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 derived environmental variables such as growing degree-day ('GDD') to get useful insights about the pest phenology. This package pulls temperature data from the 'Daymet' application programming interface ('API', <https://daymet.ornl.gov>), or 'Open-Meteo' ('API', <https://open-meteo.com/>) or manual user-supplied CSV file from the California Irrigation Management Information System ('CIMIS', <https://cimis.water.ca.gov>), for a user-specified time period and calculates cumulative growing degree-days. Users provide intended date range, pest of concern, and the geographic coordinates of the trap location to track pest emergence and phenology throughout the growing season.

Version:	1.0.1
Depends:	R (≥ 3.5)
Imports:	daymetr, dplyr, degday, ggplot2, httr, magrittr, utils, rlang
Suggests:	testthat (≥ 3.0.0), knitr, rmarkdown
Published:	2026-08-20
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
Vignettes:	Using a manually downloaded CIMIS CSV with TrackTrap (source, R code)

Downloads:

Package source:	TrackTrap_1.0.1.tar.gz
Windows binaries:	r-devel: TrackTrap_1.0.0.zip, r-release: TrackTrap_1.0.1.zip, r-oldrel: TrackTrap_1.0.1.zip
macOS binaries:	r-release (arm64): TrackTrap_1.0.1.tgz, r-oldrel (arm64): TrackTrap_1.0.1.tgz, r-release (x86_64): TrackTrap_1.0.1.tgz, r-oldrel (x86_64): TrackTrap_1.0.1.tgz
Old sources:	TrackTrap archive

Linking:

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