Description
Latin Name: Ips subelongatus (Motschulsky)
Lure Active Ingredient: 2-methyl-3-buten-2-ol, (+/-)ipsdienol and (+/)ipsenol in a vial-and-coaster mesh bag.
Field Life: 45 days
Trap to Use: Panel Trap
Monitoring Strategy: In smaller stands, use one trap every 1 to 1 ½ acre. A minimum of two traps should also be used for fields of uneven topography. For larger fields (10 acres or greater) use 1-2 traps per five acres. Traps should be placed at approximately 0.5 m. Traps should be checked weekly or more frequently, depending on pest population. Check with Cooperative Extension or Master Gardener for local information and recommendations.
Cultural and Physical Control: Inspect trees for damage to bark, including egg and larval galleries, which may appear starting in early May. The common practice of cleaning bark and sealing tree wounds can prevent against significant infestation.
Distribution: Asian Russia, China, Japan, Korea, Mongolia
Hosts: Species within the Larch family
: Adults: Brown in color throughout, approximately 4.5-6.0 mm long.
Eggs: Round, pearly white in color.
Life Cycle: Adults are on the wing generally between mid-May to the end of June. Females construct egg galleries about 160-180 mm long and 3-3.5 mm wide to oviposit
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