Forest pests (Nova Scotia)
This NSDNR site includes information sheets on specific pests, newsletters and Annual reports (2007 and 2011)
Invasive Alien Species in Nova Scotia
MTRI ( Mersey Tobeatic Research Institute) Identification & Information Guide. 2012 Terrestrial species listed are Norway Maple (Acer platanoides), Oriental Bittersweet (Celastrus orbiculatus), Beech Bark Disease (Cryptococcus fagisuga, Neonectria spp.), Glossy Buckthorn (Frangula alnus), White Nose Syndrome (Geomyces destructans), Dutch Elm Disease (Hylurgopinus, Ophiostoma spp., & Scotylus spp.), Common Reed (Phragmites australis ssp. australis), Scots Pine (Pinus sylvestris), Rugosa Rose (Rosa rugosa). Glossy Buckthorn is prob the biggest threat to forests: “Tolerant of acidic conditions, this species is well adapted to invade a wide variety of natural habitats in Nova Scotia and may represent the greatest threat to plant communities in the province.”
Ten Years of Change in Beech Stand in North Central Maine Long Affected with Beech Bark Disease
MSC Thesis by Amada Farrar, University of Maine, 20013. American Beech was once an important component of our mixed Acadian forest but was severely impacted by beech bark disease incited by a scale insect that came to North America via Halifax. This study showed that clearcutting greatly increases mortality of seedlings from and spouts on disease-resistant trees and “demonstrates the importance of protecting resistant trees with uncut “islands” to insure their survival. Also see NS Naturally: Healthy N.S. beech trees spell hope. Article by Jamie Simpson, 2014.
Kathleen Ryan on /www.invasiveinsects.ca
“The beech leaf-mining weevil (Orchestes fagi), also known as the beech flea weevil, was first detected in Canada in 2012 in Halifax, Nova Scotia. There it was causing severe defoliation on American beech trees (Fagus grandifolia). Subsequent surveys detected the presence of the insect near Sydney, Nova Scotia as well. The weevil is native to Europe where it is common. Currently, this insect is only known to be established in Nova Scotia, where several counties are infested. Read more. View also: European insects ravaging Nova Scotia beech trees CTV Atlantic July 26, 2017.
Destructive, invasive beetle heading for the Maritimes
Globalnews.ca July 5, 2017 “The Emerald Ash Borer was first introduced in Canada and the United States in 2002 and is now making its way to Nova Scotia.”
Acadia gets research funds for alternatives to pesticides
http://www.kingscountynews.ca/ . July 7, 2017 “The Acadia project is Pan-Atlantic in scope with the participation of a number of federal labs including Natural Resources Canada’s Atlantic Forestry Centre in Fredericton, NB and Corner Brook, NL, universities and private companies, including Forest Protection Ltd. (FPL) and Sylvar Technologies of New Brunswick….The plan is to lead in the commercialization of products including traps, lures and sprays that attract, repulse or confuse the mating behaviour of targeted insects.”
Brown spots a sign of changes to come in Halifax’s tree canopy
CBC Sep 4, 2017. “Tar spot, a fungal infection, not harmful to [Norway Maple] trees in short term, but help limit lifespan”.
Spruce Budworm on cue
Post on this website, August 18, 2016. The anticipated outbreak of spruce budworm is pretty well on cue (30-40 years between outbreaks), so one might wonder why such planning has not been integral to forest management policies since the end of the last outbreak (1983).