The spruce beetle, Dendroctonus rufipennis (Kirby), is the most significant natural mortality agent of mature spruce. Outbreaks of this beetle have caused extensive spruce mortality from Alaska to Arizona and have occurred in every forest with substantial spruce stands. Spruce beetle damage results in the loss of 333 to 500 million board feet of spruce saw timber annually. More than 2.3 million acres of spruce forests have been infested in Alaska in the last 7 seven years with an estimated 30 million trees killed per year at the peak of the outbreak. In the 1990's, spruce beetle outbreaks in Utah infested more than 122,000 acres and killed more than 3,000,000 spruce trees. In the past 25 years, outbreaks have resulted in estimated losses of more than 25 million board feet in Montana, 31 million in Idaho, over 100 million in Arizona, 2 billion in Alaska, and 3 billion in British Columbia.
Spruce beetle outbreaks cause extensive tree mortality and modify stand structure by reducing the average tree diameter, height, and stand density. Residual trees are often slow-growing small and intermediate-sized trees which eventually become dominant.
Spruce Beetle USFS FIDL #127 pdf
Wood Boring Insects of Trees & Shrubs
Bifen XTS Bifenthrin insecticide provides long lasting protection against Mountain Pine and other Bark Beetles.Active Ingredients: Bifenthrin 25.1%Insecticide Mode of Action: 3AInsecticide Class: Pyrethroids EPA Signal Word: WARNING / AVISOApplication Rate Range: (see label) Container Size(s): 1 Qt., 1 Gal.
Carbaryl 4L 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.
Treegator Original is a slow release watering bag that is perfect for newly planted or established trees from 1 to 8 inches in trunk diameter, with branches beginning at least 25 inches from the ground or higher.
Treegator Jr. Pro Slow Release Watering Bag for Evergreens, Trees & Shrubs. Professionally water any newly planted tree or shrub with a Treegator Jr. Pro Slow Release Watering Bag! Dual emitters continuously provides water over a 5 to 8 hour time period with no run-off. Brown color and low profile blends with existing landscape and reduces visibility while in use. Installs in minutes with no tools. Requires filling just 1 to 2 times per week. Just place, fill, and walk away! Sold Individually, Case Qty. = 12
AXXE Broad Spectrum Herbicide is a non-selective, weed control for grasses and broadleaf weeds. It is formulated to deliver maximum performance and provide fast-acting results on a long list of weeds and grasses, as well as most mosses and lichens. OMRI Listed.Sold Individually
Grandevo WDG Bioinsecticide Miticide is a new water dispersible granule formation that contains several active compounds that repel, stop feeding, reduce reproduction and induce mortality to prevent the development of damaging populations of sucking and chewing insects, flies and mites. OMRI Listed.Active Ingredients: Chromobacterium subtsugae strain PRAA4-1 30.0% Insecticide Mode of Action:Insecticide Class:EPA Signal Word: CAUTION / PRECAUCIONApplication Rate Range: (see label) Container Size(s): 20 Lbs.