Pine-tree lappet - Dendrolimus pini
EEffective: March 27, 2019
Taxonomic Position:
Lepidoptera : Lasiocampidae
Pest Type:
Insects
Pest Code (NAPIS):
ITAUAOA
This pest is a member of the following lists:
These Approved Methods are appropriate for:
2024, 2023, 2022, 2021, 2020, 2019
Major Hosts identified in the Host Matrix:
Pine
This list includes important economic or environmental hosts but does not represent all major hosts of the pest. Check CAPS pest datasheet for complete list of hosts.
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.
Survey
Approved Method(s):
Method |
Product Name / Instructions |
NAPIS Survey Method |
Trap |
9 - Milk Carton Trap
|
3001 - General Trapping Procedure |
Trap Spacing and Placement: When trapping for more than one species of moth, separate traps for different moth species by at least 20 meters (65 feet).
Method Notes:
6/17/19: The instructions for trap modification have been updated and expanded to include pesticide strip and lure placement, funnel insert modification, and sample collection. See "Guidance for modified milk carton trap with funnel insert" in References section.
3/27/19: The milk carton funnel insert is in stock at the survey supply warehouse. Milk carton funnel inserts are required for Dendrolimus pini (Pine-tree lappet) and D. sibiricus (Siberian silk moth) survey. Note that the rain shield or cap of the milk carton trap makes inserting and removing the funnel from the top of the trap difficult. Consider inserting the funnel through the bottom of the trap. This is also the preferred way to check traps. The funnels are reusable, please use for multiple years.
Supply Product Name in the IPHIS Survey Supply Ordering System: Milk Carton Funnel Insert
2/13/19: Starting in the 2019 survey season, modified milk carton traps must be used in combination with the funnel insert. Modified milk carton traps used without the plastic funnel inserted are ineffective for Dendrolimus targets. Without the funnel, the moths are not contained, easily escaping through the large entry ports (2.5 cm wide x 3 cm high), or are not held long enough for adequate exposure to the killing agent, a DDVP strip.
Approved Lure(s):
NAPIS Code |
Product Name |
Dispenser |
Effectiveness |
Compound(s) |
11 |
Dendrolimus pini - Dendrolimus sibiricus Lure |
rubber septum |
28 days |
Z5E7-12Ald
Z5E7-12OH
butylated hydroxytoluene
Tinuvin
|
Lure Notes:
9/14/17: The lure for Dendrolimus pini, Dendrolimus pini - Dendrolimus sibiricus Lure, is also effective for Dendrolimus sibiricus. If Dendrolimus pini is listed as a survey target in a work plan, then Dendrolimus sibiricus must also be listed in the work plan.
The BHT (butylated hydroxytoluene) and tinuvin are stabilizers. The BHT is an anti-oxidant and the tinuvin is a light-stabilizer.
Identification
ID/Diagnostic: Morphological
Morphological. Genitalia dissection is required to get to the genus level. Identification to species level requires confirmation by Lepidoptera specialist. For larvae, use Passoa (2007); for adults, use Passoa (2009).
Mistaken Identities:
Dendrolimus pini may be confused with other Dendrolimus species (there are no Dendrolimus species present in the U.S.) or other lasiocampids, including multiple species in the genus Gloveria, which occur in the U.S. Dendrolimus pini may be differentiated from Gloveria by dissecting the male genitalia (Passoa, 2009). The valve of Dendrolimus pini and D. sibiricus have two projections, the smaller one either 1/5 or 3/4 as long as the larger one (Passoa, 2009). The valve of Gloveria have a single projection (Passoa, 2009).