Boll weevil - Anthonomus grandis
EEffective: December 9, 2011 - December 31, 2022
Resources:
Pest Tracker
CAPS Pest Datasheet
Screening Aids:
Taxonomic Position:
Coleoptera : Curculionidae
Pest Type:
Insects
Pest Code (NAPIS):
INASAHA
This pest is a member of the following lists:
| Cotton |
|---|
These Approved Methods are appropriate for:
2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015
Human and Animal Pathogens Transmitted:
Not known to transmit any human or animal pathogens.
Plant 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 | Product Name / Instructions | 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 Name | Dispenser | Effectiveness | Compound(s) |
|---|---|---|---|---|
| 51 | Boll Weevil Lure - 4 Week | plastic square | 28 days |
grandisol grandlure II grandlure III grandlure IV |
Lure Placement:
Do not include lures for other target species in the trap when trapping 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.
Identification
ID/Diagnostic: Morphological
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.