Caloptilia fraxinella (Lepidoptera: Gracillariidae), a new pest of ash (Oleaceae: Fraxinus spp.) on the Canadian prairies

2004 ◽  
Vol 136 (5) ◽  
pp. 733-736 ◽  
Author(s):  
Gregory R. Pohl ◽  
Christopher Saunders ◽  
William B. Barr ◽  
Mark D. Wartenbe ◽  
Sherri L. Fownes

In 1999, the leaf roller Caloptilia fraxinella (Ely) (Lepidoptera: Gracillariidae) was noticed for the first time in the city of Edmonton, Alberta, Canada, on ornamental green ash (Fraxinus pennsylvanica Marsh. var. subintegerrima (Vahl) Fern.) and black ash (F. nigra Marsh.) (Oleaceae). It has since been found there on Manchurian ash (F. mandshurica Rupr.) and white ash (F. americana L.). Specimens were collected and reared, and vouchers have been deposited in the Canadian Forest Service Arthropod Collection in Edmonton and the Canadian National Collection of Insects (CNC) in Ottawa, Ontario.

2009 ◽  
Vol 141 (1) ◽  
pp. 31-39 ◽  
Author(s):  
M.L. Evenden

AbstractThe ash leaf cone roller, Caloptilia fraxinella (Ely), is a leaf-mining moth that has recently become a significant pest of horticultural ash, Fraxinus L., species in communities throughout the western prairie provinces of Canada. The study examines the spatial and temporal within-host distribution of immature stages of C. fraxinella on green ash, Fraxinus pennsylvanica Marsh. Female C. fraxinella showed a preference for oviposition sites in the lower canopy and on the south side of the tree at the beginning and middle of the 3-week oviposition period, respectively, but no preference at the end of the period. Oviposition was constrained temporally and occurred mainly just after green ash bud flush. Immature stages were sampled throughout the growing season, and measured widths of larval head capsules showed five instars. Fourth-instar larvae disperse from the mined leaflet to a new leaflet, roll it into a cone, and pupate. Neither canopy height nor ordinal direction affected the position of larvae in the canopy, but numbers of immature stages varied by tree within a site. Female and male moths eclose from rolled leaf cones synchronously throughout the emergence period. The study provides some of the basic biological information required to design an integrated pest management program to target this emerging pest of horticultural ash trees.


2020 ◽  
Vol 55 (1) ◽  
pp. 65-78
Author(s):  
G. Ripka ◽  
M. Korda ◽  
Á. Szabó

Aculus epiphyllus (Nalepa, 1892) is reported from green ash in Europe for the first time. Ash rust mite has never been found on green ash, and we therefore re-describe and illustrate the female and male, and describe the nymph. The species was collected from the underside of the leaflets of the introduced ash species, Fraxinus pennsylvanica Marshall (Oleaceae) in Hungary.


2011 ◽  
Vol 28 (2) ◽  
pp. 79-83 ◽  
Author(s):  
Toby R. Petrice ◽  
Robert A. Haack

Abstract Efforts to eradicate or slow the spread of emerald ash borer (EAB) (Agrilus planipennis Fairmaire [Coleoptera: Buprestidae]) include cutting infested and nearby uninfested ash (Fraxinus spp.) trees. However, ash trees readily sprout after they have been cut, providing potential host material for EAB. In 2004–2005, we conducted studies to determine how different cutting times (midspring, late spring, and late summer), different cutting heights (0–5, 10–15, and 20–25 cm above the ground), and triclopyr (44% active ingredient) stump treatment of green ash (Fraxinus pennsylvanica Marsh.) trees affected subsequent stump sprouting and colonization by EAB. We also cut white ash (Fraxinus americana L.) and black ash (Fraxinus nigra Marsh.) trees 20–25 cm above the ground in late spring. Some stumps of each ash species tested sprouted and were colonized by EAB. All green ash stumps treated with triclopyr died and were not colonized by EAB. Stump sprouting was significantly lower for stumps cut in late spring compared with stumps cut in midspring or late summer. Stump sprouting did not vary significantly among cutting heights. None of the green ash stumps cut in midspring or cut 0–5 cm above the ground were colonized by EAB; however, the frequency of stump colonization by EAB did not vary significantly among cutting times or cutting heights.


Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2734 ◽  
Author(s):  
Sohail Qazi ◽  
Domenic Lombardo ◽  
Mamdouh Abou-Zaid

The Emerald Ash Borer (EAB), Agrilus planipennis, Fairmaire, an Asian invasive alien buprestid has devastated tens of millions of ash trees (Fraxinus spp.) in North America. Foliar phytochemicals of the genus Fraxinus (Oleaceae): Fraxinus pennsylvanica (Green ash), F. americana (White ash), F. profunda (Bush) Bush. (Pumpkin ash), F. quadrangulata Michx. (Blue ash), F. nigra Marsh. (Black ash) and F. mandshurica (Manchurian ash) were investigated using HPLC-MS/MS and untargeted metabolomics. HPLC-MS/MS help identified 26 compounds, including phenolics, flavonoids and coumarins in varying amounts. Hydroxycoumarins, esculetin, esculin, fraxetin, fraxin, fraxidin and scopoletin were isolated from blue, black and Manchurian ashes. High-throughput metabolomics revealed 35 metabolites, including terpenes, secoiridoids and lignans. Metabolomic profiling indicated several upregulated putative compounds from Manchurian ash, especially fraxinol, ligstroside, oleuropin, matairesinol, pinoresinol glucoside, 8-hydroxypinoresinol-4-glucoside, verbenalin, hydroxytyrosol-1-O-glucoside, totarol and ar-artemisene. Further, dicyclomine, aphidicolin, parthenolide, famciclovir, ar-turmerone and myriocin were identified upregulated in blue ash. Principal component analysis demonstrated a clear separation between Manchurian and blue ashes from black, green, white and pumpkin ashes. The presence of defensive compounds upregulated in Manchurian ash, suggests their potential role in providing constitutive resistance to EAB, and reflects its co-evolutionary history with A. planipennis, where they appear to coexist in their native habitats.


2020 ◽  
Vol 9 (3) ◽  
pp. 87-100
Author(s):  
M.A. KOMOVA ◽  
Keyword(s):  

The purpose of the article is to present the history and the analysis of the Russian wooden sculpture “Nikola Мtsenskiy” results of the examination from Peter and Paul Cathedral in Mtsensk. For the first time, the author conducted a historical and cultural examination of this object for religious purposes. The article defines the historical and cultural context of this object existence, its veneration as a relic, the problem of comparing the “The Legend of the appearance of the miraculous icon of St. Nicholas Wonderworker in the city of Mtsensk” and the preserved sculpture. The author also examines the historical and artistic sources of origin of similar items in the culture of the medieval Moscow state. The author dates the preserved fragment of the sculpture from Mtsensk Peter and Paul Cathedral to the late 1600s.


Commissioned by the English East India Company to write about contemporary nineteenth-century Delhi, Mirza Sangin Beg walked around the city to capture its highly fascinating urban and suburban extravaganza. Laced with epigraphy and fascinating anecdotes, the city as ‘lived experience’ has an overwhelming presence in his work, Sair-ul Manazil. Sair-ul Manazil dominates the historiography of eighteenth- and nineteenth-century compositions on Delhi in Persian and Urdu, and remains unparalleled in its architecture and detailed content. It deals with the habitations of people, bazars, professions and professionals, places of worship and revelry, and issues of contestation. Over fifty typologies of structures and several institutions that find resonance in the Persian and Ottoman Empires can also be gleaned from Sair-ul Manazil. Interestingly, Beg made no attempt to ‘monumentalize’ buildings; instead, he explored them as spaces reflective of the sociocultural milieu of the times. Delhi in Transition is the first comprehensive English translation of Beg’s work, which was originally published in Persian. It is the only translation to compare the four known versions of Sair-ul Manazil, including the original manuscript located in Berlin, which is being consulted for the first time. It has an exhaustive introduction and extensive notes, along with the use of varied styles in the book to indicate the multiple sources of the text, contextualize Beg’s work for the reader and engage him with the debate concerning the different variants of this unique and eclectic work.


