanovich, Hailey NLisak, Sarah CLindsey, Amelia R IAukema, Brian H2023-02-012023-02-012023-02-01https://hdl.handle.net/11299/252306The period in the csv files is a placeholder for the statistical analysis. This is recognized in R. Polydrusus_sampling_data.csv: 1. Site: the field site that the data was collected at. RSMT = the University of Minnesota UMore Park in Rosemount, MN and SpC = the University of Minnesota agricultural research station on the “Saint Paul campus” 2. Year: The year of data collection 3. Date: the date of data collection 4. Genotype: the genotype of each hybrid hazelnut plant sampled for Polydrusus weevils 5. Plant: The location of each plant in the field used as a unique identifier in order to use as a random effect in analyses due to repeated sampling of each plant throughout each season and years 6. Ordinal.date: the ordinal date of each data collection date within each year 7. Spp.: The species of nonindigenous Polydrusus weevils. Impressifrons = Polydrusus impressifrons. Formosus = Polydrusus formosus 8. Sex: the sex of weevils sampled. M = male; F = female 9. Number of individuals: the number of weevils collected from each plant each sampling date Daily_temperatures_and_GDD.csv: 1. Year: The year of data collection 2. Date: the date of data collection 3. Mean.daily.temp.C: the recorded mean daily temperature in degrees Celsius from the cataloguer 4. GDD: the number of growing degrees days per date. Calculated starting 1 January of each year. We used a lower development threshold of 8.8ºC, the minimum threshold for strawberry root weevil (Otiorhynchus ovatus (L.))(Coleoptera: Curculionidae: Entiminae) which is the closest related species found to Polydrusus spp. with an established lower development threshold, being in the same subfamily 5. Accumulated.GDD: the accumulated growing degree days per date, which is the sum of the current date’s growing degree days and the cumulation of the previous dates of that year1. 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.Attribution 3.0 United Statesinsect phenologyinsect ecologyentomologyweevilforest insecthazelnutsDatasethttps://doi.org/10.13020/45d9-en03