Web7 Jun 2016 · Periodic budworm outbreaks are part of the natural maturation cycle of balsam fir and white spruce. Every 30 to 50 years, large-scale outbreaks cause widespread top kill and tree mortality. The last outbreak in Michigan started in the Upper Peninsula in the late 1960s and ended in the early ’80s. Web25 Jun 2015 · The spruce budworm (SBW) (Choristoneura fumiferana) is one of the most destructive native insects in the northern spruce and fir forests of the Eastern United …
Ecology of outbreak populations of the western spruce budworm
Web15 Jun 2015 · Posts about spruce budworm written by farlane. April 11, photo by Michael Koole. Garret Ellison of the Grand Rapids Press & mLive writes that the Michigan Department of Natural Resources expects spruce budworm to inflict heavy damage on white spruce and balsam fir trees across the Upper and northern Lower Peninsulas this year:. … WebSpruce Budworm in Michigan’s Eastern Upper Peninsula Male Cape May Warbler in a spruce with two Spruce Budworms Periodic outbreaks of Eastern Spruce Budworm (every 30-40 years) are part of the natural cycle in spruce and fir forests of Eastern Canada and … six flags magic mountain one day ticket
Relationships between spruce budworm damage and site factors in spruce …
Webof the Spruce Budworm by Bruce A. Montgomery, John B. Dimond, John A. Witter, and Gary A. Simmons* Introduction Over the last 30 years the spruce budworm, Choristoneura fumiferana (Clemens), has defoliated and killed a large number of spruce-fir stands in Maine, Minnesota, Michigan, Wisconsin, New Hampshire, and Vermont. Maine's economy is heavi- WebWestern spruce budworm has one generation per year. There are four life stages: egg, larva, pupa, and adult. Larvae pass through six developmental stages, called instars, and adults … Web11 Sep 2007 · Since 1909 there have been waves of budworm out breaks throughout the Eastern United States and Canada. The States most often affected are Maine, New Hampshire, New York, Michigan, Minnesota, and Wisconsin. These outbreaks have resulted in the loss of millions of cords of spruce and fir. six flags magic mountain near me