Abstract
Thirteen field trials were conducted in 1999 and 2000 to evaluate postemergence (POST) weed control with single applications of bromoxynil at 420 or 560 g ai/ha, glufosinate at 291 or 409 g ai/ha, glyphosate at 1,120 g ai/ha, pyrithiobac at 36 or 72 g ai/ha, or sulfosate at 1,120 g ai/ha. Additional treatments evaluated included two applications with glufosinate at both rates in all possible combinations, two applications of glyphosate, and two applications of sulfosate. Weeds were 2 to 5 cm or 8 to 10 cm tall for annual grass and broadleaf weeds whereas yellow nutsedge and glyphosate-resistant corn were 8 to 10 cm tall. All herbicide treatments controlled 2- to 5-cm common cocklebur, Florida beggarweed, jimsonweed, ladysthumb smartweed, Pennsylvania smartweed, pitted morningglory, prickly sida, redroot pigweed, smooth pigweed, and velvetleaf at least 90%. All herbicide treatments except pyrithiobac at either rate controlled 2- to 5-cm common lambsquarters, common ragweed, and tall morningglory at least 90%; pyrithiobac at the lower rate was the only treatment that failed to control entireleaf and ivyleaf morningglory at least 90%. Bromoxynil and pyrithiobac at either rate controlled 2- to 5-cm sicklepod 33 to 68% whereas glufosinate, glyphosate, and sulfostate controlled ≥99%. Glyphosate and sulfosate applied once or twice controlled hemp sesbania less than 70% and volunteer peanut less than 80%. Bromoxynil and pyrithiobac were the least effective treatments for control of annual grass species and bromoxynil controlled Palmer amaranth less than 80%. Glufosinate controlled broadleaf signalgrass, fall panicum, giant foxtail, green foxtail, large crabgrass, yellow foxtail, seedling johnsongrass, Texas panicum, and glyphosate-resistant corn at least 90% but controlled goosegrass less than 60%. Glyphosate and sulfosate controlled all grass species except glyphosate-resistant corn at least 90%. In greenhouse research, goosegrass could be controlled with glufosinate POST plus a late POST-directed treatment of prometryn plus monosodium salt of methylarsonic acid.
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Claims 13
Claim · model-written summary
All herbicides controlled ten small broadleaf weeds at least 90%.
- Taxon
- common cocklebure0
- Treatment
- All herbicide treatmentse0
- Outcome
- controlled 2- to 5-cm common cocklebur, Florida beggarweed, jimsonweed, ladysthumb smartweed, Pennsylvania smartweed, pitted morningglory, prickly sida, redroot pigweed, smooth pigweed, and velvetleafe0
- Direction
- controllede0
- Value
- at least 90%e0
Not reportedComparator
Verbatim
e0“All herbicide treatments controlled 2- to 5-cm common cocklebur, Florida beggarweed, jimsonweed, ladysthumb smartweed, Pennsylvania smartweed, pitted morningglory, prickly sida, redroot pigweed, smooth pigweed, and velvetleaf at least 90%.”
Claim · model-written summary
Except pyrithiobac, herbicides controlled three additional weeds at least 90%.
- Taxon
- common lambsquarters
Chenopodium albume0 - Treatment
- All herbicide treatments except pyrithiobac at either ratee0
- Outcome
- controlled 2- to 5-cm common lambsquarters, common ragweed, and tall morningglorye0
- Direction
- controllede0
- Value
- at least 90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All herbicide treatments except pyrithiobac at either rate controlled 2- to 5-cm common lambsquarters, common ragweed, and tall morningglory at least 90%”
Claim · model-written summary
Lower-rate pyrithiobac failed to control entireleaf and ivyleaf morningglory at least 90%.
- Taxon
- entireleaf and ivyleaf morningglorye0
- Treatment
- pyrithiobac at the lower ratee0
- Outcome
- control entireleaf and ivyleaf morningglorye0
- Direction
- failede0
- Value
- at least 90%e0
Not reportedComparator
Verbatim
e0“pyrithiobac at the lower rate was the only treatment that failed to control entireleaf and ivyleaf morningglory at least 90%.”
Claim · model-written summary
Bromoxynil and pyrithiobac controlled sicklepod by 33 to 68%.
- Taxon
- sicklepode0
- Treatment
- Bromoxynil and pyrithiobac at either ratee0
- Outcome
- controlled 2- to 5-cm sicklepode0
- Direction
- controllede0
- Value
- 33 to 68%e0
Not reportedComparator
Verbatim
e0“Bromoxynil and pyrithiobac at either rate controlled 2- to 5-cm sicklepod 33 to 68%”
Claim · model-written summary
Glufosinate, glyphosate and sulfosate controlled sicklepod at least 99%.