Geosciences ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 321
Author(s):  
Miltiadis Polidorou ◽  
Niki Evelpidou ◽  
Theodora Tsourou ◽  
Hara Drinia ◽  
Ferréol Salomon ◽  
...  

Akrotiri Salt Lake is located 5 km west of the city of Lemesos in the southernmost part of the island of Cyprus. The evolution of the Akrotiri Salt Lake is of great scientific interest, occurring during the Holocene when eustatic and isostatic movements combined with local active tectonics and climate change developed a unique geomorphological environment. The Salt Lake today is a closed lagoon, which is depicted in Venetian maps as being connected to the sea, provides evidence of the geological setting and landscape evolution of the area. In this study, for the first time, we investigated the development of the Akrotiri Salt Lake through a series of three cores which penetrated the Holocene sediment sequence. Sedimentological and micropaleontological analyses, as well as geochronological studies were performed on the deposited sediments, identifying the complexity of the evolution of the Salt Lake and the progressive change of the area from a maritime space to an open bay and finally to a closed salt lake.


2020 ◽  
Vol 20 (1) ◽  
pp. 54-68

AbstractIn 2014 through 2018, Sichuan Provincial Institute of Cultural Relics and Archaeology and History Museum of Quxian County conducted a systematic archaeological survey, detection, and excavation to the Chengba site in Quxian County. The excavation uncovered 4,000sq m in total, from which 444 various features were recovered and over 1,000 artifacts were unearthed. The functional zoning of this site has been roughly made clear; the excavations of the western gate and important building foundations of the Guojiatai city site are important archaeological discoveries of the city sites of the Han through Western Jin dynasties, and at the checkpoint site on the waterway of this period was uncovered for the first time in China. The large amounts of bamboo slips and wooden tablets unearthed in the excavation provided important materials for the explorations on the management of the central government of the Han and Jin empires to the administrative areas of commandery and district levels and the social lives of the local people at that time.


Millennium ◽  
2020 ◽  
Vol 17 (1) ◽  
pp. 35-53
Author(s):  
Christoph Schwameis

AbstractBoth in the fourth book of Cicero’s De signis (Verr. 2,4) and in the fourteenth book of Silius Italicus’ Punica, there are descriptions of the city of Syracuse at important points of the texts. In this paper, both descriptions are combined and for the first time thoroughly related. I discuss form and content of the accounts, show their functions in their oratorical and epic contexts and consider their similarities. The most important facets, where the descriptions coincide in, seem to be their link to Marcellus’ conquest in the Second Punic War, the resulting precarious beauty of the city and the specifically Roman perspective on which these ekphraseis are based.


2021 ◽  
Vol 17 (6) ◽  
pp. 564-575
Author(s):  
Irina I. Rutsinskaya

An artist who finds themselves in the last days of a war in the enemy’s defeated capital may not just fix its objects dispassionately. Many factors influence the selection and depicturing manner of the objects. One of the factors is satisfaction from the accomplished retribution, awareness of the historical justice triumph. Researchers think such reactions are inevitable. The article offers to consider from this point of view the drawings created by Soviet artists in Berlin in the spring and summer of 1945. Such an analysis of the German capital’s visual image is conducted for the first time. It shows that the above reactions were not the only ones. The graphics of the first post-war days no less clearly and consistently express other feelings and intentions of their authors: the desire to accurately document and fix the image of the city and some of its structures in history, the happiness from the silence of peace, and the simple interest in the monuments of European art.The article examines Berlin scenes as evidences of the transition from front-line graphics focused on the visual recording of the war traces to peacetime graphics; from documentary — to artistry; from the worldview of a person at war — to the one of a person who lived to victory. In this approach, it has been important to consider the graphic images of Berlin in unity with the diary and memoir texts belonging to both artists and ordinary soldiers who participated in the storming of Berlin. The combination of verbal and visual sources helps to present the German capital’s image that existed in the public consciousness, as well as the specificity of its representation by means of visual art.


Sign in / Sign up

Export Citation Format

Share Document