Large white butterfly - Pieris brassicae
Effective: July 19, 2011 - December 31, 2020
Taxonomic Position: Lepidoptera : Pieridae
Pest Type: Insects
Pest Code (NAPIS): ITBJAKA
These Approved Methods are appropriate for: 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012
Pest Information
CAPS Pest Datasheet: https://download.ceris.purdue.edu/file/3078
Pest Tracker: https://pesttracker.org/pest/ITBJAKA
Human and Animal Pathogens Transmitted:
Not known to transmit any human or animal pathogens.
Pest Pathogens and Organisms Vectored:
Not known to vector any pathogens or other associated organisms.
Survey
Approved Method(s)
| Method | Detail | NAPIS Survey Method |
|---|---|---|
| Visual | Visual. | 3031 - General Visual Observation |
| Specimen Collection Sample | Sweep net sampling | 3013 - General Specimen Collection Sample |
Trap Spacing:
When trapping for more than one species of moth, separate traps for different moth species by at least 20 meters (65 feet).
Survey Recommendations
The following are recommendations for executing the survey using the approved methods for pest surveillance. The recommendations are developed through literature review and consultation with subject matter experts.
Key Diagnostic or Identification
Approved Method(s)
ID/Diagnostic:
Morphological. Looks similar to the native species, P. rapae, but much larger (wingspan of 63 mm versus 48 mm). P. rapae males have a black spot on the forewing. Caterpillars of P. brassicae and P. rapae can be easily distinguished as their colorings are distinctively different.
Mistaken Identities:
Superficially, P. rapae (present in U.S.).
References
If you are unable to find a reference, contact STCAPS@usda.gov. See the CAPS Pest Datasheet for all references.