scholarly journals Larinus minutus(Coleoptera: Curculionidae) andUrophora quadrifasciata(Diptera: Tephritidae), Evidence for Interaction and Impact on Spotted Knapweed in Arkansas

2016 ◽  
Vol 45 (3) ◽  
pp. 658-662
Author(s):  
C. R. Minteer ◽  
T. J. Kring ◽  
R. N. Wiedenmann
Keyword(s):  
Spotted Knapweed ◽  
Larinus Minutus

Arbuscular mycorrhizal fungi enhance spotted knapweed growth across a riparian chronosequence

2009 ◽  
Vol 12 (6) ◽  
pp. 1481-1490 ◽  
Author(s):  
Mary J. Harner ◽  
Daniel L. Mummey ◽  
Jack A. Stanford ◽  
Matthias C. Rillig
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
Spotted Knapweed

scholarly journals Enantiomeric-Dependent Phytotoxic and Antimicrobial Activity of (±)-Catechin. A Rhizosecreted Racemic Mixture from Spotted Knapweed

2002 ◽  
Vol 128 (4) ◽  
pp. 1173-1179 ◽  
Author(s):  
Harsh Pal Bais ◽  
Travis S. Walker ◽  
Frank R. Stermitz ◽  
Ruth A. Hufbauer ◽  
Jorge M. Vivanco
Keyword(s):  
Antimicrobial Activity ◽  
Racemic Mixture ◽  
Spotted Knapweed

scholarly journals Biological control and precipitation effects on spotted knapweed (Centaurea stoebe): empirical and modeling results

Ecosphere ◽  
2013 ◽  
Vol 4 (7) ◽  
pp. art80 ◽  
Author(s):  
Anastasia Maines ◽  
David Knochel ◽  
Timothy Seastedt
Keyword(s):  
Biological Control ◽  
Spotted Knapweed ◽  
Centaurea Stoebe

Elaiosomes on Weed Seeds and the Potential for Myrmecochory in Naturalized Plants

Weed Science ◽  
1990 ◽  
Vol 38 (6) ◽  
pp. 615-619 ◽  
Author(s):  
Robert W. Pemberton ◽  
Delilah W. Irving
Keyword(s):  
United States ◽  
The United States ◽  
Leafy Spurge ◽  
Spotted Knapweed ◽  
Canada Thistle ◽  
Weed Seeds ◽  
Naturalized Plants ◽  
Bull Thistle ◽  
Diffuse Knapweed

Seeds of plants naturalized in the United States were examined for the presence of elaiosomes. Seeds of 47 species belonging to 13 families (Asteraceae, Boraginaceae, Dipsacaceae, Euphorbiaceae, Fabaceae, Fumariaceae, Lamiaceae, Liliaceae, Poaceae, Polygonaceae, Resedaceae, Rosaceae, and Solanaceae) were found to have elaiosomes, indicating that these species are probably mymecochorous, i.e., dispersed by ants. These include important rangeland weeds such as bull thistle, Canada thistle, musk thistle, diffuse knapweed, spotted knapweed, and leafy spurge. Myrmecochory in naturalized species may enhance their weediness in areas where they are established and assist their colonization of new and relatively closed communities.

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