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Tables 5 and 6 from:


Bradley, K. W., Monnig, N. H., Legleiter, T. R., and Wait, J. D. 2007. Influence of glyphosate tank-mix combinations and application timings on weed control and yield in glyphosate-resistant soybean. Online. Crop Management doi:10.1094/CM-2007-0419-01-RS.



Table 5. Influence of glyphosate and tank-mix combinations on visual weed control 30 days after the last herbicide applications in glyphosate-resistant soybean.

Treatmentsw Rate
(kg/ha)		 Percent visual weed controlxy (%)
AMATA AMBEL CHEAL IPOSP POLPY SETSP SIDSP XANST
Glyphosate 1.10 96 a   96 a   98 ab   88 c-f   96 a-d 99 a   98 a 99 a
  + acifluorfen 0.15 96 a   95 ab   96 abc   92 a-d   99 a 99 a   96 ab 99 a
  + acifluorfen 0.21 97 a   95 ab   95 abc   93 a   99 a 99 a   94 b 99 a
  + thifensulfuron 0.09 96 a   97 a   94 abc   87 ef   98 abc 99 a   96 ab 99 a
  + imazamox 0.016 96 a   98 a   98 a   86 f   95 bcd 99 a   96 ab 99 a
  + imazamox 0.02 97 a   97 a   96 abc   86 f   96 a-d 99 a   97 ab 99 a
  + bentazon 0.56 92 b   92 b   92 c   90 a-e   98 abc 99 a   95 ab 99 a
  + lactofen 0.10 98 a   96 ab   93 bc   91 a-d   98 ab 99 a   95 ab 99 a
  + cloransulam 0.009 97 a   96 a   97 abc   88 def   97 a-d 99 a   97 ab 99 a
  + cloransulam 0.018 96 a   96 a   98 a   92 abc   94 cd 99 a   96 ab 99 a
  + chlorimuron 0.004 97 a   96 a   94 abc   89 b-f   93 d 99 a   96 ab 99 a
  + fomesafen 0.10  95 ab   96 ab   97 abc   93 a   97 a-d 99 a   97 ab 99 a
  + flumetsulam 0.007 98 a   97 a   97 abc   88 ef   98 abc 99 a   96 ab 99 a
Glyphosate 1.20 98 a   97 a   95 abc   93 ab   97 a-d 99 a   97 ab 99 a
Environmentsz          4 2 1 4 2 4 2 3

 w Plus signs indicate tank-mix combinations of the herbicide in question with glyphosate at 1.1 kg/ha. All treatments applied with 2.8 kg ammonium sulfate per hectare.

 x Weed abbrebiations: AMATA = common waterhemp; AMBEL = common ragweed; CHEAL = common lambsquarters; IPOSP = morningglory species; POLPY = Pennsylvania smartweed; SETSP = foxtail species; SIDSP = prickly sida; XANST = common cocklebur.

 y Means followed by the same letter are not significantly different (LSD 0.05).

 z Number of environments in which a species was rated.



Table 6. Influence of glyphosate and tank-mix combinations on weed density at harvest in glyphosate-resistant soybean.

Treatmentsw Rate
(kg/ha)		 Weed density at harvestxy (# plants/18 m²)
AMATA AMBEL CHEAL POLPY SETSP SIDSP XANST
Untreated — 212 a  118 a   124 a 60 a    1638 a     89 a 60 a   
Glyphosate 1.10   30 bc     8 bc    28 b 5 b 16 b     14 b 5 b
  + acifluorfen 0.15   21 bc    12 bc    30 b 6 b 10 b     23 b 6 b
  + acifluorfen 0.21   28 bc     9 bc    19 b 0 b 1 b     14 b 0 b
  + thifensulfuron 0.09   20 bc    12 bc      5 b 0 b 3 b     16 b 0 b
  + imazamox 0.016   23 bc     4 c      9 b 4 b 1 b     13 b 4 b
  + imazamox 0.02   35 bc     4 c    13 b 1 b 19 b     18 b 2 b
  + bentazon 0.56   42 b    29 b    26 b 0 b 15 b     21 b 0 b
  + lactofen 0.10   25 bc    14 bc      8 b 1 b 8 b     14 b 1 b
  + cloransulam 0.009   12 bc     6 c    23 b 0 b 2 b     12 b 0 b
  + cloransulam 0.018     6 c     3 c    12 b 1 b 2 b     20 b 1 b
  + chlorimuron 0.004   16 bc     3 c    21 b 0 b 7 b     14 b 0 b
  + fomesafen 0.10   14 bc    11 bc    11 b 0 b 3 b     16 b 0 b
  + flumetsulam 0.007   17 bc     5 c    12 b 0 b 5 b     14 b 0 b
Glyphosate 1.20   28 bc     5 c    22 b 3 b 12 b     21 b 3 b
Environmentsz -- 4 2 2 3 4 4 3

 w Plus signs indicate tank-mix combinations of the herbicide in question with glyphosate at 1.1 kg/ha. All treatments applied with 2.8 kg ammonium sulfate per hectare.

 x Weed abbrebiations: AMATA = common waterhemp; AMBEL = common ragweed; CHEAL = common lambsquarters; POLPY = Pennsylvania smartweed; SETSP = foxtail species; SIDSP = prickly sida; XANST = common cocklebur.

 y Means followed by the same letter are not significantly different (LSD 0.05).

 z Number of environments in which a species was present and counted.




© 2007 Plant Management Network.