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Magnolia Scale Pheno Forecast, Contiguous United States, 2016 - Current Year

dataset
posted on 22.04.2021, 19:19 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. 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). We forecast crawler emergence in magnolia scale (Neolecanium cornuparvum) at 1938F growing degree days (base 50F, start date: January 1, double sine GDD method). Crawlers emerge after hatching internally from adults in late summer into early fall. Treatments are often applied when crawlers emerge from their eggs and before they develop their protective waxy coating.



For all inquiries regarding this dataset, please contact the USA-NPN. This data is subject to the USA-NPN's Data Use Policy.

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