An economic analysis of the invasive plant problem associated with the horticulture industry in North America

2013 ◽  
pp. 259-276 ◽  
Author(s):  
Edward Barbier ◽  
Duncan Knowler ◽  
Johnson Gwatipedza ◽  
Sarah Reichard
Forests ◽  
2012 ◽  
Vol 3 (3) ◽  
pp. 840-852 ◽  
Author(s):  
Stephanie J. Hayes ◽  
Eric J. Holzmueller

2018 ◽  
Vol 20 (10) ◽  
pp. 2997-3007 ◽  
Author(s):  
Michael J. Schuster ◽  
Peter B. Reich

2020 ◽  
Author(s):  
Julissa Rojas-Sandoval

Abstract Trachypogon spicatus is a perennial grass with a large native distribution range extending from North America to South America, and across tropical and subtropical Africa. This species is weedy within its native range and is considered a weed of plantations in Tanzania and a weed of pastures across Africa. Despite being included in a list of invasive plant species in Cuba, no information is provided regarding its impact, and another source records T. spicatus as native to Cuba.


PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7986
Author(s):  
Jeffery A. DeLong ◽  
Jane E. Stewart ◽  
Alberto Valencia-Botín ◽  
Kerry F. Pedley ◽  
James W. Buck ◽  
...  

Uromyces transversalis, the causal agent of Gladiolus rust, is an invasive plant pathogen in the United States and is regulated as a quarantine pathogen in Europe. The aim of this research was to: (i) determine the origin of introductions of U. transversalis to the United States, (ii) track the movement of genotypes, and (iii) understand the worldwide genetic diversity of the species. To develop molecular markers for genotyping, whole genome sequencing was performed on three isolates collected in the United States. Genomes were assembled de novo and searched for microsatellite regions. Primers were developed and tested on ten isolates from the United States resulting in the identification of 24 polymorphic markers. Among 92 isolates collected from Costa Rica, Mexico, New Zealand, Australia, and the United States there were polymorphisms within isolates with no genotypic diversity detected among isolates; however, missing data among the New Zealand and Australia isolates due to either poor amplification of degraded DNA or null alleles as a result of genetic differences made it difficult to generate conclusions about these populations. The microsatellite loci and flanking regions showed high diversity and two divergent genomes within dikaryotic individuals, yet no diversity among individuals, suggesting that the invasive U. transversalis populations from North America are strictly clonal.


2006 ◽  
Vol 86 (3) ◽  
pp. 887-906 ◽  
Author(s):  
Jacob N. Barney ◽  
Nishanth Tharayil ◽  
Antonio DiTommaso ◽  
Prasanta C. Bhowmik

Polygonum cuspidatum (Japanese knotweed) is an introduced perennial geophyte in the buckwheat family (Polygonaceae). The phytogeographic distribution of P. cuspidatum in North America suggests a large number of intentional introductions via ornamental plantings from 1870 to 2000, followed by secondary spread from these foci. This species is most pernicious along riparian corridors and road and railroad rights-of-way, reducing visibility, displacing native species, negatively affecting native wildlife, and causing alterations in natural hydrologic processes. Although non-hybrid seed recruitment has not been observed in Europe because of the presence of male-sterile clones only, dispersal of seeds and stem and rhizome fragments by flowing water does occur in North America and populations are readily established from these sources. The primary means of local and regional range expansion is human-mediated transport of rhizome-infested soil. Hybridization is common with the congener P. sachalinense in the introduced ranges of North America and Europe resulting in the equally noxious P. × bohemicum. Key words: Japanese knotweed, Mexican bamboo, Polygonum, Fallopia, Reynoutria, POLCU, invasive plant, weed biology


2013 ◽  
Vol 6 (2) ◽  
pp. 268-280 ◽  
Author(s):  
John F. Gaskin ◽  
Mark Schwarzländer ◽  
Hariet L. Hinz ◽  
Livy Williams ◽  
Esther Gerber ◽  
...  

AbstractPerennial pepperweed is an invasive plant species in North America, native to temperate Eurasia and northern Africa. Effective biological control depends upon correct taxonomic identification. Therefore, we investigated morphological and genetic data (cpDNA sequences and amplified fragment length polymorphisms [AFLP]) in its native range, where the species is at times treated as multiple taxa (L. latifolium, L. affine and L. obtusum). We also analyzed genetic data to determine the number and distribution of haplotypes and genotypes in the invaded range. Using Bayesian analysis, we found three clusters of AFLP genotypes in the native range, but little correlation between these clusters and morphological characters used to distinguish taxa. Also, we found combinations of morphological character states within many native range plants that are incompatible with current species descriptions, offering no support for splitting L. latifolium sensu lato into three species. In North America 97% of the genetic variation was among populations and there were only eight AFLP genotypes in 288 plants, suggesting few introductions or a severe bottleneck, and little or no creation of new genotypes since introduction. We found plants in the native range that are genetically similar (88 to 99%) to six of the eight invasive AFLP genotypes, suggesting that Kazakhstan and China are origins for much of the North American invasion.


Sign in / Sign up

Export Citation Format

Share Document