scholarly journals Myriophyllum pinnatum (cutleaf watermilfoil).

Author(s):  
Jeanine Vélez-Gavilán

Abstract Myriophyllum pinnatum is a perennial aquatic herb only reported as invasive in Cuba, where it is included in the management plan of the Ciénaga de Zapata Biosphere Reserve as a species that needs to be managed to prevent invasion of that wetland system. In some areas of its native range in North America, it is considered rare, endangered or extirpated due to habitat fragmentation and loss. In the USA, the species is considered endangered in Connecticut, Massachusetts, Indiana, New Jersey, New York, Rhode Island and Tennessee. M. pinnatum belongs to a genus recognized for the invasive species M. spicatum, M. aquaticum and M. heterophyllum.

Author(s):  
D. W. Minter

Abstract A description is provided for Coccomyces strobi. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Pinus ayacahuite, P. excelsa [= P. wallichiana] (twig), P. monticola (twig), P. strobus (twig), P. wallichiana. Most records are on P. strobus. DISEASE: Coccomyces strobi is found on recently killed twigs of 5-needle pines. Sherwood (60, 1319) noted that 'since the fungus is nearly ubiquitous and appears soon after the death of the portions of the host on which it occurs, it is tempting to brand it as parasitic'. The twigs on which it occurs are typically rather brittle, suggesting that, like Therrya fuckelii (IMI Description 1297), T. pini (IMI Description 1298) and Colpoma quercinum (IMI Description 942), this fungus may have a rôle in self-pruning of the tree. GEOGRAPHICAL DISTRIBUTION: Canada (British Columbia, New Brunswick, Nova Scotia, Ontario), Hungary, Ukraine, USA (Connecticut, Georgia, Maine, Maryland, Massachusetts, Michigan, Minnesota, Nebraska, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Virginia, Washington, Wisconsin). European records are on Pinus strobus, a native of North America. The fungus is thus most probably also to be a native of North America, which has travelled to Europe with its host. The record from Ukraine is tentative, based on a collection with rather old ascomata. The record from Washington State on P. monticola appears to be the first from west of the Rockies. TRANSMISSION: By air-borne ascospores in humid conditions; in the USA, ascomata containing ascospores have been observed from May to August.


2021 ◽  
Author(s):  

Abstract C. abietis is a microcyclic rust fungus; an obligate parasite completing its life cycle on species of Picea (spruce). Only the current year's needles of Picea are infected and those needles are shed early. Reported from northern Europe and Asia, the fungus is a Regulated Pest for the USA. It is absent from North America, where susceptible species are native, and Australia and New Zealand, where they are introduced. Although usually not a significant problem in its native range, because conditions are not favourable for heavy infections every year (Smith et al., 1988; Hansen, 1997), this rust could be more damaging as an invasive in other temperate areas. Due to the fact that small amounts of infection may be overlooked, accidental introduction could occur through importation of infected seedlings or young trees.


Author(s):  

Abstract A new distribution map is provided for Phomopsis juniperivora Hahn. Hosts: Conifers. Information is given on the geographical distribution in AFRICA, Kenya, Mozambique, South Africa, AUSTRALASIA & OCEANIA, New Zealand, EUROPE, Britain, Netherlands, NORTH AMERICA, Canada (Ontario, Quebec), USA (Alabama, Arkansas, Connecticut, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Minnisota, Mississippi, Nebraska, North Carolina, New Jersey, New York, Oklahoma, Ohio, Pennsylvania, Rhode Island, Tennessee, Texas, Va, Wis), SOUTH AMERICA, Uruguay.


Author(s):  

Abstract A new distribution map is provided for Xiphinema rivesi Dalmasso. Enoplea: Dorylaimida: Longidoridae. Hosts: polyphagous. Information is given on the geographical distribution in Africa (Egypt), Asia (Iran, Pakistan), Europe (France, Germany, Italy, Portugal, Slovenia, Spain, Canary Islands), North America (Canada, Ontario, Quebec, Prince Edward Island, Guadeloupe, United States, Arkansas, California, Colorado, Georgia, Idaho, Illinois, Iowa, Kansas, Maryland, Michigan, Montana, Nebraska, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, Washington, West Virginia), Oceania (Australia, Victoria, Western Australia, Samoa, Tonga), South America (Argentina, Chile, Peru).


Author(s):  

Abstract A new distribution map is provided for Halyomorpha halys (Stal). Hemiptera: Pentatomidae. Hosts: polyphagous on fruits, vegetables and ornamentals. Information is given on the geographical distribution in Europe (Switzerland), Asia (China, Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Menggu, Shaanxi, Shanxi, Sichuan, Xizhang, Yunnan, Zhejiang, Japan, Honshu, Korea Republic, Taiwan), North America (Canada, Alberta, USA, California, Connecticut, Delaware, Florida, Idaho, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Minnesota, Mississippi, Montana, Nevada, New Jersey, New York, Ohio, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Utah, Virginia, Washington, West Virginia, Wisconsin, Wyoming).


