Paper · 2004 · Weed Technology

Annual Grass Control in Peanut (Arachis hypogaea) with Clethodim and Imazapic1

IAN C. BURKE; ANDREW J. PRICE; JOHN W. WILCUT; et al.

14
claims
28
verbatim quotes
42
citations
2
research areas
—
Not open access

Abstract

Field experiments were conducted to evaluate possible interactions of clethodim with imazapic applied as mixtures or sequentially for control of broadleaf signalgrass, fall panicum, goosegrass, and large crabgrass. Imazapic at 70 g ai/ha alone controlled grass weeds inconsistently, whereas clethodim at 140 g ai/ha alone controlled the same weeds at least 99%. Imazapic did not affect broadleaf signalgrass control by clethodim. Reduced control of fall panicum, goosegrass, and large crabgrass was observed when clethodim and imazapic were applied in mixture. Antagonism of clethodim occurred when clethodim was applied 1 d before or up to 3 d after application of imazapic (fall panicum and large crabgrass). Antagonism of goosegrass control was noted when imazapic was applied 3 d before or up to 7 d after application of clethodim. In other experiments, large crabgrass and Texas panicum control by clethodim (70 and 140 g/ha) applied alone or with imazapic (70 g/ ha) or bentazon (1.1 kg ai/ha) plus 2,4-DB (0.28 kg ai/ha) either with or without ammonium sulfate (2.8 kg/ha) was evaluated. Texas panicum control by clethodim was reduced by imazapic regardless of the ammonium sulfate rate. However, large crabgrass control by imazapic was not affected in these experiments. Control of both grasses by clethodim was reduced substantially by bentazon plus 2,4-DB, although in some instances ammonium sulfate improved control when in mixture. Ammonium sulfate improved control by clethodim in some instances irrespective of the broadleaf–sedge herbicide treatments.Nomenclature: Bentazon; clethodim; 2,4-DB; imazapic; broadleaf signalgrass, Brachiaria platyphylla (Griseb) Nash #3 BRAPP; fall panicum, Panicum dichotomiflorum L. # PANDI; goosegrass, Eleusine indica L. Gaertn. # ELEIN; large crabgrass, Digitaria sanguinalis L. Scop. # DIGSA; Texas panicum, Panicum texanum Buckl. # PANTE.Additional index words: Ammonium sulfate, antagonism, herbicide compatibility, herbicide interaction, sequential application.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 14

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Imazapic alone controlled grass weeds inconsistently.

Treatment
Imazapic at 70 g ai/hae0
Interactor
grass weedse0weed
Outcome
grass weedse0
Direction
inconsistentlye0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“Peanut (Arachis hypogaea)”

✓ located verbatim in the source · title, characters 24–49 · show in text ↑
e0

“Imazapic at 70 g ai/ha alone controlled grass weeds inconsistently”

✓ located verbatim in the source · abstract, characters 215–281 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Clethodim alone controlled the same grass weeds by at least 99%.

Treatment
clethodim at 140 g ai/hae0
Interactor
weedse0weed
Outcome
the same weedse0
Direction
controllede0
Value
at least 99%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“Peanut (Arachis hypogaea)”

✓ located verbatim in the source · title, characters 24–49 · show in text ↑
e0

“clethodim at 140 g ai/ha alone controlled the same weeds at least 99%”

✓ located verbatim in the source · abstract, characters 291–360 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Imazapic did not change clethodim control of broadleaf signalgrass.

Treatment
Imazapice0
Interactor
broadleaf signalgrassUrochloa platyphyllae0weed
Outcome
broadleaf signalgrass controle0
Direction
did not affecte0
Comparator
clethodime0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗
Urochloa platyphylla
Urochloa platyphylla · InteractorAndrés González · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Peanut (Arachis hypogaea)”

✓ located verbatim in the source · title, characters 24–49 · show in text ↑
e0

“Imazapic did not affect broadleaf signalgrass control by clethodim.”

✓ located verbatim in the source · abstract, characters 362–429 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The clethodim and imazapic mixture reduced fall panicum control.

Treatment
clethodim and imazapic were applied in mixturee0
Interactor
fall panicumPanicum dichotomiflorume0weed
Outcome
control of fall panicume0
Direction
Reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗
Panicum dichotomiflorum
Panicum dichotomiflorum · InteractorAyotte, Gilles, 1948- · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Peanut (Arachis hypogaea)”

✓ located verbatim in the source · title, characters 24–49 · show in text ↑
e0

“Reduced control of fall panicum, goosegrass, and large crabgrass was observed when clethodim and imazapic were applied in mixture.”

✓ located verbatim in the source · abstract, characters 430–560 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The clethodim and imazapic mixture reduced goosegrass control.

Treatment
clethodim and imazapic were applied in mixturee0
Interactor
goosegrasse0weed
Outcome
goosegrasse0
Direction
Reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“Peanut (Arachis hypogaea)”

✓ located verbatim in the source · title, characters 24–49 · show in text ↑
e0

“Reduced control of fall panicum, goosegrass, and large crabgrass was observed when clethodim and imazapic were applied in mixture.”

✓ located verbatim in the source · abstract, characters 430–560 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The clethodim and imazapic mixture reduced large crabgrass control.

Treatment
clethodim and imazapic were applied in mixturee0
Interactor
large crabgrasse0weed
Outcome
large crabgrasse0
Direction
Reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“Peanut (Arachis hypogaea)”

✓ located verbatim in the source · title, characters 24–49 · show in text ↑
e0

“Reduced control of fall panicum, goosegrass, and large crabgrass was observed when clethodim and imazapic were applied in mixture.”

