Pine Needle Scale Pheno Forecast, Contiguous United States, 2016 - Current Year

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 crawler emergence in pine
needle scale (<i>Chionaspis pinifoliae</i>) at 298-448F growing degree days
(base 50F, start date: March 1, simple average 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). Pine needle
scale insects pierce pine needles and consume sap. Treatments are often
applied when crawlers emerge from their eggs and before they develop
their protective waxy coating.<br><br><i>For all inquiries regarding this dataset, please contact the USA-NPN. This data is subject to the USA-NPN's Data Use Policy.</i>