Boll weevil - Anthonomus grandis
Effective: December 9, 2011 - December 31, 2022
Taxonomic Position: Coleoptera : Curculionidae
Pest Type: Insects
Pest Code (NAPIS): INASAHA
This pest is a member of the following surveys: Cotton
These Approved Methods are appropriate for: 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015
Pest Information
CAPS Pest Datasheet: https://download.ceris.purdue.edu/file/3119
Pest Tracker: https://pesttracker.org/pest/INASAHA
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 but damage may lead to invasion by secondary pests.
Survey
Approved Method(s)
| Method | Detail | NAPIS Survey Method |
|---|---|---|
| Trap | 28 - Boll Weevil Trap | 3001 - General Trapping Procedure |
Method Notes:
Before planning a boll weevil survey it is IMPERATIVE that you contact your PPQ Regional Cotton Program Manager to determine if your state should survey for this pest. CAPS surveys should NOT be conducted in areas that have PPQ Boll Weevil Program trapping programs.
Trap must be used with an insecticidal strip, "Boll Weevil Insecticide Strip."
Trap must be used with an insecticidal strip, "Boll Weevil Insecticide Strip."
Approved Lure(s)
| NAPIS Code | Product | Dispenser | Effectiveness | Compound(s) | 51 | Boll Weevil Lure - 4 Week | plastic square | 28 days | grandisol grandlure II grandlure III grandlure IV |
|---|
Lure Attachment:
IMPORTANT: Do not include lures for other target species in the trap when surveying for this target.
Lure Notes:
The lure is available in either a two or four week formulation; however, the four week lure is the most appropriate for CAPS surveys.
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. Samples are screened for the presence of the boll weevil. Level 1 screening for this pest requires experience sorting wood-borers and bark beetles to morpho-species. See the boll weevil datasheet in the CAPS Commodity-based Cotton Reference for a list of characters. Suspect specimens should be sent to the appropriate taxonomic experts. See the CAPS Commodity-based Cotton Reference for contact information.
Mistaken Identities:
There are four other species in the "Anthomonas grandis group": A. townsendi, A. hunteri, A. mallyi, and A. palmeri. None of these species are currently known to be present in the United States.
The similar-looking sub-species, A. grandis thurberiae, should only be of concern in surveys conducted in the Southwestern United States.
The similar-looking sub-species, A. grandis thurberiae, should only be of concern in surveys conducted in the Southwestern United States.
References
If you are unable to find a reference, contact STCAPS@usda.gov. See the CAPS Pest Datasheet for all references.