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#Scolytus multistriatus
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Dutch Elm Disease
Why is the ailment afflicting elm trees called “Dutch Elm Disease?” Well according to BioForest Technologies Inc. “a young phytopathologist from the Netherlands named Bea Schwartz first isolated a fungus from dying elms in 1921, which would give rise to the Dutch elm disease moniker. Another Dutch researcher, Christine Buisman, would also be instrumental in showing the disease was, in fact,…
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notinordinate · 4 years
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Scolytus multistriatus (Marsham, 1802) https://ift.tt/3d0XHIa
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eurekamag--com · 7 years
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Response of European populations of Scolytus multistriatus to isomers of multistriatin
http://dlvr.it/PPzhdb
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Protect Your Elm Trees:
Don’t Prune From April 1 to August 31
Richard St. Barbe Baker Afforestation Area in the fog
The Elm Bark Beetles, Hylurgopinus rufipes (Eichhoff), shows an attack as red sawdust appears on the bark of the elm tree indicating the presence of small round holes where the beetles enter.  Another sign of Dutch Elm disease occurs in July, “Flagging” manifests as yellow, curling leaves and wilting foliage, and defoliation in the crown of the tree.  These little insects may carry the Dutch elm disease from a diseased tree to a healthy one.  “Staining “ will show evidence of red streaks through the sapwood in infected twigs.  These little beetles can overwinter in the outer bark of the living elm, or survives as larvae inside the bark of a dead elm. “Dutch elm disease is a fungal disease that blocks trees’ water systems, killing them within one to two years.” Star Phoenix  
Elm bark beetles are attracted to weak, and sickly trees.  “Dying branches on an elm increase the chances that a beetle, possibly carrying the DED fungus, will make its way to  your tree.”  Fact Sheet # 3 Give your elm trees a healthy foundation with watering and retaining leaves for fertilizer at the base of the tree.
“The most effective management strategy for the elm bark beetle is to deprive it of its breeding habitat. This involves keeping elm trees healthy and removing dead and dying branches. It is necessary to dispose of any branches or wood from a fallen elm tree and either remove the stump or render it uninhabitable. Under no circumstances should elm wood be left lying around or stored for firewood or other purposes.” City of Saskatoon
“If someone brought in infected wood that had the beetle in the wood, that beetle would fly over top of a healthy tree and start to go into that healthy tree spreading the disease.” Michelle Chartier, Superintendent of Urban Forestry and Pest Management. CBC News
Tree banding is a preventative measure (so that the species which travels down the trunk of the tree to overwinter under the bark at the base of a live elm cannot make its downward journey.  For this method to be effective, the band must be placed on the Elm tree by late September, and should stay on the tree until spring), similar to the practice applied for cankerworms.
American elm Ulmus americana is the primary host tree for the native elm bark beetle Hylurgopinus rufipes. Siberian elm Ulmus laciniata is the native host tree species for the Smaller European elm bark beetle Scolytus multistriatus in the United States.
“After the beetle feeds in a tree infected with Dutch Elm Disease, the fungus spores attach to the back of the beetle, causing it to infect the next healthy trees.
An elm tree in Regina had to be removed last year due to DED and the city has had to remove 94 trees since the disease was first detected in 1981.”
“Saskatoon recorded its first case of DED in July 2015.“Global News
In the afforestation area, and across Saskatchewan, an Elm tree pruning ban is in effect between April 1 to August 31.  The elm beetles are the most active during these months, and pruning the Elm tree during this time frame will increase the chance of infection.  The newly created cut attracts the elm beetles.
Do not store, transport or use Elm Wood as in firewood or for other purposes.  Report any Elm trees with signs of elm beetle distress to 306-975-2890.  Only dispose of elm wood at the City of Saskatoon Landfill and never ever at a compost site.
“SOS Elms Coalition is concerned about the health of Saskatchewan’s community tree populations, in particular the threat of Dutch Elm Disease.”
