The Eurasian strawberry blossom weevil, Anthonomus rubi (Herbst, 1795), is established in North America

2021 ◽  
pp. 1-7
Author(s):  
Michelle T. Franklin ◽  
Tracy K. Hueppelsheuser ◽  
Paul K. Abram ◽  
Patrice Bouchard ◽  
Robert S. Anderson ◽  
...  
Keyword(s):  
British Columbia ◽  
North America ◽  
North Africa ◽  
Management Strategies ◽  
Parasitoid Wasp ◽  
Rubus Idaeus ◽  
Anthonomus Rubi ◽  
Fraser Valley ◽  
Wild Hosts ◽  
Strawberry Blossom Weevil

Abstract We report the strawberry blossom weevil, Anthonomus rubi (Herbst, 1795) (Coleoptera: Curculionidae), a species native to Europe, Asia, and North Africa, as established in British Columbia, Canada. This is the first report of A. rubi in North America. We provide a diagnosis of the species and compare it with other species of the genus Anthonomus Germar in Canada. This species is a pest of plants in Rosaceae Jussieu, including economically important berries such as strawberries (Fragaria Linnaeus) and raspberries (Rubus idaeus Linnaeus), and of native berries of importance to Indigenous peoples in Canada. Female weevils oviposit eggs inside developing flower buds and sever flower stalks, facilitating larval development inside damaged buds and thus reducing fruit yields. Surveys to confirm the presence of A. rubi conducted in 2020 found the weevil to be well established in cultivated and wild hosts throughout the Greater Vancouver area and Fraser Valley, British Columbia. At least one species of parasitoid wasp in the genus Pteromalus Swederus (Hymenoptera: Pteromalidae) has been found in association with A. rubi in the province. Future investigations are required to understand the biology of A. rubi in its new range, assess its impact on berries, and develop management strategies.

Identification of planktonic Mallomonadaceae and other Chrysophyceae from selected lakes in the lower Fraser Valley, British Columbia (Canada)

1984 ◽  
Vol 62 (3) ◽  
pp. 525-539 ◽  
Author(s):  
Deborah A. Donaldson ◽  
Janet R. Stein
Keyword(s):  
British Columbia ◽  
North America ◽  
New Records ◽  
The Family ◽  
Lower Fraser Valley ◽  
Fraser Valley

Identification of the Mallomonadaceae of selected lakes in British Columbia reveals 20 species of the genera Chromophysomonas, Chrysosphaerella, Mallomonas, Mallomonopsis, Paraphysomonas, and Synura. The following eight taxa in the family are new records for British Columbia (* indicates those new to North America): Mallomonas asmundiae, M. doignonii var. tenuicostis, M. papillosa, M. transsylvanica, Mallomonopsis ouradion*, Paraphysomonas vestita, Synura glabra, S. splendida*. Thirteen additional Chrysophyceae were also present, with the most diversity observed being in the three lakes studied extensively (Whonock, Como, Munday).

scholarly journals Biotypic Diversity and Resistance to the Raspberry Aphid Amphorophora agathonica in Pacific Northwestern North America

2012 ◽  
Vol 137 (6) ◽  
pp. 445-451 ◽  
Author(s):  
Michael Dossett ◽  
Chaim Kempler
Keyword(s):  
British Columbia ◽  
North America ◽  
North American ◽  
Rubus Idaeus ◽  
Red Raspberry ◽  
Sources Of Resistance ◽  
Breeding Programs ◽  
Production Region ◽  
Northwestern North America ◽  
Amphorophora Agathonica

Resistance to colonization by the raspberry aphid (Amphorophora agathonica Hottes) has been an important objective in North American red raspberry (Rubus idaeus L.) breeding programs since the 1930s because of its effectiveness in controlling the spread of aphid-transmitted viruses in red raspberry. The most widely used source of resistance in North America has been the gene Ag1 from ‘Lloyd George’. The widespread use of Ag1 to control aphids led to the appearance of a resistance-breaking biotype in British Columbia, Canada, in 1990. Our objective was to identify biotypes of A. agathonica present in the commercial red raspberry production region of southwestern British Columbia and northwestern Washington and determine what sources of resistance may still be effective against this pest. We collected 12 aphid isolates and screened them against 15 raspberry cultivars and four selections. Although it has been widely believed that only two biotypes (regular and Ag1-breaking) of A. agathonica were present in the region, we identified six distinct biotypes and characterized them by their ability or inability to colonize a differential set of raspberry cultivars. This has confirmed the loss of previously recognized and unrecognized sources of resistance in some cultivars. The data also support the presence of a seventh biotype that has not yet been observed. In addition, we confirmed resistance from three sources of wild North American red raspberries that hold up to each of these biotypes. Our results will serve as a guide for future efforts to characterize the prevalence of different aphid biotypes in the region and the identification of new sources of resistance for breeding.

Lamproderma ovoideoechinulatum. [Descriptions of Fungi and Bacteria].

