Paper · 1989 · Weed Science

Control of Selected Perennial Weeds with Glyphosate

Mark H. Yonce; Walter A. Skroch

6
claims
6
verbatim quotes
27
citations
2
research areas
—
Not open access

Abstract

The efficacy of glyphosate as affected by rate, time of application, and addition of surfactant 3 was evaluated on blackberry, Japanese honeysuckle, poison ivy, sericea lespedeza, and trumpetcreeper. The addition of surfactant (0.5% v/v) to glyphosate had no effect on the control of the weeds studied. Glyphosate applied in mid-June to September at 1.1 or 2.2 kg/ha controlled blackberry. Mid-August glyphosate applications of 2.2 kg/ha controlled 83% of actively growing Japanese honeysuckle; there was less than 75% at one site due to moisture stress. Use of 2.2 kg/ha of glyphosate from mid-June through mid-August controlled 87% of poison ivy. Consistent commercially acceptable control of sericea lespedeza was obtained when glyphosate was applied at 1.1 or 2.2 kg/ha at the time of flowering. Applying glyphosate at 1.1 or 2.2 kg/ha from late July through early October controlled 50% or more of the trumpetcreeper.

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Claims 6

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Adding surfactant to glyphosate had no effect on control of the studied weeds.

Taxon
weedse0
Treatment
surfactant (0.5% v/v) to glyphosatee0
Outcome
control of the weedse0
Direction
no effecte0

Not reportedComparator

Verbatim

e0

“The addition of surfactant (0.5% v/v) to glyphosate had no effect on the control of the weeds studied.”

✓ located verbatim in the source · abstract, characters 200–302 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Glyphosate at 1.1 or 2.2 kg/ha in mid-June to September controlled blackberry.

Taxon
blackberryRubuse0
Treatment
Glyphosate applied in mid-June to September at 1.1 or 2.2 kg/hae0
Outcome
controlled blackberrye0

Not reportedComparatorDirection

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

Rubus
Rubus · Taxon · picture of the genus (one of its species)George Chernilevsky · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Glyphosate applied in mid-June to September at 1.1 or 2.2 kg/ha controlled blackberry.”

✓ located verbatim in the source · abstract, characters 303–389 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mid-August glyphosate at 2.2 kg/ha controlled 83% of actively growing Japanese honeysuckle.

Taxon
Japanese honeysuckleLonicera japonicae0
Treatment
Mid-August glyphosate applications of 2.2 kg/hae0
Outcome
controllede0
Direction
controllede0
Value
83%e0
Qualifier
actively growinge0

Not reportedComparator

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

Lonicera japonica
Lonicera japonica · TaxonVictor M. Vicente Selvas · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Mid-August glyphosate applications of 2.2 kg/ha controlled 83% of actively growing Japanese honeysuckle”

✓ located verbatim in the source · abstract, characters 390–493 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Glyphosate at 2.2 kg/ha from mid-June through mid-August controlled 87% of poison ivy.

Taxon
poison ivye0
Treatment
2.2 kg/ha of glyphosate from mid-June through mid-Auguste0
Outcome
controllede0
Direction
controllede0
Value
87%e0

Not reportedComparator

Verbatim

e0

“Use of 2.2 kg/ha of glyphosate from mid-June through mid-August controlled 87% of poison ivy.”

✓ located verbatim in the source · abstract, characters 555–648 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Glyphosate at 1.1 or 2.2 kg/ha at flowering achieved consistent commercially acceptable sericea lespedeza control.

Taxon
sericea lespedezaLespedeza cuneatae0
Organ / stage
floweringe0
Treatment
glyphosate was applied at 1.1 or 2.2 kg/ha at the time of floweringe0
Outcome
Consistent commercially acceptable controle0

Not reportedComparatorDirection

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

Lespedeza cuneata
Lespedeza cuneata · TaxonDalgial · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Consistent commercially acceptable control of sericea lespedeza was obtained when glyphosate was applied at 1.1 or 2.2 kg/ha at the time of flowering.”

✓ located verbatim in the source · abstract, characters 649–799 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Glyphosate at 1.1 or 2.2 kg/ha from late July through early October controlled at least 50% of trumpetcreeper.

Taxon
trumpetcreeperCampsis radicanse0
Treatment
glyphosate at 1.1 or 2.2 kg/ha from late July through early Octobere0
Outcome
controllede0
Direction
controllede0
Value
50% or moree0

Not reportedComparator

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

Campsis radicans
Campsis radicans · TaxonMiwasatoshi · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Applying glyphosate at 1.1 or 2.2 kg/ha from late July through early October controlled 50% or more of the trumpetcreeper.”

✓ located verbatim in the source · abstract, characters 800–922 · show in text ↑

glyphosate · control · Campsis radicans (trumpet creeper)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

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

  1. no effect
  2. positive
See all 3 papers →

glyphosate · control · Rubus (bramble)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

glyphosate · control · Lonicera japonica (Japanese honeysuckle)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

glyphosate · control · Lespedeza cuneata (sericea lespedeza)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
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.