Author(s):  

Abstract A new distribution map is provided for Phaeocryptopus gaeumanii (Rohde) Petrak. Hosts: douglas fir (Pseudotsuga menziesii). Information is given on the geographical distribution in Australasia & Oceania, Australia, Victoria, New Zealand, Europe, Austria, Belgium, Denmark, France, Germany, Irish Republic, Italy, Netherlands, Romania, Sweden, Switzerland, UK, Yugoslavia, North America, Canada, British Columbia, Ontario, USA, Arizona, California, Connecticut, Maine, Massechusetts, New Hampshire, New Mexico, New York, Oregon, Rhode Island, Vermont, Washington, Michigan, Wisconsin, Pennsylvania, Minnesota.


2021 ◽  
Vol 9 (01) ◽  
pp. 218-239
Author(s):  
Kris Nagdev

Singapore Airlines is a globally established airline operating out of Singapore. They have a fleet of 129 aircraft flying on 62 routes around the world. In 2018, they were ranked as the world’s best airline by Skytrax. In the early 2010s, in accordance with the ambition to grow, Singapore Airlines expanded the American market with flights to the USA. This posed a challenge for the airline because of the geographical distance between Singapore and North America With the A350-900 ULR, Singapore Airlines restarted its route to New York with the same ambition of expanding into the American market. However, this time the route only offered business class and premium economy to target, using segmentation as a means to grow in the American market. Thus through secondary research, I aim to find out: How effective has been Singapore Airlines’ decision to reopen the New York route to expand in the American Market through segmentation? This research paper aims to evaluate the effectiveness of Singapore Airlines’ strategy to expand into the American Market by targeting a new market segment. The success of failure of this strategy implemented by Singapore Airlines would determine whether or not the strategy of segmentation on ultra-long-haul flights can be replicated by other airlines. Hence, this research is significant as the findings may predict the future of ultra-long-haul flights such. The research found that the nature of the cities of New York and Singapore, innovation leading to the birth of the A350-900ULR, and an effective marketing mix employed created the perfect storm for Singapore Airlines to use segmentation to grow in the American market successfully.


2012 ◽  
Vol 38 (1) ◽  
pp. 24-30
Author(s):  
Julie Kjeldsen-Kragh Keller ◽  
Cecil Konijnendijk

Effective management of the urban forest calls for municipalities to have a tree inventory of their urban resource. The approach to urban forestry is rather different in Europe and North America, both in terms of background and culture. This contribution discusses similarities and differences in tree inventory practices, based on a pilot study of three major cities in North America (Toronto, Ontario, Canada; and Boston, Massachusetts and New York City, New York, U.S.) and three major cities in Northern Europe (Oslo, Norway; and Aarhus and Copenhagen, Denmark). The pilot study consisted of semi-structured expert interviews in each city, and an analysis of their tree inventories in terms of their level of detail, how they were undertaken, and how they have been used. Each of the cities, with exception of Oslo, had inventoried all of their street trees. Volunteers were only used in Boston and New York City. None of the cities had developed a management plan based on their tree inventory. The inventory had only been completely incorporated into the work order system in New York City and Toronto. This explorative study shows that more research is needed to investigate what subsequently happens to tree inventories in municipalities after they have been performed. Moreover, more work is needed to identify whether inventories are being utilized to their full advantage in terms of producing management plans. Some key themes for further research are described. The set up of this pilot study could serve as a format for comprehensive research.


2021 ◽  
Author(s):  
André Gassmann ◽  
Chris Parker

Abstract L. vulgaris is a perennial flowering plant with a spreading root system. It forms dense mats which can compete with crops and suppress native vegetation, reducing pasture productivity and/or biodiversity (ISSG, 2015). Native to temperate areas of Europe and Asia, it has been widely introduced to North America, Australia, New Zealand and South Africa, and is regarded as noxious in many of these countries. By inclusion in indexes of invasive species it is regarded as invasive widely in Canada and in the USA (Alberta Invasive Species Council, 2014; Invasive Plant Atlas of the United States, 2015). L. vulgaris received an invasive index of 69 (out of a maximum of 100) in Alaska, USA (ANHP, 2011). It is also regarded as invasive within its native range in Serbia (Dzigurski and Nikolic, 2014).


Author(s):  

Abstract A new distribution maps is provided for Eutypella parasitica R.W. Davidson & R.C. Lorenz. Ascomycota: Xylariales. Hosts: Acer species. Information is given on the geographical distribution in Europe (Austria and Slovenia) and North America (Ontario and Quebec, Canada, and Connecticut, Illinois, Indiana, Iowa, Maine, Massachusetts, Michigan, Minnesota, New Hampshire, New York, Ohio, Pennsylvania, Rhode Island, Vermont and Wisconsin, USA).


Sign in / Sign up

Export Citation Format

Share Document