2019 ◽  
Author(s):  
T. I. Kryvomaz
Keyword(s):  
British Columbia ◽  
North America ◽  
Geographical Distribution ◽  
Intraspecific Variation ◽  
Fagus Sylvatica ◽  
Economic Impacts ◽  
Conservation Status ◽  
Rubus Idaeus ◽  
Epilobium Angustifolium ◽  
Salix Purpurea

Abstract A description is provided for Lamproderma ovoideoechinulatum, a myxomycete which occurs on dead branches, leaves, stems, and twigs of angiosperms and gymnosperms, and on dead fronds of ferns. Some information on its interactions and habitats, economic impacts, intraspecific variation, dispersal and transmission and conservation status is given, along with details of its geographical distribution (NORTH AMERICA: Canada (British Columbia); ASIA: Japan; EUROPE: Austria, France, Germany, Italy, Norway, Poland, Spain, Switzerland, Ukraine) and associated organisms and substrata (Plantae: Alnus sp. (branch); Apiaceae indet. (stem); Athyrium filix-femina (frond, stem); Carex sp.; Epilobium angustifolium; Fagus sylvatica (twig); Gramineae indet. [also as 'grasses']; Picea sp. [as 'spruce'] (leaf, stem); Plantae indet. (branch, stem); Rubus idaeus, R. ulmifolius, Rubus sp.; Salix purpurea (twig); Sasa kurilensis, Sasa sp.; Vaccinium myrtillus (twig); Protista: Didymium dubium; Lamproderma sauteri, L. zonatum; Meriderma carestiae).

PANDEMIS HEPARANA (LEPIDOPTERA: TORTRICIDAE), A TORTRICID NEW TO NORTH AMERICA, ESTABLISHED IN BRITISH COLUMBIA

1979 ◽  
Vol 111 (8) ◽  
pp. 970-970 ◽  
Author(s):  
Miktat Doǧanlar ◽  
Bryan P. Beirne
Keyword(s):  
British Columbia ◽  
North America ◽  
Middle East ◽  
Fruit Tree ◽  
Deciduous Trees ◽  
Lower Fraser Valley ◽  
Pandemis Heparana ◽  
A Minor ◽  
Fraser Valley ◽  
Trees And Shrubs

Pandemis heparana Den. and Schiff. is common throughout most of Europe and the Middle East to Siberia, China, Korea, and Japan. It feeds on a wide variety of deciduous trees and shrubs. It is regarded as a minor fruit tree pest in some areas as it can damage flowers and fruit.Three males and four females from a larger number reared from 87 larvae collected in the Lower Fraser Valley, British Columbia, were identified as of this species by Dr. A. Mutuura, Biosystematics Research Institute, Agriculture Canada, Ottawa. It apparently has not been recorded previously from North America.

Life History and Behaviour of the Leafhopper Macropsis fuscula (Zett.) (Homoptera: Cicadellidae) in British Columbia

1960 ◽  
Vol 92 (9) ◽  
pp. 707-713 ◽  
Author(s):  
N. V. Tonks
Keyword(s):  
British Columbia ◽  
Life History ◽  
North America ◽  
Wild Hosts

Macropsis fuscula (Zett.), which is a species common in Europe, was first reported in North America in 1952 when specimens were collected from loganberry on Lulu Island, British Columbia. High infestations persisted on Lulu Island until the destruction of most of the loganberry canes there during a severe freeze in November, 1955. New cane grourth was normal in 1956, hot no leaf-hoppers could be found. Only a few nymphs were found in 1957, but there was an average of 14 nymphs per 100 fruit buds in 1958, and 48 nvmphs in 1959, compared to 32 nymphs during the last season of high infestations in 1955. Re-infestation from hardy wild hosts common in the area probably largely accounts for the rapid re-establishment of this pest on cultivated loganberry.

VARIATION AMONG BRITISH COLUMBIA AND NORTHERN ALBERTA POPULATIONS OF RASPBERRIES, RUBUS IDAEUS SUBSPP. STRIGOSUS MICHX.

1972 ◽  
Vol 52 (6) ◽  
pp. 1067-1072 ◽  
Author(s):  
M. C. J. VAN ADRICHEM
Keyword(s):  
British Columbia ◽  
Seed Weight ◽  
Fruit Weight ◽  
Winter Hardiness ◽  
Rubus Idaeus ◽  
Specific Character ◽  
Positive Correlation ◽  
Total Seed ◽  
Northern Alberta ◽  
Number Of Seeds

Several population samples of Rubus idaeus subspp. strigosus Michx. (raspberries) were collected in British Columbia and northern Alberta and a number of characters were studied and compared with the cultivar Trent. Significant differences between populations were found for cane length, number of buds per cane, percentage of buds growing, number of inflorescences and flowers per bud, fruit and seed weight. There was a positive correlation between the total seed weight and the number of seeds, and between the total seed and fruit weight. No distinct types could be established based on location or elevation. None of the populations showed significantly better winter hardiness than the cultivar Trent, and although some had a specific character that was superior, none was found to have overall superiority.

