Abstract
In our study targeting shoot blight on young 'Bartlett' pear trees caused by Erwinia amylovora and the prevention of fire blight canker formation, we assessed advanced preventive spray treatments.Our investigation focused on foliar spray applications, testing various rates of Reynoutria sachalinensis (giant knotweed) extract (RSE) alone and combined with Apogee, a plant growth regulator.Additionally, we examined Apogee alone, Apogee with Cueva (copper octanoate), and traditional antibiotics such as streptomycin and oxytetracycline.Applying 153.6 fl oz/A and three 32 fl oz/A of RSE on 6-year-old 'Bartlett' trees yielded significant results, achieving 78.3% to 100% control of shoot blight severity (SBS) and 76.8% to 100% control of canker incidence (CI).While other RSE rates, including the RSE-Apogee combination, demonstrated lower effectiveness, Apogee alone showed modest control.However, combining Apogee with Cueva exhibited promising results, achieving 89.4% control of SBS and 88.6% control of CI.Despite antibiotics showing 100% control, their suitability for summer application is limited due to concerns regarding antibiotic resistance.Overall, our findings suggest that applying RSE at specific rates and the Apogee-Cueva combination consistently offer effective control of shoot blight and cankers in pear trees.
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Claims 8
Claim · model-written summary
shoot blight severity (SBS) was controlled by RSE at the specified rates on Bartlett pear trees.
- Taxon
- pear
Pyrus communise7 - Material
- 'Bartlett'e7
- Treatment
- 153.6 fl oz/A and three 32 fl oz/A of RSEe0
- Interactor
- Erwinia amylovora
Erwinia amylovorae7pathogen - Outcome
- shoot blight severity (SBS)e0
- Direction
- controle0
- Value
- 78.3% to 100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)

Verbatim
e0“Applying 153.6 fl oz/A and three 32 fl oz/A of RSE on 6-year-old 'Bartlett' trees yielded significant results, achieving 78.3% to 100% control of shoot blight severity (SBS) and 76.8% to 100% control of canker incidence (CI).”
e7“shoot blight on young 'Bartlett' pear trees caused by Erwinia amylovora”
Claim · model-written summary
canker incidence (CI) was controlled by RSE at the specified rates on Bartlett pear trees.
- Taxon
- pear
Pyrus communise7 - Material
- 'Bartlett'e7
- Treatment
- 153.6 fl oz/A and three 32 fl oz/A of RSEe0
- Interactor
- Erwinia amylovora
Erwinia amylovorae7pathogen - Outcome
- canker incidence (CI)e0
- Direction
- controle0
- Value
- 76.8% to 100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)

Verbatim
e0“Applying 153.6 fl oz/A and three 32 fl oz/A of RSE on 6-year-old 'Bartlett' trees yielded significant results, achieving 78.3% to 100% control of shoot blight severity (SBS) and 76.8% to 100% control of canker incidence (CI).”
e7“shoot blight on young 'Bartlett' pear trees caused by Erwinia amylovora”
Claim · model-written summary
Other RSE rates and RSE with Apogee were less effective.
- Taxon
- pear
Pyrus communise7 - Treatment
- other RSE rates, including the RSE-Apogee combinatione0
- Interactor
- Erwinia amylovora
Erwinia amylovorae7pathogen - Outcome
- effectivenesse0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)

Verbatim
e0“other RSE rates, including the RSE-Apogee combination, demonstrated lower effectiveness, Apogee alone showed modest control.”
e7“shoot blight on young 'Bartlett' pear trees caused by Erwinia amylovora”
Claim · model-written summary
Apogee alone gave modest control.
- Taxon
- pear
Pyrus communise7 - Treatment
- Apogee alonee0
- Interactor
- Erwinia amylovora
Erwinia amylovorae7pathogen - Outcome
- controle0
- Direction
- modeste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)

Verbatim
e0“other RSE rates, including the RSE-Apogee combination, demonstrated lower effectiveness, Apogee alone showed modest control.”
e7“shoot blight on young 'Bartlett' pear trees caused by Erwinia amylovora”
Claim · model-written summary
Apogee with Cueva controlled SBS by 89.4%.
- Taxon
- pear
Pyrus communise7 - Treatment
- combining Apogee with Cuevae0
- Interactor
- Erwinia amylovora
Erwinia amylovorae7pathogen - Outcome
- SBSe0
- Direction
- controle0
- Value
- 89.4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)

Verbatim
e0“combining Apogee with Cueva exhibited promising results, achieving 89.4% control of SBS and 88.6% control of CI.”
e7“shoot blight on young 'Bartlett' pear trees caused by Erwinia amylovora”
Claim · model-written summary
Apogee with Cueva controlled CI by 88.6%.
- Taxon
- pear
Pyrus communise7 - Treatment
- combining Apogee with Cuevae0
- Interactor
- Erwinia amylovora
Erwinia amylovorae7pathogen - Outcome
- CIe0
- Direction
- controle0
- Value
- 88.6%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)

Verbatim
e0“combining Apogee with Cueva exhibited promising results, achieving 89.4% control of SBS and 88.6% control of CI.”
e7“shoot blight on young 'Bartlett' pear trees caused by Erwinia amylovora”
Claim · model-written summary
Antibiotics gave complete control, though their summer use was judged limited by resistance concerns.
- Taxon
- pear
Pyrus communise7 - Treatment
- antibioticse0
- Interactor
- Erwinia amylovora
Erwinia amylovorae7pathogen - Outcome
- controle0
- Direction
- controle0
- Value
- 100%e0
- Qualifier
- suitability for summer application is limited due to concerns regarding antibiotic resistancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)

Verbatim
e0“antibiotics showing 100% control, their suitability for summer application is limited due to concerns regarding antibiotic resistance.”
e7“shoot blight on young 'Bartlett' pear trees caused by Erwinia amylovora”
Claim · model-written summary
The authors recommend specific RSE rates and Apogee with Cueva for pear shoot blight and canker control.
- Taxon
- pear
Pyrus communise0 - Outcome
- applying RSE at specific rates and the Apogee-Cueva combination consistently offer effective control of shoot blight and cankers in pear treese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)
Verbatim
e0“applying RSE at specific rates and the Apogee-Cueva combination consistently offer effective control of shoot blight and cankers in pear trees.”
The same questions in other papers
antimicrobial agent · Erwinia amylovora · Pyrus communis (pear)Results agree
3 papers in the same direction as this paper
- positive
- positive
- 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.