2 edition of spruce beetle in Alaska forests found in the catalog.
spruce beetle in Alaska forests
Richard A. Werner
by Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station in Portland, Or
Written in English
|Statement||by Richard A. Werner.|
|Contributions||Pacific Northwest Forest and Range Experiment Station (Portland, Or.)., United States. Forest Service.|
|The Physical Object|
|Pagination|| p. :|
State of Alaska Department of Natural Resources. W. 7th Ave, Suite Anchorage, AK Phone: () Fax: () TTY: Dial or Spruce Beetle Information; Forest Health Grants; Links to Related Web Sites; Western Bark Beetle Initiative Grant Program. The Western Bark Beetle Initiative (WBBI) is a cost-share program designed to assist non-federal landowners statewide with bark beetle prevention, suppression, or restoration efforts. State of Alaska Department of.
A massive spruce beetle outbreak began in Southcentral Alaska in , aerially mapped across nearly 1 million acres. More than , acres of dying spruce were observed in and , acres in The multi-agency Alaska Spruce Beetle Working Group was formed in with representatives from Alaska Division of Forestry, UAF Cooperative Extension Service, and USFS Forest Health. The amount of forest impacted by the spruce beetles has increased every year since In , around , acres were impacted. After a female beetle .
But this pest is different in several ways. The trees have better chances of survival. Southcentral Alaska forests probably do face permanent transformation, but the spruce . The spruce beetle is an aggressive bark beetle that feeds and reproduces in the inner bark of various species of spruce trees. Currently, spruce beetles are affecting over , acres in the Matanuska-Susitna Valley, resulting in widespread mortality of spruce trees. This infestation has been ramping up over the past few years in Alaska.
England and America
Adam International Review, no. 238, 1953.
Retroviral vector production for gene therapy applications
Report on the proceedings of the ASGES Workshop on Safety Analyses and Oil Drift Models.
Index to heads of households, 1870 federal census, Calhoun County Alabama and 1870 mortality schedule, Calhoun County, Alabama.
Some recent advances in the basic sciences
Corals and coral islands.
Adventures of the Scarlet Pimpernel
1990 census of population.
The history of Israel
America as a civilization.
mass-balance approach for assessing PCB movement during remediation of a PCB-contaminated deposit on the Fox River, Wisconsin
Lake Superior basin segment of the midcontinent rift system
Spruce Beetle in Alaska's Forests. Spruce beetles begin to take flight in Southcentral Alaska. Spruce beetles are beginning to emerge in Southcentral Alaska and property owners should take steps to reduce further infestation of green spruce trees. Adult spruce beetles typically emerge from their host trees each spring when temperatures reach 60°F.
More detailed information about the spruce beetle can be obtained from a forest pest leaflet published by the USFS in response to the s epidemic: spruce beetle FIDL #; Spruce Beetles in Firewood. Spruce beetles attack and breed only in spruce. Birch. Please visit these partner pages for additional information on spruce beetles in Alaska.
USDA Forest Service pest profile on spruce beetle. Alaska Department of Natural Resources – Division of Forestry spruce beetle information page.
Spruce beetle educational videos. Click the titles below to be taken directly to the videos. 1. Introduction. Between anda spruce beetle (Dendroctonus rufipennis) epidemic infested million ha of spruce forest in south-central Alaska (USDA Forest Service, and Alaska Department of Natural Resources, ).Of the areas impacted, the forests on the southwestern Kenai Peninsula experienced the most substantial reductions in spruce volume, size class and stand Cited by: A beetle is revealed under the bark of a spruce tree during a forestry project at Joint Base Elmendorf-Richardson, Alaska, June 6, Spruce bark beetles are attacking Alaska’s spruce tree population from the Kenai Peninsula to the Matanuska Valley and JBER.
Spruce bark beetles typically attack trees greater than six inches in diameter. A spruce bark beetle infestation that began a few years ago in Southcentral Alaska is spreading in Anchorage, taking out hundreds of acres of trees, arborists and forest scientists say.
