Intervention effectmodel-written summary

Weed control and root yield of sugarbeet were optimal with two postemergence applications of glyphosate.

A claim from Influence of Glyphosate and Glufosinate on Weed Control and Sugarbeet (Beta vulgaris) Yield in Herbicide-Tolerant Sugarbeet1 · 2002

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Weed control and root yield of sugarbeet were optimal with two postemergence applications of glyphosate.

Treatment
two postemergence applications of glyphosatee2
Outcome
Weed control and sugarbeet root yielde2
Direction
optimale2
Setting
Field trialse0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValueQualifier

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

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Field trials were conducted in 1999 and 2000 to determine the influence of weed size and the number of glyphosate or glufosinate applications on weed control and sugarbeet yield”

✓ located verbatim in the source · abstract, characters 0–177
e2

“Weed control and sugarbeet root yield were optimal for two postemergence applications of glyphosate and for three applications of glufosinate”

✓ located verbatim in the source · abstract, characters 602–743

Title

Influence of Glyphosate and Glufosinate on Weed Control and Sugarbeet (Beta vulgaris) Yield in Herbicide-Tolerant Sugarbeet1

ROBERT G. WILSON; C. DEAN YONTS; JOHN A. SMITH Weed Technology 2002. doi:10.1614/0890-037x(2002)016[0066:iogago]2.0.co;2

Other claims from this paper (8)

Record rev-2ad0bc413247dfcf55bef27fb0d048198faa8c3278f3ed81ecf6e9396830ca0b · schema claims-v0.9 · position 3 in the model’s answer

glyphosate · weed · Beta vulgaris (beet)Positive and negative results

10 papers: 9 positive, 1 negative or no effect

8 papers in the same direction as this claim · 1 reporting no difference from an alternative

  1. positive
    In a field trial on glyphosate-tolerant sugarbeet, 720 g a.i. ha-1 of glyphosate in one to three applications gave similar or superior weed control compared with 3.17 kg a.i. ha-1 of a metamitron, phenmedipham and ethofumesate mixture in three applications.

    Weed control in glyphosate‐tolerant sugarbeet (Beta vulgaris L.) · 1995 · compared with 3.17 kg a.i. ha −1 mixture of metamitron, phenmedipham and ethofumesate applied in three repeated applications

    Same directionCited by this paper

  2. positive
    Glyphosate or glufosinate POST gave better weed control than conventional POST herbicides

    Weed Management in Glyphosate- and Glufosinate-Resistant Sugar Beet · 2009 · compared with conventional POST herbicides

    Same directionCites this paper

  3. positive
    Glyphosate gave lower weed density and biomass than conventional herbicides.

    Weed Management in Wide- and Narrow-Row Glyphosate-Resistant Sugarbeet · 2010 · compared with conventional herbicide treatments

    Same directionCites this paper

  4. positive
    Glyphosate produced significantly higher weed control efficacy than conventional herbicides in four of seven experiments.

    Evaluation of two chemical weed control systems in sugar beet in Germany and the Russian Federation · 2015 · compared with the conventional herbicides

    Same directionCites this paper

  5. no effect
    One application of dimethenamid-p plus glyphosate gave similar weed control as two applications of glyphosate in sugar beet.

    Winter cereal cover crop termination timing to optimize trade‐off between weed suppression and impact on sugar beet yield · 2025 · compared with glyphosate applied twice

    No difference from an alternative

  6. positive
    Two overall glyphosate sprays produced low weed biomass.

    Management of genetically modified herbicide–tolerant sugar beet for spring and autumn environmental benefit · 2005

    Same direction

  7. positive
    In sugar beet systems, glyphosate was associated with older weeds together with the newly emerging ones.

    Comparison of Sugar Beet Cropping Systems with Dead and Living Mulch using a Glyphosate‐resistant Hybrid · 2005

    Same direction

  8. positive
    Ethofumesate, two glyphosate applications and s -metolachlor provided 89% more mid-July weed control than glyphosate alone.

    Late-Season Weed Control in Glyphosate-Resistant Sugarbeet · 2011 · compared with glyphosate alone

    Same direction

1 paper more in this group

See all 10 papers →

herbicide · weed · Beta vulgaris (beet)Positive and negative results

63 papers: 50 positive, 13 negative or no effect

49 papers in the same direction as this claim · 12 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
    Herbicides applied at four to six leaves controlled weeds less effectively than when sugarbeets had two to four leaves.

    Control of Weeds in Sugarbeets (Beta vulgaris) with Handhoeing and Herbicides · 1983 · compared with when sugarbeets had two to four leaves

    Opposite directionCited by this paper

  2. no effect
    Weed diversity was little affected by treatment in all three crops except immediately after herbicide use.

    Weeds in fields with contrasting conventional and genetically modified herbicide–tolerant crops. I. Effects on abundance and diversity · 2003

    Opposite direction

  3. negative
    GMHT beet significantly reduced seed rain important to 16 bird species.

    Weed seed resources for birds in fields with contrasting conventional and genetically modified herbicide-tolerant crops · 2006 · compared with conventional halves

    Opposite direction

  4. negative
    Reduced tillage intensity and refusal of full-scale herbicides had a negative but not significant influence on weed infestation, except under no-tillage.

    The effect of conservation primary and zero tillage on soil bulk density, water content, sugar beet growth and weed infestation. · 2009

    Opposite direction

  5. negative
    A subsurface herbicide layer caused extreme activity and killed sugarbeets and weeds.

    Response of Sugarbeets and Weeds to Cycloate, Propachlor, and Pyrazon · 1971

    Opposite direction

  6. negative
    The treatment "low-dose post-emergence band herbicide application twice + tractor hoeing twice" gave 89.9% weed control, below the hand-hoeing control (98.6%).

    POSSIBILITIES OF REDUCING HERBICIDE USE IN WEED CONTROL IN SUGAR BEET PRODUCTION · 2012 · compared with hand hoeing twice + thinning (control)

    Opposite direction

  7. no effect
    Mixing the herbicide with the insecticide did not reduce the ability of the herbicide to control weeds effectively.

    Effects of Combinations of Liquid and Granular Formulations of Disulfoton and Cycloate on Sugarbeets1 · 1973

    Opposite direction

  8. negative
    CONVISO only partly controlled ALS-resistant weeds.

    Examination of efficacy and selectivity of herbicides in ALS-tolerant sugar beets · 2018

    Opposite direction

54 papers more in this group

See all 63 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.