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Lilac Borer Pheno Forecast, Contiguous United States, 2016 - Current Year
datasetposted on 2021-04-22, 19:30 authored by USA National Phenology Network
Pheno Forecast maps predict key life cycle stages in a range of species to improve conservation and management outcomes. For insect pest species, Pheno Forecasts are based on published growing degree day (GDD) thresholds for key points in species life cycles. These key points typically represent life cycle stages when management actions are most effective. These maps are updated daily and available 6 days in the future. We forecast adult emergence in lilac borer (Podosesia syringae) at 500-1300F growing degree days (base 50F, start date: January 1, double sine GDD method). Forecasts are available for the current and prior year in the USA-NPN Visualization Tool (https://www.usanpn.org/data/visualizations) and 2016-present through USA-NPN Geo Web Services (available upon request). Adult lilac borers overwinter in the heartwood of trees, then emerge in early summer. Certain control measures are most effective when adults emerge.
For all inquiries regarding this dataset, please contact the USA-NPN. This data is subject to the USA-NPN's Data Use Policy.