Not known to transmit any human or animal pathogens.
When grapes are attacked by larvae close to harvesting, juice leakage can lead to rot by secondary pathogens which can reduce wine quality. Grape grey mold can increase with high population densities of C. gnidiella on grape
Approved Method(s)
| Method | Detail | NAPIS Survey Method |
|---|---|---|
| Trap | 18 - Plastic Bucket Trap | 3001 - General Trapping Procedure |
| Trap | 22 - Wing Trap Kit, Paper | 3001 - General Trapping Procedure |
| Trap | 27 - Wing Trap Kit, Plastic | 3001 - General Trapping Procedure |
| Trap | 51 - All-green bucket trap | 3001 - General Trapping Procedure |
The tri-colored bucket trap is also known as the unitrap. It has a green canopy, yellow funnel, and white bucket and is used with a dry kill strip. For instructions on using the trap, see the Plastic Bucket Trap Protocol. Research on related moths has shown tri-colored bucket traps and all-green bucket traps are both able to capture moths, but tri-colored bucket traps are more effective. All-green bucket traps may be used in areas where tri-colored bucket traps are deemed unsuitable by surveyors. Mesh screens are now available for purchase through IPHIS survey supply. Product name: Plastic Bucket Traps, Mesh Screen.
Both the wing trap and plastic bucket trap are approved traps for this species. The wing trap is available in a plastic or paper version; either type may be used for this target.
Approved Lure(s)
| NAPIS Code | Product | Dispenser | Effectiveness | Compound(s) |
|---|---|---|---|---|
| 61 | Cryptoblabes gnidiella Lure | rubber septum | 28 days | Z11-16Ald Z13-18Ald |
IMPORTANT: Do not include lures for other target species in the trap when surveying for this target.
Survey Recommendations
A Likelihood of Establishment Map is now available. This survey should only be considered in the states with appropriate conditions and suitable hosts for this insect. 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 PPQ PPRA.
Approved Method(s)
Larvae could be confused with larvae of the carob moth (Ectomyelois ceratoniae). A diagnostic comparison between the two pests can be found in Avidov and Gothilf (1960). Pre-imaginal stages of Lobesia botrana and C. gnidiella can look similar. Tio et al. (1994) give characteristics to distinguish the two larval species.
- Avidov, Z. and S. Gothilf. 1960. Observations on the honeydew moth (Cryptoblabes gnidiella Milliere) in Israel. Ktavim, 10:109-124.
- Neunzig, H. H. 1986. The Moths of America North of Mexico. Fascicle 15.2. Pyraloidea, Pyralidae (Part). The Wedge Entomological Research Foundation.
- Solis, M.A. 2006. Key to selected Pyraloidea (Lepidoptera) larvae intercepted at U.S. ports of entry: revision of Pyraloidea in 'Keys to some frequently intercepted lepidopterous larvae' by Weisman 1986. 58 pp.
- Tio, R. del, R. Ocete, and M. E. Ocete. 1994. Practical indications for differentiating preimaginal stages of Lobesia botrana (Denis and Schiffermuller, 1775) (Lepidoptera: Tortricidae) and Cryptoblabes gnidiella (Milliere, 1867) (Lepidoptera: Pyralidae), two vine pests in Jerez, Spain. Sociedad Hispano-Luso-Americana de Lepidopterologia (SHILAP) 22(86):119-125.
If you are unable to find a reference, contact STCAPS@usda.gov. See the CAPS Pest Datasheet for all references.