Douglas-fir Beetle
Douglas-fir beetle, Dendroctonus pseudotsugae Hopk.
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.
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
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Bifen XTS 25.1% Bifenthrin Insecticide, Control Solutions
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EverGreen EC 60-6 Insecticide, MGK
EverGreen EC 60-6 is a pyrethrin-based botanical insecticide synergized with PBO to maximize control, coverage and efficacy across a wide range of insects and crops. It controls over 100 different insects on most growing crops throughout the entire season including right up until harvest. Active Ingredients: Pyrethrins 6.0%, Piperonyl butoxide 60%Insecticide Mode of Action: 3A, NAInsecticide Class: Pyrethrins, NAEPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: (see label) Container Size(s): 1 Qt., 1 Gal.
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EverGreen Pyrethrum Dust Insecticide, OMRI Listed, MGK
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This product is currently on backorder from the manufacturer.
PyGanic EC 1.4 II Insecticide, OMRI Listed, MGK
PyGanic EC 1.4 II with 1.4% Pyrethrins Insecticide offers immediate insect control for organic production. PyGanic Crop Protection is an organically-compliant, broad-specturm contact insecticide. Organic Certification(s): OMRI Active Ingredients: Pyrethrum 1.4%Insecticide Mode of Action: 3AInsecticide Class: PyrethrinsEPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: (see label) Container Size(s): 1 Qt., 1 Gal.
From $53.45
Astro Termiticide Insecticide, FMC
Astro Permethrin 36.8% Termiticide and Insecticide provides effective broad label control of over 100 insects.Active Ingredients: Permethrin 36.8%Insecticide Mode of Action: 3A Insecticide Class: PyrethroidsEPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: (see label) Container Size(s): 1 Gal.
From $87.95
Tengard SFR Termiticide Insecticide, UPI
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BaseLine Insecticide, FMC
BaseLine Bifenthrin Insecticide is approved for effective control of general pests. Featuring a concentrated version of the trusted active ingredient Bifenthrin in Onyx and Talstar insecticide. BaseLine Insecticide provides long lasting protection against Mountain Pine and other Bark Beetles.
Active Ingredients: Bifenthrin 23.4%Insecticide Mode of Action: 3A Insecticide Class: PyrethroidsEPA Signal Word: WARNING / AVISOApplication Rate Range: (see label) Container Size(s): 1 Gal.
From $201.95
Sevin SL Carbaryl Insecticide, Bayer
Sevin SL Carbaryl Insecticide provides broad-spectrum control of more than 130 turf and ornamental pests. Active Ingredients: Carbaryl 43.0%Insecticide Mode of Action: 1A Insecticide Class: CarbamatesEPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: (see label) Container Size(s): 2.5 Gal.
From $131.95
Sevin XLR Plus Insecticide, Bayer
Sevin XLR Plus Insecticide provides broad-spectrum control of dozens of important pests including beetles, weevils and worms in tree fruit, nut, vine, citrus vegetable and other crops. Active Ingredients: Carbaryl 44.1%Insecticide Mode of Action: 1A Insecticide Class: CarbamatesEPA Signal Word: CAUTION / PRECAUCIONEPA Registration Number: 61842-37Application Rate Range: (see label) Container Size(s): 2.5 Gal.
From $187.95
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