North Dakota State University

NDSU

North Central Research Extension Center
Brian Jenks
Weed Scientist
bjenks@ndsuext.nodak.edu

 
Denise Markle
Research Specialist
dmarkle@ndsuext.nodak.edu
Gary Willoughby
Research Specialist
gwillough@ndsuext.nodak.edu
5400 Highway 83 South
Minot, ND  58701-7662
701.857.7679
701.857.7676 (fax)

Study Name: Weed control in dry beans

Study Number: 9911

Objectives: Evaluate weed control with registered and experimental herbicides

Results: Dry bean stands were reduced approximately 25% in the Valor treatments. Spartan did not cause a stand reduction. Raptor + Quad 7 caused some initial leaf discoloration, but the dry beans quickly recovered. Dry bean yield in the Spartan plot was lower than that of Valor primarily due to lack of grass control.

Raptor or Raptor + Basagran combinations effectively controlled foxtails, wild oat, redroot pigweed, and wild mustard. Raptor was notably weaker on wild buckwheat which made harvest more difficult. Valor, Spartan, and Python were fair to excellent on redroot pigweed. Valor and Spartan somewhat suppressed wild buckwheat, however, lack of grass control probably aided in shading and holding down wild buckwheat.

Table. Weed control in dry beans.

Jul 8

Jul 26

July 8

Sept 14

Treatment Rate Injury Injury Fxtla Rrpw Wibw Fxtla Rrpw Wibw Yield
% % --------Control (%)------- -------Control (%)-------- lb/A
Untreated 0 0 0 0 0 0 0 0 755
Raptor + 3 fl oz 1 0 97 97 55 99 99 36 1950
   NIS    0.25%
Raptor + 4 fl oz 2 0 97 98 56 99 99 40 2189
   NIS    0.25%
Raptor + 4 fl oz 3 0 99 99 64 100 99 35 2070
   Quad 7    1%
Raptor + 4 fl oz 2 0 98 99 56 99 99 35 1903
   COC    1%
Raptor + 4 fl oz 1 0 98 98 59 99 99 36 1989
   NIS +    0.25%
   28 % N    1 qt
Raptor + 4 fl oz 0 0 97 98 59 99 98 38 1845
   Basagran +    8 fl oz
   NIS +    0.25%
   28 % N    1 qt
Raptor + 4 fl oz 1 0 99 98 69 99 99 35 2028
   Basagran +    16 fl oz
   NIS +    0.25%
   28 % N    1 qt
Raptor + 2 fl oz 0 0 89 94 48 93 97 35 1920
   Basagran +    8 fl oz
   NIS +    0.25%
   28 % N    1 qt
Valor 1.25 oz 10 4 69 96 89 40 97 74 1520
Valor 2 oz 12 5 69 94 82 43 95 68 1376
Spartan 0.125 lb ai 0 0 25 68 70 18 70 58 1107
Spartan 0.25 lb ai 0 0 50 89 68 33 86 59 1483
Python 1 oz 0 0 28 100 23 18 97 13 1400
LSD 3 1 10 8 14 8 6 10 423
CV 89 98 10 7 17 8 5 18 18

a Fxtl=Green and yellow foxtail


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Last Updated: Thursday, May 27, 2004 02:49:18 PM
Published by North Dakota State University