Golden twin spot moth - Chrysodeixis chalcites
Effective: January 1, 2019
Taxonomic Position: Lepidoptera : Noctuidae
Pest Type: Insects
Pest Code (NAPIS): ITBCQGA
This pest is a member of the following surveys: Solanaceous Hosts, Soybean
These Approved Methods are appropriate for: 2024, 2023, 2022, 2021, 2020, 2019
Pest Information
CAPS Pest Datasheet: https://download.ceris.purdue.edu/file/3027
Pest Tracker: https://pesttracker.org/pest/ITBCQGA
Hosts Identified in the CAPS Host Matrix:
Bean, fresh; Potato; Soybean; Tomato
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 |
|---|---|---|
| Trap | 18 - Plastic Bucket Trap | 3001 - General Trapping Procedure |
Trap Spacing:
When trapping for more than one species of moth, separate traps for different moth species by at least 20 meters (65 feet).
Method Notes:
Climate Suitability Map
A Climate suitability map is now available. This survey should only be considered in the states with appropriate climate conditions and suitable hosts for this moth.
The map was produced by the SAFARIS Team. SAFARIS is a modeling framework that enables PPQ to quickly respond to emergencies, efficiently survey for pests, and assess potential pest impacts by collecting critical geospatial data and developing predictive models. SAFARIS is developed and maintained by the NC State University, Center for Integrated Pest Management (CIPM) with support from the PPQ-S&T Plant Pest Risk Analysis (PPRA) Laboratory.
The SAFARIS team used a climate suitability model for golden twin spot moth occurrence in the continental United States to support CAPS survey planning. The model predicts the suitability of an area for box tree moth occurrence based on the likelihood of favorable climate conditions for the pest occurring using tools and data within SAFARIS. The detailed method used in this assessment is described here.
Plastic Bucket Trap Protocol
04/23/18: For negative data reporting for the 2019 survey season and onward, the approved method for survey is the Chrysodeixis chalcites Lure used with the plastic bucket trap only. Wing traps are no longer approved for use in Chrysodeixis chalcites surveys. The glue used in wing trap kits has been found to damage samples, making screening and identification difficult and time consuming. Studies support the use of plastic bucket traps for C. chalcites early detection surveys.
Mesh screens are now available for purchase through IPHIS survey supply. Product name: Plastic Bucket Traps, Mesh Screen.
07/21/17: Sweep net sampling is approved for negative data reporting from Michigan only. Michigan is employing sweep net sampling to target the larval life stage to determine if adult detections represent an established breeding population within the state or accidental migrants from an adjacent population present in Canada. Wing trap kits (paper or plastic) and the plastic bucket trap remain the only approved traps for all other states. Â
Please note, starting in the 2018 survey season, plastic bucket traps will be the primary approved trap for Chrysodeixis chalcites surveys. The glue used in wing trap kits has been found to damage samples, making screening and identification difficult and time consuming. Studies support the use of plastic bucket traps for C. chalcites early detection surveys. Wing traps are approved for use through 2018. CAPS will begin phasing out wing trap kits, so it is advised that you switch to plastic bucket traps exclusively by 2018, if possible.
For negative data reporting for the 2017 and 2018 survey seasons, you may use the approved lure: Chrysodeixis chalcites Lure used with one of the approved traps: 1) wing trap kit, paper, 2) wing trap kit, plastic, or 3) plastic bucket trap. In 2019, the approved method for survey will be Chrysodeixis chalcites Lure used with the plastic bucket trap only.
05/20/14: The plastic bucket trap was added as an additional approved trap.
A Climate suitability map is now available. This survey should only be considered in the states with appropriate climate conditions and suitable hosts for this moth.
The map was produced by the SAFARIS Team. SAFARIS is a modeling framework that enables PPQ to quickly respond to emergencies, efficiently survey for pests, and assess potential pest impacts by collecting critical geospatial data and developing predictive models. SAFARIS is developed and maintained by the NC State University, Center for Integrated Pest Management (CIPM) with support from the PPQ-S&T Plant Pest Risk Analysis (PPRA) Laboratory.
The SAFARIS team used a climate suitability model for golden twin spot moth occurrence in the continental United States to support CAPS survey planning. The model predicts the suitability of an area for box tree moth occurrence based on the likelihood of favorable climate conditions for the pest occurring using tools and data within SAFARIS. The detailed method used in this assessment is described here.
Plastic Bucket Trap Protocol
04/23/18: For negative data reporting for the 2019 survey season and onward, the approved method for survey is the Chrysodeixis chalcites Lure used with the plastic bucket trap only. Wing traps are no longer approved for use in Chrysodeixis chalcites surveys. The glue used in wing trap kits has been found to damage samples, making screening and identification difficult and time consuming. Studies support the use of plastic bucket traps for C. chalcites early detection surveys.
Mesh screens are now available for purchase through IPHIS survey supply. Product name: Plastic Bucket Traps, Mesh Screen.
07/21/17: Sweep net sampling is approved for negative data reporting from Michigan only. Michigan is employing sweep net sampling to target the larval life stage to determine if adult detections represent an established breeding population within the state or accidental migrants from an adjacent population present in Canada. Wing trap kits (paper or plastic) and the plastic bucket trap remain the only approved traps for all other states. Â
Please note, starting in the 2018 survey season, plastic bucket traps will be the primary approved trap for Chrysodeixis chalcites surveys. The glue used in wing trap kits has been found to damage samples, making screening and identification difficult and time consuming. Studies support the use of plastic bucket traps for C. chalcites early detection surveys. Wing traps are approved for use through 2018. CAPS will begin phasing out wing trap kits, so it is advised that you switch to plastic bucket traps exclusively by 2018, if possible.
For negative data reporting for the 2017 and 2018 survey seasons, you may use the approved lure: Chrysodeixis chalcites Lure used with one of the approved traps: 1) wing trap kit, paper, 2) wing trap kit, plastic, or 3) plastic bucket trap. In 2019, the approved method for survey will be Chrysodeixis chalcites Lure used with the plastic bucket trap only.
05/20/14: The plastic bucket trap was added as an additional approved trap.
Approved Lure(s)
| NAPIS Code | Product | Dispenser | Effectiveness | Compound(s) | 8 | Chrysodeixis chalcites Lure | rubber septum | 28 days | Z7-12Ac Z9-14Ac Z9-12Ac |
|---|
Lure Attachment:
IMPORTANT: Do not include lures for other target species in the trap when surveying for this target.
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: Identification of Chrysodeixis adults (chalcites or eriosoma) requires dissection of the male genitalia; use Passoa, 1995, as an aid. Molecular analysis is required for identification at the species level.
Mistaken Identities:
Present in U.S.: Pseudoplusia includens
Not present in U.S.: Chrysodeixis acuta
Not present in U.S.: Chrysodeixis acuta
References
- Passoa, S. 1995. Male genitalia of Chrysodeixis chalcites.
- Passoa, S. and T. Gilligan. 1995. USDA-APHIS-PPQ-PestAlert: Chrysodeixis chalcites (Esper) (Lepidoptera: Noctuidae) Golden Twin Spot. Entomological Supplement to Identifier's Notes of Interest Number 1.
If you are unable to find a reference, contact STCAPS@usda.gov. See the CAPS Pest Datasheet for all references.