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
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.”
Claim · model-written summary
Glyphosate at 1.1 or 2.2 kg/ha in mid-June to September controlled blackberry.
- 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.

Verbatim
e0“Glyphosate applied in mid-June to September at 1.1 or 2.2 kg/ha controlled blackberry.”
Claim · model-written summary
Mid-August glyphosate at 2.2 kg/ha controlled 83% of actively growing Japanese honeysuckle.
- Taxon
- Japanese honeysuckle
Lonicera 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.
Verbatim
e0“Mid-August glyphosate applications of 2.2 kg/ha controlled 83% of actively growing Japanese honeysuckle”
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.”
Claim · model-written summary
Glyphosate at 1.1 or 2.2 kg/ha at flowering achieved consistent commercially acceptable sericea lespedeza control.
- Taxon
- sericea lespedeza
Lespedeza 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.
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.”
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
- trumpetcreeper
Campsis 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.
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.”
The same questions in other papers
glyphosate · control · Campsis radicans (trumpet creeper)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
glyphosate · control · Rubus (bramble)Results agree
1 paper in the same direction as this paper
- positive
glyphosate · control · Lonicera japonica (Japanese honeysuckle)Results agree
1 paper in the same direction as this paper
- positive
glyphosate · control · Lespedeza cuneata (sericea lespedeza)Results agree
1 paper in the same direction as this paper
- positive
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.