THE BIOLOGY OF CANADIAN WEEDS.: 28. Verbascum Thapsus L. and V. Blattaria L.

1978 ◽  
Vol 58 (2) ◽  
pp. 401-413 ◽  
Author(s):  
KATHERINE L. GROSS ◽  
PATRICIA A. WERNER

Verbascum thapsus L., common mullein, and V. blattaria L., moth mullein, are introduced weeds of pasture, abandoned fields, and roadsides occurring in widely-spaced, but dense patches in Southern Ontario, Quebec, the Maritime Provinces, British Columbia and throughout the U.S.A. Original research and information from other studies are incorporated into a summary of the biology of these two fugitive plant species.

1975 ◽  
Vol 55 (3) ◽  
pp. 783-794 ◽  
Author(s):  
PATRICIA A. WERNER

Dipsacus sylvestris Huds., wild teasel, is an introduced weed of pastures, abandoned fields and roadsides occurring in widely-spaced but very dense patches in southern Ontario, Quebec, northeastern U.S.A., and northwestern U.S.A. Original research and information from other studies are incorporated into a summary of the biology of this fugitive plant species.


Weed Science ◽  
1980 ◽  
Vol 28 (1) ◽  
pp. 27-30 ◽  
Author(s):  
M. G. Maw

The host specificity of mullein moth (Cucullia verbasci L.) [Lepidoptera: Caradrinidae (Noctuidae)] and its suitability as a biological control agent of the common mullein (Verbascum thapsus L.) (Scrophulariaceae) were investigated. Thirty-six plant species in 10 families were tested but sustained feeding by the insect and consistent development occurred only on mullein species. Nibbling on plants other than on mulleins did not prolong the life of the insect significantly longer than larvae without food. Thus, the mullein moth is considered to be a safe agent to release against mullein.


Planta Medica ◽  
2015 ◽  
Vol 81 (11) ◽  
Author(s):  
D Weingärtener Rosa ◽  
K Hagiwara ◽  
AD Wright

2005 ◽  
Vol 119 (2) ◽  
pp. 245 ◽  
Author(s):  
A. L. Parachnowitsch ◽  
E. Elle

The Garry Oak Ecosystem (GOE) is a fragmented and endangered ecosystem in Canada, and is currently the focus of conservation and restoration efforts in British Columbia. However, little is known about the basic biology of GOE forbs, or their relationships with pollinating insects. We monitored wildflowers and their insect visitors in 25 quadrats within a 25 × 25 metre plot, located in a fragment of the GOE near Duncan, British Columbia, for six weeks (the majority of the flowering period). Overall, 21 native and non-native forb species flowered in our quadrats during the survey, and we observed an additional six forb species flowering outside of our quadrats. Eight forbs were visited within quadrats by a total of 13 insect taxa, identified to morphospecies. Visits by eight additional morphospecies were observed outside of the quadrats. In general, visitation was low; however, most insect morphospecies were observed visiting more than one plant species, and most plant species were visited by more than one insect morphospecies, suggesting that pollination may be generalised in this community. A Chi-squared analysis indicated that insect visitation was not proportional to the relative abundance of forbs, with higher than expected visitation to Common camas (Camassia quamash), and no observed visits to 11 species, most with very small (putatively unattractive) flowers. The most frequent insect visitor was the introduced Honeybee, Apis mellifera, followed by native mason bees (Osmia spp.) and mining bees (Andrena spp.). Our observations provide baseline data for future, detailed studies that should investigate the importance of plant-pollinator mutualisms for sustainability of populations and communities in this rare ecosystem.


1985 ◽  
Vol 63 (12) ◽  
pp. 2240-2242
Author(s):  
Brian M. Wikeem ◽  
Reg F. Newman

Field studies and herbarium searches during 1983 and 1984 have revealed range extensions of three grassland plant species in the southern interior of British Columbia. These species include Allium geyeri Wats. var. tenerum Jones, Gaura coccinea (Nutt.) Pursh, and Sidalcea oregana (Nutt.) Gray ssp. oregana var. procera C. L. Hitchc. All three taxa were previously unknown to the Kamloops area and Sidalcea oregana is new to the province and Canada.


Zootaxa ◽  
2012 ◽  
Vol 3329 (1) ◽  
pp. 31 ◽  
Author(s):  
ROBERTO CALDARA ◽  
ROBERTO CASALINI ◽  
COSIMO BAVIERA

All taxa closely related to or synonymized with Rhinusa tetra (Fabricius, 1792) are studied, including the available type mate-rial. Four species are considered taxonomically valid: Rhinusa tetra, R. comosa (Rosenschoeld, 1838), R. moroderi (Reitter,1906), R. verbasci (Rosenschoeld, 1838). The following four new synonymies are proposed: R. tetra (= Gymnetron eoumRosenschoeld, 1838 syn. n.; = Cleopus uncinatus Dufour, 1843 syn. n.; = Cleopus verbasci Dufour, 1843 syn. n.); R. moroderi(= Gymnetron otini Hustache, 1946 syn. n). Neotypes are designated for Cionus amictus Germar, 1821, Cleopus uncinatus andCleopus verbasci. Lectotypes are designated for Curculio teter, Gymnetron comosum, Gymnetron crassirostre Lucas, 1849,Gymnetron eoum, Gymnetron fuscescens Rosenschoeld, 1838, Gymnetron haemorrhoum Rosenhauer, 1847, Gymnetron moro-deri, Gymnetron plagiellum Gyllenhal, 1838, Gymnetron trigonale Gyllenhal, 1838 and Gymnetron verbasci, all currentlyincluded in Rhinusa. A key separating the four valid species is supported by diagnoses, biological notes, distributional data andillustrations. These new findings are important because R. tetra in the broad sense was proposed as a potential candidate for the biological control of invasive Common Mullein (Verbascum thapsus L.) in North America.


2019 ◽  
Vol 40 ◽  
pp. 118-126
Author(s):  
Clémentine Lepinay ◽  
Tomáš Dostálek ◽  
Hana Pánková ◽  
Martina Svobodová ◽  
Jana Rydlová ◽  
...  

1980 ◽  
Vol 112 (7) ◽  
pp. 741-744 ◽  
Author(s):  
W. G. H. Ives ◽  
J. C. Cunningham

A polyhedrosis virus was found in collections of Bruce spanworm, Operophtera bruceata (Hulst), larvae from two locations in British Columbia in 1957 (O. N. Morris, pers. comm.). Bruce spanworm was prevalent in the Maritime Provinces and Quebec in 1963 and 1964 and a polyhedrosis virus was credited with terminating this outbreak (Forbes et al. 1964, 1965; Martineau 1964, 1965). A detailed examination of the virus from Quebec showed that it was a singly-embedded (unicapsid) nuclear polyhedrosis virus (Smirnoff 1964) which is classified as Baculovirus subgroup A (Matthews 1979).


2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Eibhlín McCarthy ◽  
Jim M. O'Mahony

Common mullein weed (Verbascum thapsus) has a large number of synonyms and old local “nick names” which connect the plant with mycobacteria. A strong history of medicinal use has been uncovered for the treatment of tuberculosis, tubercular skin disease, leprosy, and mycobacterial disease in animals. Here, we examine problems encountered in treating such diseases today, the historical and scientific links between mullein and pathogenic bacteria, and the possibility that this common weed could harbour the answer to beating one of the world's biggest infectious killers.


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