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TrackTrap: Model Cumulative Growing Degree-Days for Pest Monitoring

Pest monitoring is crucial, especially during the early season, to understand the distribution and the proliferation of the target pest. Raw count data from pest monitoring/traps can be coupled with environmental variables such as temperature, growing degree-day ('GDD') etc. to get useful insights about the pest phenology. This package pulls temperature data from the California Irrigation Management Information System ('CIMIS', <https://cimis.water.ca.gov>), the 'Daymet' application programming interface ('API', <https://daymet.ornl.gov>), or 'Open Meteo' ('API', <https://open-meteo.com/>) sequentially for a user-specified time period and calculates cumulative growing degree-days. Users provide pest development thresholds (lower and upper temperatures), pest of concern, and the geographic coordinates of the trap location to track emergence and phenology.

Version: 1.0.0
Depends: R (≥ 3.5)
Imports: curl, daymetr, degday, dplyr, ggplot2, httr, jsonlite, magrittr, rlang, xml2
Suggests: testthat (≥ 3.0.0)
Published: 2026-06-13
DOI: 10.32614/CRAN.package.TrackTrap
Author: Santosh Bhandari [aut, cre], Lalit Kharel [aut], Mahesh Ghimire [aut]
Maintainer: Santosh Bhandari <santoshbhandari4556 at gmail.com>
License: MIT + file LICENSE
NeedsCompilation: no
Materials: NEWS
CRAN checks: TrackTrap results

Documentation:

Reference manual: TrackTrap.html , TrackTrap.pdf

Downloads:

Package source: TrackTrap_1.0.0.tar.gz
Windows binaries: r-devel: TrackTrap_1.0.0.zip, r-release: TrackTrap_1.0.0.zip, r-oldrel: TrackTrap_1.0.0.zip
macOS binaries: r-release (arm64): TrackTrap_1.0.0.tgz, r-oldrel (arm64): TrackTrap_1.0.0.tgz, r-release (x86_64): TrackTrap_1.0.0.tgz, r-oldrel (x86_64): TrackTrap_1.0.0.tgz
Old sources: TrackTrap archive

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.