scholarly journals Analysis of aircraft and satellite measurements from the Intercontinental Chemical Transport Experiment (INTEX-B) to quantify long-range transport of East Asian sulfur to Canada

2008 ◽  
Vol 8 (11) ◽  
pp. 2999-3014 ◽  
Author(s):  
A. van Donkelaar ◽  
R. V. Martin ◽  
W. R. Leaitch ◽  
A. M. Macdonald ◽  
T. W. Walker ◽  
...  
Keyword(s):  
British Columbia ◽  
North America ◽  
Long Range ◽  
East Asian ◽  
Chemical Transport ◽  
Long Range Transport ◽  
Free Troposphere ◽  
Range Transport ◽  
Transport Experiment ◽  
Sulfur Emissions

Abstract. We interpret a suite of satellite, aircraft, and ground-based measurements over the North Pacific Ocean and western North America during April–May 2006 as part of the Intercontinental Chemical Transport Experiment Phase B (INTEX-B) campaign to understand the implications of long-range transport of East Asian emissions to North America. The Canadian component of INTEX-B included 33 vertical profiles from a Cessna 207 aircraft equipped with an aerosol mass spectrometer. Long-range transport of organic aerosols was insignificant, contrary to expectations. Measured sulfate plumes in the free troposphere over British Columbia exceeded 2 μg/m3. We update the global anthropogenic emission inventory in a chemical transport model (GEOS-Chem) and use it to interpret the observations. Aerosol Optical Depth (AOD) retrieved from two satellite instruments (MISR and MODIS) for 2000–2006 are analyzed with GEOS-Chem to estimate an annual growth in Chinese sulfur emissions of 6.2% and 9.6%, respectively. Analysis of aircraft sulfate measurements from the NASA DC-8 over the central Pacific, the NSF C-130 over the east Pacific and the Cessna over British Columbia indicates most Asian sulfate over the ocean is in the lower free troposphere (800–600 hPa), with a decrease in pressure toward land due to orographic effects. We calculate that 56% of the measured sulfate between 500–900 hPa over British Columbia is due to East Asian sources. We find evidence of a 72–85% increase in the relative contribution of East Asian sulfate to the total burden in spring off the northwest coast of the United States since 1985. Campaign-average simulations indicate anthropogenic East Asian sulfur emissions increase mean springtime sulfate in Western Canada at the surface by 0.31 μg/m3 (~30%) and account for 50% of the overall regional sulfate burden between 1 and 5 km. Mean measured daily surface sulfate concentrations taken in the Vancouver area increase by 0.32 μg/m3 per 10% increase in the simulated fraction of Asian sulfate, and suggest current East Asian emissions episodically degrade local air quality by more than 1.5 μg/m3.

Japewia Subaurifera, A New Lichen Genus and Species From North-West Europe and Western North America

1990 ◽  
Vol 22 (3) ◽  
pp. 205-212 ◽  
Author(s):  
T. Tønsberg
Keyword(s):  
British Columbia ◽  
North America ◽  
Western North America ◽  
Coniferous Trees ◽  
North West

AbstractThe genus Japewia Tønsb. is introduced to accommodate three species including J. subaurifera Muhr & Tønsb. sp. nov. based on material from Norway, Sweden, Finland, Scotland, Canada (British Columbia) and U.S.A. (Washington). This species is closely related to Lecidea tornoensis Nyl. but is distinguished in being sorediate and by the production of lobaric acid (accessory) and acetone-soluble pigments. It grows on bark of deciduous and coniferous trees. Lecidea carrollii Coppins & P. James and L. tornoensis Nyl. are transferred to Japewia.

The Lower Jurassic phosphorites of southeastern British Columbia and terrane accretion to western North America

1989 ◽  
Vol 26 (8) ◽  
pp. 1612-1616 ◽  
Author(s):  
T. P. Poulton ◽  
J. D. Aitken
Keyword(s):  
British Columbia ◽  
North America ◽  
Oceanic Crust ◽  
West Coast ◽  
Cold Water ◽  
Lower Jurassic ◽  
Depositional Model ◽  
Western North America ◽  
The West ◽  
Terrane Accretion

Sinemurian phosphorites in southeastern British Columbia and southwestern Alberta conform with the "West Coast type" phosphorite depositional model. The model indicates that they were deposited on or near the Early Jurassic western cratonic margin, next to a sea or trough from which cold water upwelled. This suggests that the allochthonous terrane Quesnellia lay well offshore in Sinemurian time. The sea separating Quesnellia from North America was partly floored by oceanic crust ("Eastern Terrane") and partly by a thick sequence of rifted, continental terrace wedge rocks comprising the Purcell Supergroup and overlying Paleozoic sequence. This sequence must have been depressed sufficiently that access of upwelling deep currents to the phosphorite depositional area was not impeded.

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