Timing Control Efforts to Limit Seed Set of Common Mullein (Verbascum thapsus)

2012 ◽  
Vol 5 (3) ◽  
pp. 390-394 ◽  
Author(s):  
Hannah D. Wilbur ◽  
Ruth A. Hufbauer

Control options for the nonnative common mullein are of increasing interest to land managers in the west. Common mullein is a prolific seed producer, with a single plant able to produce well over 100,000 seeds. We found that mechanical control of common mullein before mature seed capsules developed along the raceme significantly reduced viable seed production. Seeds from immature capsules had very low viability (early reproductive stage = 0.08%, 95% CI = 0.06%, 0.67%; mid reproductive stage = 1.52%, 95% CI = 0.49%, 3.11%). This information allows managers to time their management efforts so that they can reduce the amount of plant material that must be disposed of in order to control the spread of common mullein seeds.

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

2017 ◽  
Vol 86 (1) ◽  
Author(s):  
Paweł Wąsowicz ◽  
Łukasz Folcik ◽  
Adam Rostański

<em>Blechnum spicant</em> var. <em>fallax</em> Lange is a fern taxon endemic to Iceland where it occurs in the vicinity of hot springs on geothermally heated soils. The taxon was first described by a Danish botanist Johan Martin Christian Lange in 1880 on the basis of plant material collected by Christian Grønlund in Iceland. Because its holotype was not designated in the protologue, we examined the extant original material including illustrations from <em>Flora Danica</em> and a single plant on sheet C10021769 (deposited in C) that was the basis for the respective plate. We select this specimen as the lectotype of <em>Blechnum spicant</em> var. <em>fallax</em>.


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.


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.


2018 ◽  
Vol 52 (3) ◽  
pp. 234-240 ◽  
Author(s):  
Weerasin Sonjaroon ◽  
Kanapol Jutamanee ◽  
Ornusa Khamsuk ◽  
Jutiporn Thussagunpanit ◽  
Lily Kaveeta ◽  
...  

1991 ◽  
Vol 69 (11) ◽  
pp. 2448-2454 ◽  
Author(s):  
S. P. Vander Kloet

Self pollen of Vaccinium corymbosum germinates as well as outcross (compatible) pollen from the same population and more rapidly than compatible pollen from more distant populations. When a mixture of self and compatible pollen, either from the same or incontiguous populations, is applied to the stigma, the time required for berry ripening is significantly reduced compared with compatible pollen alone, although seed set also decreases significantly. Adding compatible pollen from different pollen donors significantly increased seed set but also increased the time for berry maturation by 5 days. Self pollen in conjunction with compatible pollen resulted in a 50% loss of viable seed production and an 8% gain in berry maturation time. Self-pollination resulted in embryo abortion in V. corymbosum. Key words: pollination, Vaccinium, seed set, outcrossing.


2001 ◽  
Vol 37 (1) ◽  
pp. 40-43 ◽  
Author(s):  
Arzu U. Turker ◽  
N. D. Camper ◽  
E. Gurel

1999 ◽  
Vol 17 (3) ◽  
pp. 137-140 ◽  
Author(s):  
Mary Hockenberry Meyer ◽  
Courtney L. Tchida

Abstract Forty-one taxa of Miscanthus grown in USDA Hardiness Zones 4, 5, 6, and 7 were examined in 1996 and 1997 for seed set and viability. Although laboratory results varied widely between years, climatic zones, and cultivars, many plants set viable seed. Eleven types had &lt;18% viable seed, including ‘Morning Light’, ‘Variegatus’ and ‘Zebrinus’, and appear to represent the least risk for becoming invasive plants, especially in northern climates. Other characteristics of Miscanthus are discussed in terms of invasive potential in the United States.


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