Semiochemical-Mediated Flight Strategies of Two Invasive Elm Bark Beetles: A Potential Factor in Competitive Displacement

2010 ◽  
Vol 39 (2) ◽  
pp. 642-652 ◽  
Author(s):  
Jana C. Lee ◽  
Shakeeb M. Hamud ◽  
José F. Negrón ◽  
Jeffrey J. Witcosky ◽  
Steven J. Seybold
Keyword(s):  
Bark Beetles ◽  
Competitive Displacement ◽  
Potential Factor ◽  
Elm Bark Beetles

The hymenopteran parasitoids of some elm bark beetles in Serbia

2007 ◽  
Vol 35 (3) ◽  
pp. 239-243 ◽  
Author(s):  
Aleksandar Stojanovic ◽  
Cedomir Markovic
Keyword(s):  
Bark Beetles ◽  
Hymenopteran Parasitoids ◽  
Elm Bark Beetles

Co-Occurrence of the Invasive Banded and European Elm Bark Beetles (Coleoptera: Scolytidae) in North America

2009 ◽  
Vol 102 (3) ◽  
pp. 426-436 ◽  
Author(s):  
Jana C. Lee ◽  
Ingrid Aguayo ◽  
Ray Aslin ◽  
Gail Durham ◽  
Shakeeb M. Hamud ◽  
...  
Keyword(s):  
North America ◽  
Bark Beetles ◽  
Elm Bark Beetles

scholarly journals Molecular and cellular aspects of Dutch elm disease

2005 ◽  
Vol 72 (1) ◽  
pp. 1-13 ◽  
Author(s):  
M.B. Sticklen ◽  
M.G. Bolyard ◽  
R.K. Hajela ◽  
L.C. Dufresne
Keyword(s):  
Bark Beetles ◽  
Defense Mechanism ◽  
Molecular Level ◽  
Dutch Elm Disease ◽  
Host Responses ◽  
Control Mechanisms ◽  
Cellular Interactions ◽  
Molecular Approaches ◽  
Biochemical Level ◽  
Elm Bark Beetles

The folio wing review gives an overview of current research in the area of molecular and cellular interactions in Dutch elm disease. This vascular wilt disease is caused by the fungus Ophiostoma ulmi and is transmitted from diseased to healthy trees by the elm bark beetles. Fungal toxins are described which are associated with pathogenesis, one of which, ceratoulmin, is under investigation at the molecular level, particularly regarding its mode of action and localization. The fungus has also been examined at the molecular level to differentiate between aggressive and non-aggressive isolates on the basis of protein and nucleic acid profiles. Genetic linkage maps are being developed to correlate disruption of certain genes with the loss of pathogenicity. Viral and bacterial antagonists of the fungus, which may serve as biological control mechanisms for Dutch elm disease, have been characterized, as have several of the active molecules responsible for control. Host responses are also discussed at the molecular and biochemical level, including phytoalexins and defense mechanism elicitors. Several Unes of investigation are discussed to provide an overview of molecular approaches to understanding and manipulating the organisms involved with the ultimate goal of controlling Dutch elm disease.

Elm Bark Beetles in Southwestern Ontario

1957 ◽  
Vol 89 (6) ◽  
pp. 275-280 ◽  
Author(s):  
R. J. Finnegan
Keyword(s):  
United States ◽  
Bark Beetles ◽  
The United States ◽  
Dutch Elm Disease ◽  
Quebec City ◽  
Elm Bark Beetles ◽  
Heavy Mortality ◽  
Infection Spread ◽  
Cleveland Ohio

The Dutch elm disease is caused by the fungus Ceratostomella ulmi (Schwartz) Buis. It was first reported in the United States at Cleveland, Ohio, in 1930 (ll), and has since spread westward to Colorado and northeastward into Vermont (22). It is believed that the disease was accidentally introduced into the United States from Europe, where it has caused heavy mortality of elms since its discovery in 1919 (7, 19, 20). In Canada the disease was first recorded by Pomerleau (14) at St. Ours, Que. This infection proved to be centred around Sorel, Que., and since it was isolated from the nearest known infection in the United States by approximately 200 miles, is regarded as a separate introduction from Europe. The Sorel infection spread very rapidly, and by the end of 1950, the area between Montreal, Quebec City, and Sherbrooke was heavily infested by the fungus (17). I t has since spread westward as far as Ottawa and Kingston in 0ntario (16).

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