PestHigh Severity

Pine Engraver Beetles

Ips spp.

Specific bark beetle species within the Ips genus known for their characteristic 'engraved' gallery patterns under bark. These beetles target weakened conifers and are named for their distinctive tunneling patterns that resemble engravings in the wood surface.

Peak Season: Active during warm months with peak activity in late spring and summer. Multiple generations in favorable conditions. Overwintering occurs under bark of host trees.
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Pine engraver beetles showing characteristic bark boring damage and beetle features similar to mountain pine beetle

Identification & Symptoms

What to Look For

Characteristic curved, S-shaped, or inverted-Y galleries under bark
Engraved patterns visible when bark is removed
Multiple larval mines (3 or more) issuing from each egg pocket
Dieback on upper terminals and lateral branches
Boring dust and pitch tubes at attack sites
Crown fading and needle browning
Distinctive gallery patterns that give beetles their name

Potential Damage

Girdling through extensive gallery construction
Rapid tree mortality when populations are high
Characteristic 'engraved' damage patterns in sapwood
Transmission of blue-stain fungi
Mass attacks during outbreak conditions
Economic damage to pine forests and landscapes

Lifecycle

Usually 1-3 summer generations and 1 overwintering generation. Development speed varies with season and location. Adults, larvae, or pupae overwinter beneath bark of previously killed trees. Attack patterns can be primary (healthy trees) or secondary (stressed trees).

Professional Treatment Approach

1

Apply systemic insecticides like Imisol for prevention in high-value trees

2

Prompt removal and destruction of infested material

3

Maintain tree vigor through proper irrigation during drought

4

Avoid bark injuries that attract beetles to healthy trees

5

Monitor stress factors including site conditions and nutritional deficiencies

6

Professional assessment during outbreak conditions

Recommended Mauget Products

Imisol

Professional-grade treatment specifically effective against pine engraver beetles.

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Imicide

Professional-grade treatment specifically effective against pine engraver beetles.

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Need Professional Diagnosis?

Our certified arborists can help you accurately identify tree problems and develop an effective treatment plan using Mauget's proven injection systems.

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