✓ located verbatim in the source · abstract, characters 430–560 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Clethodim was antagonized when applied one day before to three days after imazapic for fall panicum.

Treatment
clethodim was applied 1 d before or up to 3 d after application of imazapice0
Interactor
fall panicumPanicum dichotomiflorume0weed
Outcome
Antagonism of clethodime0
Direction
Antagonisme0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗
Panicum dichotomiflorum
Panicum dichotomiflorum · InteractorAyotte, Gilles, 1948- · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Peanut (Arachis hypogaea)”

✓ located verbatim in the source · title, characters 24–49 · show in text ↑
e0

“Antagonism of clethodim occurred when clethodim was applied 1 d before or up to 3 d after application of imazapic (fall panicum and large crabgrass).”

✓ located verbatim in the source · abstract, characters 561–710 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Clethodim was antagonized when applied one day before to three days after imazapic for large crabgrass.

Treatment
clethodim was applied 1 d before or up to 3 d after application of imazapice0
Interactor
large crabgrasse0weed
Outcome
Antagonism of clethodime0
Direction
Antagonisme0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“Peanut (Arachis hypogaea)”

✓ located verbatim in the source · title, characters 24–49 · show in text ↑
e0

“Antagonism of clethodim occurred when clethodim was applied 1 d before or up to 3 d after application of imazapic (fall panicum and large crabgrass).”

✓ located verbatim in the source · abstract, characters 561–710 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Goosegrass control was antagonized when imazapic was applied three days before to seven days after clethodim.

Treatment
imazapic was applied 3 d before or up to 7 d after application of clethodime0
Interactor
goosegrasse0weed
Outcome
goosegrass controle0
Direction
Antagonisme0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“Peanut (Arachis hypogaea)”

✓ located verbatim in the source · title, characters 24–49 · show in text ↑
e0

“Antagonism of goosegrass control was noted when imazapic was applied 3 d before or up to 7 d after application of clethodim.”

✓ located verbatim in the source · abstract, characters 711–835 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Imazapic reduced clethodim control of Texas panicum irrespective of ammonium sulfate rate.

Treatment
imazapice0
Interactor
Texas panicume0weed
Outcome
Texas panicum controle0
Direction
reducede0
Comparator
clethodime0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“Peanut (Arachis hypogaea)”

✓ located verbatim in the source · title, characters 24–49 · show in text ↑
e0

“Texas panicum control by clethodim was reduced by imazapic regardless of the ammonium sulfate rate.”

✓ located verbatim in the source · abstract, characters 1095–1194 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Imazapic control of large crabgrass was unaffected in the later experiments.

Treatment
imazapice0
Interactor
large crabgrasse0weed
Outcome
large crabgrass controle0
Direction
not affectede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“Peanut (Arachis hypogaea)”

✓ located verbatim in the source · title, characters 24–49 · show in text ↑
e0

“large crabgrass control by imazapic was not affected in these experiments.”

✓ located verbatim in the source · abstract, characters 1204–1278 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Bentazon plus 2,4-DB substantially reduced clethodim control of both grasses.

Treatment
bentazon plus 2,4-DBe0
Outcome
Control of both grassese0
Direction
reducede0
Comparator
clethodime0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“Peanut (Arachis hypogaea)”

✓ located verbatim in the source · title, characters 24–49 · show in text ↑
e0

“Control of both grasses by clethodim was reduced substantially by bentazon plus 2,4-DB”

✓ located verbatim in the source · abstract, characters 1279–1365 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ammonium sulfate sometimes improved control in the bentazon plus 2,4-DB mixture.

Treatment
ammonium sulfatee0
Outcome
controle0
Direction
improvede0
Qualifier
in some instancese0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“Peanut (Arachis hypogaea)”

✓ located verbatim in the source · title, characters 24–49 · show in text ↑
e0

“although in some instances ammonium sulfate improved control when in mixture.”

✓ located verbatim in the source · abstract, characters 1367–1444 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ammonium sulfate sometimes improved clethodim control irrespective of broadleaf–sedge herbicide treatments.

Treatment
Ammonium sulfatee0
Outcome
control by clethodime0
Direction
improvede0
Qualifier
in some instancese0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

t0

“Peanut (Arachis hypogaea)”

✓ located verbatim in the source · title, characters 24–49 · show in text ↑
e0

“Ammonium sulfate improved control by clethodim in some instances irrespective of the broadleaf–sedge herbicide treatments.”

✓ located verbatim in the source · abstract, characters 1445–1567 · show in text ↑

imazapic · Panicum dichotomiflorum · Arachis hypogaea (peanut)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
    Imazapic improved grass weed control by 18% in 1999.

    Conservation Tillage and Herbicide Management for Two Peanut Cultivars · 2005 · compared with paraquat plus acifluorfen plus bentazon

    Opposite direction

See all 2 papers →

clethodim · weed · Arachis hypogaea (peanut)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

4 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

clethodim · control · Arachis hypogaea (peanut)Positive and negative results

8 papers: 7 positive, 1 negative or no effect

7 in the opposite direction

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

bentazone · control · Arachis hypogaea (peanut)Positive and negative results

24 papers: 14 positive, 10 negative or no effect

9 papers in the same direction as this paper · 14 in the opposite direction

  1. no effect
  2. no effect
  3. positive

20 papers more in this group

See all 24 papers →

imazapic · control · Arachis hypogaea (peanut)Positive and negative results

26 papers: 23 positive, 3 negative or no effect

2 papers in the same direction as this paper · 23 in the opposite direction

  1. positive
  2. positive
  3. positive

22 papers more in this group

See all 26 papers →

imazapic · Urochloa platyphylla · Arachis hypogaea (peanut)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. no effect
See all 2 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.