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Douglas-Fir Beetle

Douglas-fir beetle, Dendroctonus pseudotsugae Hopk.

Douglas-fir beetle
 

The Douglas-fir beetle (Dendroctonus pseudotsugae Hopk.) infests and kills Douglas-fir throughout most of its range in western United States, British Columbia and Mexico.

Occasionally western larch trees are infested when growing among Douglas-fir under attack. Attacks in standing larch are always unsuccessful, while those in freshly felled larch are usually successful and brood emergence is equivalent to that in Douglas-fir.

Douglas-fir beetles normally kill small groups of trees, but during outbreaks 100 tree groups are not uncommon. Losses can be devastating during periodic outbreaks, such as four that occurred in western Oregon and Washington from 1950 through 1969, during which 7.4 billion board feet of timber were killed. Outbreaks in standing trees range from 2 to 4 years. Those of longest duration coincide with periods of drought.

 

 

 

 
RESOURCES:

Douglas-fir beetle USFS FIDL #5 Douglas-fir Beetle USFS FIDL #5 
Wood Boring Insects of Trees & Shrubs Wood Boring Insects of Trees & Shrubs

 

FAQ

  • Preventative Treatments:
    Preventative Spraying (Permethrin, Bifenthrin, Carbaryl), Pheromone Repellents (MCH Bubble Caps/Flakes), Tree Baiting, Pheromone Traps & Lures, ODC Colloidal Chitosan, Stand Thinning
  • Post Attack Treatments:
    Removal of Infested Trees

 

 

 


 

 

MCH Disrupt Micro–Flake Fir & Spruce Beetle Repellent

MCH Disrupt Micro–Flake Bark Beetle Pheromone Repellent Flakes are an effective management tool for certain bark beetles on various tree species. MCH is an anti-aggregation pheromone that when applied in the Micro-Flake form can protect susceptible host trees from infestation by Douglas-fir beetle.

FREE US Shipping
From $124.95

MCH Douglas-fir and Spruce Beetle Repellent, Bulk

MCH Douglas-fir Beetle Repellent uses MCH – a naturally occurring anti-aggregation pheromone of the Douglas-fir beetle to protect living trees from attack by spruce and Douglas-fir beetles. It is also used to prevent the build-up of populations on logs, stumps, and fallen trees. MCH sends a message that the tree is full and that beetles should look elsewhere for a suitable host.

This Product is Currently Being Manufactured for a March 1, 2018 Ship Date

MCH Bubble Cap - Bulk qty. Min. Order 10 pcs.

FREE US Shipping
From $2.00

Astro Termiticide Insecticide, FMC

Astro Permethrin 36.8% Termiticide and Insecticide provides effective broad label control of over 100 insects.

Active Ingredient: Permethrin - 36.8%

EPA Signal Word - CAUTION / PRECAUCION

From $70.95

Tengard SFR Termiticide Insecticide, UPI

Tengard SFR Termiticide and Insecticide for effective broad label control of over 100 insects.

In stock, ships within 24 hours.

From $17.95

BaseLine 23.4% Bifenthrin Insecticide, FMC

BaseLine Insecticide provides long lasting protection against Mountain Pine and other Bark Beetles.

Active Ingredient: Bifenthrin 23.4%

Signal Word - WARNING / AVISO

From $36.95

Sevin SL Carbaryl Insecticide, Bayer

Sevin SL Carbaryl Insecticide provides broad-spectrum control of more than 130 turf and ornamental pests.

Active Ingredient: Carbaryl 43.0%

Signal Word - CAUTIION / PRECAUCION

From $115.95

Carbaryl 4L Insecticide (Sevin SL), Loveland Products

Carbaryl 4L Insecticide provides broad-spectrum control of more than 130 turf and ornamental pests.

Active Ingredient: Carbaryl 43.0%

Signal Word - CAUTION / PRECAUCION

From $125.95

Douglas-Fir Beetle w/MCOL Lure

Douglas-Fir Beetle w/MCOL Lure Bubble Cap (Dendroctonus pseudotsugae)

Lure Type: Pheromone Lure

Min. Order 10 lures

$30 Mfr. drop ship fee
Please allow 7 to 14 days for delivery.

From $6.51

Douglas-Fir Beetle w/Seudenol Lure

Douglas-Fir Beetle w/Seudenol Lure Bubble Cap (Dendroctonus pseudotsugae)

Lure Type: Pheromone Lure

Min. Order 10 lures

$30 Mfr. drop ship fee
Please allow 7 to 14 days for delivery.

From $6.51