For directions as to how to drive to “George Genereux” Urban Regional Park
For directions on how to drive to Richard St. Barbe Baker Afforestation Area
For more information:
Blairmore Sector Plan Report; planning for the Richard St. Barbe Baker Afforestation Area,  George Genereux Urban Regional Park and West Swale and areas around them inside of Saskatoon city limits
P4G Saskatoon North Partnership for Growth The P4G consists of the Cities of Saskatoon, Warman, and Martensville, the Town of Osler and the Rural Municipality of Corman Park; planning for areas around the afforestation area and West Swale outside of Saskatoon city limits
Richard St. Barbe Baker Afforestation Area is located in Saskatoon, Saskatchewan, Canada north of Cedar Villa Road, within city limits, in the furthest south west area of the city. 52° 06′ 106° 45′ Addresses: Part SE 23-36-6 – Afforestation Area – 241 Township Road 362-A Part SE 23-36-6 – SW Off-Leash Recreation Area (Richard St. Barbe Baker Afforestation Area ) – 355 Township Road 362-A S ½ 22-36-6 Richard St. Barbe Baker Afforestation Area (West of SW OLRA) – 467 Township Road 362-A NE 21-36-6 “George Genereux” Afforestation Area – 133 Range Road 3063 Wikimapia Map: type in Richard St. Barbe Baker Afforestation Area Google Maps South West Off Leash area location pin at parking lot Web page: https://stbarbebaker.wordpress.com Where is the Richard St. Barbe Baker Afforestation Area? with map Where is the George Genereux Urban Regional Park (Afforestation Area)? with map
Pinterest richardstbarbeb
Facebook Group Page: Users of the George Genereux Urban Regional Park
Facebook: StBarbeBaker
Facebook group page : Users of the St Barbe Baker Afforestation Area
Facebook: South West OLRA
Twitter: StBarbeBaker
You Tube Richard St. Barbe Baker Afforestation Area
You Tube George Genereux Urban Regional Park
Should you wish to help protect / enhance the afforestation areas, please contact the City of Saskatoon, Corporate Revenue Division, 222 3rd Ave N, Saskatoon, SK S7K 0J5…to support the afforestation area with your donation please state that your donation should support the Richard St. Barbe Baker Afforestation Area, or the George Genereux Urban Regional Park, or both afforestation areas located in the Blairmore Sector. Please and thank you!  Your donation is greatly appreciated.
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  “St. Barbe’s unique capacity to pass on his enthusiasm to others. . . Many foresters all over the world found their vocations as a result of hearing ‘The Man of the Trees’ speak. I certainly did, but his impact has been much wider than that. Through his global lecture tours, St. Barbe has made millions of people aware of the importance of trees and forests to our planet.” Allan Grainger
“The science of forestry arose from the recognition of a universal need. It embodies the spirit of service to mankind in attempting to provide a means of supplying forever a necessity of life and, in addition, ministering to man’s aesthetic tastes and recreational interests. Besides, the spiritual side of human nature needs the refreshing inspiration which comes from trees and woodlands. If a nation saves its trees, the trees will save the nation. And nations as well as tribes may be brought together in this great movement, based on the ideal of beautifying the world by the cultivation of one of God’s loveliest creatures – the tree.” ~ Richard St. Barbe Baker.
  Watch for flagging and staining Protect Your Elm Trees: Don't Prune From April 1 to August 31 The Elm Bark Beetles,
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eurekamag--com · 7 years
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Structure of the water-soluble feeding stimulant for Scolytus multistriatus: a revision
http://dlvr.it/P91L63
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eurekamag--com · 7 years
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Lignin intermediates and simple phenolics as feeding stimulants for Scolytus multistriatus
http://dlvr.it/Nw2tVm
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eurekamag--com · 7 years
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Naphthoquinone inhibitors of Periplaneta americana and Scolytus multistriatus feeding: ultraviolet difference
http://dlvr.it/NvR5QB
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