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Web URL(s): | http://www.jstor.org/stable/4042702 Last checked: 05/02/2014 Access conditions: Item is within a limited-access website http://www.jstor.org/stable/pdfplus/4042702.pdf Last checked: 05/02/2014 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Peterson, S. C.;
Parochetti, J. V. |
Author Affiliation: | Peterson: Program Specialist, U. S. Dep. Agr., Agric. Stab. Cons. Serv.; College Park, MD; Parochetti: Assoc. Prof., Dep. of Agron., Univ. of Maryland, College Park, MD |
Title: | Canada thistle (Cirsium arvense) control in timothy (Phleum pratense) and red clover (Trifolium pratense) sward |
Source: | Weed Science. Vol. 26, No. 3, May 1978, p. 215-220. |
Publishing Information: | Champaign, IL: Weed Science Society of America |
# of Pages: | 6 |
Related Web URL: | http://www.jstor.org/stable/info/4042702 Last checked: 05/02/2014 Notes: Abstract only |
Keywords: | TIC Keywords: Cirsium arvense; Phleum pratense; Trifolium pratense; Dicamba; Picloram; 2,4-D; Necrosis
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Abstract/Contents: | "Two of three herbicides were applied repetitively in each of the years to a dense infestation of Canada thistle [Cirsium arvense (L.) Scop.] in timothy (Phleum pratense L.) and red clover (Trifolium pratense L.) sward in Carroll County, Maryland during the period 1969 to 1971. Picloram (4-amino-3,5,6-tricloropicolinic acid), eliminated red clover from the sward after the first year, and controlled 95 to 100% of the Canada thistle in the third year of treatment. The addition of a non-phytotoxic oil to picloram did not improve its efficiency. Dicamba (3,6-dichloro-o-anisic acid) reduced 57 to 87% of the red clover and 72% of the Canada thistle in the first year at a dosage of 1.12 kg/ha, but effected only 42% control in the third year of treatment. Both an amine and ester formulations of 2,4-D [(2,4-dichlorophenoxy) acetic acid] effected variable Canada thistle control and reduced the red clover stand 10 to 15% following the first application. The timothy yield was not significantly reduced during the 3 years of repeated application of all herbicides, but some necrosis of leaves was noted with dicamba and the high rate of 2,4-D. Soybeans [Glycine max (L.) Merr. 'Delmar'] planted 1 yr following the last picloram application had curled leaves initially, but outgrew the injury. Soybeans planted 2 yr following the last application of the herbicides showed no significant reduction in yield indicating herbicide residues had been reduced to tolerable levels." |
Language: | English |
References: | 27 |
See Also: | Other items relating to: 2, 4 - D in Turf |
Note: | Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Peterson, S. C., and J. V. Parochetti. 1978. Canada thistle (Cirsium arvense) control in timothy (Phleum pratense) and red clover (Trifolium pratense) sward. Weed Sci. 26(3):p. 215-220. |
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| Web URL(s): http://www.jstor.org/stable/4042702 Last checked: 05/02/2014 Access conditions: Item is within a limited-access website http://www.jstor.org/stable/pdfplus/4042702.pdf Last checked: 05/02/2014 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: SB 610 .W38 |
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