- Taxon
- Weedt0
- Treatment
- glufosinate, glyphosate, and sulfostatee0
- Outcome
- controllede0
- Direction
- controllede0
- Value
- ≥99%e0
Not reportedComparator
Verbatim
e0“glufosinate, glyphosate, and sulfostate controlled ≥99%.”
t0“Weed Efficacy Evaluations”
Claim · model-written summary
Glyphosate and sulfosate controlled hemp sesbania below 70%.
- Taxon
- hemp sesbaniae0
- Treatment
- Glyphosate and sulfosate applied once or twicee0
- Outcome
- controlled hemp sesbaniae0
- Direction
- controllede0
- Value
- less than 70%e0
Not reportedComparator
Verbatim
e0“Glyphosate and sulfosate applied once or twice controlled hemp sesbania less than 70% and volunteer peanut less than 80%.”
Claim · model-written summary
Glyphosate and sulfosate controlled volunteer peanut below 80%.
- Taxon
- volunteer peanute0
- Treatment
- Glyphosate and sulfosate applied once or twicee0
- Outcome
- volunteer peanute0
- Direction
- controllede0
- Value
- less than 80%e0
Not reportedComparator
Verbatim
e0“Glyphosate and sulfosate applied once or twice controlled hemp sesbania less than 70% and volunteer peanut less than 80%.”
Claim · model-written summary
Bromoxynil and pyrithiobac were least effective for annual grasses.
- Taxon
- annual grass speciese0
- Treatment
- Bromoxynil and pyrithiobace0
- Outcome
- control of annual grass speciese0
- Direction
- least effectivee0
Not reportedComparator
Verbatim
e0“Bromoxynil and pyrithiobac were the least effective treatments for control of annual grass species”
Claim · model-written summary
Bromoxynil controlled Palmer amaranth below 80%.
- Taxon
- Palmer amaranthe0
- Treatment
- bromoxynile0
- Outcome
- controlled Palmer amaranthe0
- Direction
- controllede0
- Value
- less than 80%e0
Not reportedComparator
Verbatim
e0“bromoxynil controlled Palmer amaranth less than 80%.”
Claim · model-written summary
Glufosinate controlled listed grasses and resistant corn at least 90%.
- Taxon
- broadleaf signalgrass
Urochloa platyphyllae0 - Treatment
- Glufosinatee0
- Outcome
- controlled broadleaf signalgrass, fall panicum, giant foxtail, green foxtail, large crabgrass, yellow foxtail, seedling johnsongrass, Texas panicum, and glyphosate-resistant corne0
- Direction
- controllede0
- Value
- at least 90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glufosinate controlled broadleaf signalgrass, fall panicum, giant foxtail, green foxtail, large crabgrass, yellow foxtail, seedling johnsongrass, Texas panicum, and glyphosate-resistant corn at least 90%”
Claim · model-written summary
Glufosinate controlled goosegrass below 60%.
- Taxon
- goosegrasse0
- Treatment
- Glufosinatet0
- Outcome
- controlled goosegrasse0
- Direction
- controllede0
- Value
- less than 60%e0
Not reportedComparator
Verbatim
e0“controlled goosegrass less than 60%.”
t0“Glufosinate”
Claim · model-written summary
Glyphosate and sulfosate controlled grasses except resistant corn at least 90%.
- Taxon
- grass speciese0
- Treatment
- Glyphosate and sulfosatee0
- Outcome
- controlled all grass species except glyphosate-resistant corne0
- Direction
- controllede0
- Value
- at least 90%e0
Not reportedComparator
Verbatim
e0“Glyphosate and sulfosate controlled all grass species except glyphosate-resistant corn at least 90%.”
Claim · model-written summary
A combined POST treatment controlled goosegrass in greenhouse research.
- Taxon
- goosegrasse0
- Treatment
- glufosinate POST plus a late POST-directed treatment of prometryn plus monosodium salt of methylarsonic acide0
- Outcome
- goosegrass could be controllede0
- Direction
- controllede0
- Setting
- greenhousee0
Not reportedComparator
Verbatim
e0“In greenhouse research, goosegrass could be controlled with glufosinate POST plus a late POST-directed treatment of prometryn plus monosodium salt of methylarsonic acid.”
The same questions in other papers
glufosinate · control · Urochloa platyphylla (broadleaf signalgrass)Positive and negative results
1 in the opposite direction
- negative
herbicide · control · Chenopodium album (common lambsquarters)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- positive
1 paper more in this group
See all 5 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.