Monitoring for spruce beetle activity is important in both forest settings and for landscape and ornamental trees. Monitoring can be done any time of year but late summer and early fall (approximately August to October) allows you to assess current year attacks and plan for management activities for the following spring, if warranted.
The beetles normally are present in low numbers in Alaska forests, but in the s they exploded across the Kenai Peninsula, turning nearly 5 million acres of big spruce. Spruce beetle is always present in our spruce forests and has a notorious history in Alaska. In times of low populations, spruce beetle favors large diameter, wind-thrown or otherwise damaged spruce trees.
Spruce beetle is capable of killing otherwise healthy spruce, though, when populations are high. Long-time residents may remember the spruce. The most noticeable symptom of a spruce beetle infestation is the change in needle color of impacted spruce.
Following a successful spruce beetle attack, needles will change from healthy green, to faded yellow, and finally to red before the needles eventually drop.
This process occurs at varying rates and may take over a year to occur. Boring dust. A severe mountain pine beetle outbreak began ineasily visible along I and in Rocky Mountain National Park.
Sincemore than million acres of Engelmann spruce statewide have been affected by spruce beetles in high-elevation forests. Spruce Beetle in Non-Spruce: When beetle populations are high, spruce beetles and other related bark beetles are known to occasionally attack non-spruce conifers.
Inthere were a few reports of non-spruce conifers (Scots pines © Spruce Beetle in Alaska's Forests. Much of the Alaska research on spruce beetles done during the s was presented at a symposium in Homer. The summarized research in a Forest. Spruce beetles and forest ecosystems in south-central Alaska: A review of 30 years of research.
Forest Ecology and Management Available here. In addition to this website, see for great information on the spruce beetle damage and management in Alaska. The spruce bark beetle (SBB) has become a very.
serious cause of tree mortality in the spruce forests of Southcentral Alaska. Although they are present in the Interior, they are less of a threat. With spruce beetle already showing up in neighborhoods like Spenard and Turnagain in Anchorage, it may be a losing battle, but then again, knowing about the life cycle of the beetles may save that tree in your yard.
Spruce beetles infest Sitka, white, and Lutz spruce trees, and are rarely are seen in black spruce or Scots pine. Get this from a library. The spruce beetle in Alaska forests.
[Richard A Werner; United States Pacific Northwest Forest and Experiment Station.; United States. Forest Service.]. Spruce beetles (Dendroctonus rufipennis) are native bark beetles that infest Engelmann spruce (Picea engelmannii) and occasionally Colorado blue spruce (P. pungens) in high elevation forests in spruce beetle typically completes a generation in one to three years, with a two-year life cycle being the most common in spruce trees growing above 9, feet.
Get this from a library. The spruce beetle in white spruce forests of Alaska. [Richard A Werner; Bruce H Baker; Peter A Rush; Pacific Northwest Forest and Range Experiment Station (Portland, Or.); United States.
Forest Service.]. The spruce beetle in Alaska has a one- or two-year life cycle. Adult beetles emerge from infested trees from mid-May to mid-June, and their flight to fresh host materials lasts until mid-July. When the female beetle finds a suitable host, she bores into the bark and constructs and egg gallery in the phloem parallel to the wood grain and usually.
Small populations of spruce bark beetles are always present in Alaska spruce forests. Most of the time, the numbers are kept low by colder winters, but when conditions are right, spruce beetles may suddenly increase to epidemic numbers. The right conditions include an abundance of breeding material accompanied by an extremely dry summer.The second event is a new one.
It is a Community Tree Forum to start the discussion about what to do post-spruce bark takes place the night before the spring conference, from p.m.Dendroctonus rufipennis, the spruce beetle, is a species of bark beetle native to British Columbia, Newfoundland and Labrador, Nova Scotia, Ontario, Quebec, Northern Manitoba, the Yukon, Colorado, Wyoming, Montana, and are known to destroy forests of spruce trees including Engelmann, White, Sitka, and Colorado blue spruce.
Adults average 4 to 7 mm in length.