The maps available in 2019 feature a greater number of
legend categories than the original maps, providing more
nuanced information regarding the imminence of the
event of interest. Another change is that the maps now
depict the status of each pest's life cycle stage, rather
than reporting on "time to treat." This leaves the decision
about if and when to treat for insect pests in your hands.
Thank you for your input so far! You're invited to help
improve the maps even further. The Pheno Forecast map
products are continually being improved, and your input
on their performance in your area is very valuable. Please
share your thoughts for species to add or enhancements
to make at www.usanpn.org/phenoforecastsurvey.
Report your observations of pest insect
activity through Nature's Notebook, the
plant and animal phenology observing
program of the USA-NPN.
Who is the USA National Phenology Network?
Funded primarily by the U.S. Geological Survey, the USA
National Phenology Network is a national-scale consortium of
individuals and organizations that collects, stores, and shares
phenological data, value-added data products, and infor-
mation to advance science and to support natural resource
decision-making across a variety of spatial and temporal
scales. The Network delivers free and readily available phe-
nological data, connects researchers studying how species
respond to climate change with managers who need this
information to inform adaptive management, and creates a
diverse community of stakeholders. The USA-NPN also hosts
Nature's Notebook, a plant and animal phenology observa-
tion program suitable for natural resource managers as well
as nature enthusiasts of nearly all ages and skill levels.
Theresa Crimmins is the Assistant
Director of the USA National
Phenology Network's National
Coordinating Office. She has written
multiple articles for City Trees about
techniques for using phenology to
better time treatments for urban
forest insect pests.
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