Abstract
Summary In 1982 – 88, potatoes were grown in 2‐, 4‐ and 6‐course rotations with spring barley on a field infested with Globodera rostochiensis. Severity of stem canker and black scurf increased with increasing frequency of previous potato crops, and seed tuber treatment with tolclofos‐methyl became less effective in controlling diseases. This suggested that previous crops had increased the amounts of soil‐borne inoculum of Rhizoctonia solani. Oxamyl soil treatment increased stem canker in one year and decreased black scurf in four years. Seed tuber treatment with imazalil or prochloraz decreased stem base infection by Polyscytalum pustulans and skin spot and silver scurf on tubers. Black dot was prevalent on tubers in all years and was not affected by seed tuber treatment or previous cropping. Oxamyl increased black dot and common scab in five years and decreased % tuber dry matter in six years. Cysts of G. rostochiensis were found attached to Désirée but not to Maris Piper tubers in August. At harvest tubers of both cultivars were affected by superficial pitting and its severity was related to soil populations of G. rostochiensis at planting. This damage was controlled by oxamyl. It is suggested that the pitting developed from holes made in the tuber skin at larval invasion. In 1989, Désirée seed tubers and healthy mini tubers were planted in all plots and severity of stem canker and black scurf increased with increasing proximity of previous potato crops and with the number of previous crops. Black dot on stems and tubers was not affected by previous cropping but was much less severe in a plot that had not grown potatoes during the seven years of the experiment. The severity of common scab generally decreased as the number of preceding potato crops increased.
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Claims 19
Claim · model-written summary
More frequent prior potato cropping increased stem canker severity.
- Taxon
- potato
Solanum tuberosumt0 - Outcome
- stem cankere0
- Direction
- increasede0
- Setting
- previous potato cropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Severity of stem canker and black scurf increased with increasing frequency of previous potato crops”
t0“potato”
Claim · model-written summary
More frequent prior potato cropping increased black scurf severity.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- black scurfe0
- Direction
- increasede0
- Setting
- previous potato cropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Severity of stem canker and black scurf increased with increasing frequency of previous potato crops”
t0“potato”
Claim · model-written summary
Tolclofos-methyl seed treatment became less effective in disease control with more frequent prior potato crops.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- seed tuber treatment with tolclofos‐methyle0
- Outcome
- controlling diseasese0
- Direction
- less effectivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed tuber treatment with tolclofos‐methyl became less effective in controlling diseases.”
t0“potato”
Claim · model-written summary
Oxamyl soil treatment increased stem canker in one year.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Oxamyl soil treatmente0
- Outcome
- stem cankere0
- Direction
- increasede0
- Qualifier
- one yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oxamyl soil treatment increased stem canker in one year”
t0“potato”
Claim · model-written summary
Oxamyl soil treatment decreased black scurf in four years.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Oxamyl soil treatmente0
- Outcome
- black scurfe0
- Direction
- decreasede0
- Qualifier
- four yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oxamyl soil treatment increased stem canker in one year and decreased black scurf in four years.”
t0“potato”
Claim · model-written summary
Imazalil seed tuber treatment decreased Polyscytalum pustulans stem base infection, skin spot, and silver scurf.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- imazalile0
- Interactor
- Polyscytalum pustulansPolyscytalum pustulanse0pathogen
- Outcome
- stem base infection by Polyscytalum pustulans and skin spot and silver scurfe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed tuber treatment with imazalil or prochloraz decreased stem base infection by Polyscytalum pustulans and skin spot and silver scurf on tubers.”
t0“potato”
Claim · model-written summary
Prochloraz seed tuber treatment decreased Polyscytalum pustulans stem base infection, skin spot, and silver scurf.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- prochloraze0
- Interactor
- Polyscytalum pustulansPolyscytalum pustulanse0pathogen
- Outcome
- stem base infection by Polyscytalum pustulans and skin spot and silver scurfe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed tuber treatment with imazalil or prochloraz decreased stem base infection by Polyscytalum pustulans and skin spot and silver scurf on tubers.”
t0“potato”
Claim · model-written summary
Black dot was prevalent in all years and unaffected by seed treatment or prior cropping.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- tuberse0
- Outcome
- Black dote0
- Direction
- not affectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Black dot was prevalent on tubers in all years and was not affected by seed tuber treatment or previous cropping.”
t0“potato”
Claim · model-written summary
Oxamyl increased black dot in five years.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Oxamyle0
- Outcome
- black dote0
- Direction
- increasede0
- Qualifier
- five yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oxamyl increased black dot and common scab in five years”
t0“potato”
Claim · model-written summary
Oxamyl increased common scab in five years.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Oxamyle0
- Outcome
- common scabe0
- Direction
- increasede0
- Qualifier
- five yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oxamyl increased black dot and common scab in five years”
t0“potato”
Claim · model-written summary
Oxamyl decreased tuber dry matter in six years.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Oxamyle0
- Outcome
- % tuber dry mattere0
- Direction
- decreasede0
- Qualifier
- six yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oxamyl increased black dot and common scab in five years and decreased % tuber dry matter in six years.”
t0“potato”
Claim · model-written summary
Globodera rostochiensis cysts attached to Désirée tubers in August.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Désiréee0
- Interactor
- G. rostochiensis
Globodera rostochiensise0pathogen - Outcome
- Cysts of G. rostochiensis were found attachede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cysts of G. rostochiensis were found attached to Désirée but not to Maris Piper tubers in August.”
t0“potato”
Claim · model-written summary
Globodera rostochiensis cysts were not found attached to Maris Piper tubers in August.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Maris Pipere0
- Interactor
- G. rostochiensisGlobodera rostochiensise0pathogen
- Outcome
- not to Maris Piper tuberse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cysts of G. rostochiensis were found attached to Désirée but not to Maris Piper tubers in August.”
t0“potato”
Claim · model-written summary
Tuber pitting severity in both cultivars was related to planting-time Globodera rostochiensis soil populations.
- Taxon
- potatoSolanum tuberosumt0
- Interactor
- G. rostochiensisGlobodera rostochiensise0pathogen
- Outcome
- superficial pittinge0
- Qualifier
- soil populations of G. rostochiensis at plantinge0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At harvest tubers of both cultivars were affected by superficial pitting and its severity was related to soil populations of G. rostochiensis at planting.”
t0“potato”
Claim · model-written summary
Oxamyl controlled the tuber pitting damage.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- oxamyle0
- Outcome
- damagee0
- Direction
- controllede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This damage was controlled by oxamyl.”
t0“potato”
Claim · model-written summary
The authors suggest pitting developed from larval invasion holes in tuber skin.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- pittinge0
- Qualifier
- holes made in the tuber skin at larval invasione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is suggested that the pitting developed from holes made in the tuber skin at larval invasion.”
t0“potato”
Claim · model-written summary
Stem canker and black scurf increased with proximity and number of prior potato crops in 1989.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- stem canker and black scurfe0
- Direction
- increasede0
- Setting
- previous potato cropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“severity of stem canker and black scurf increased with increasing proximity of previous potato crops and with the number of previous crops.”
t0“potato”
Claim · model-written summary
Black dot on stems and tubers was much less severe where potatoes had not been grown for seven years.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- Black dot on stems and tuberse0
- Direction
- much less severee0
- Setting
- a plot that had not grown potatoes during the seven years of the experimente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Black dot on stems and tubers was not affected by previous cropping but was much less severe in a plot that had not grown potatoes during the seven years of the experiment.”
t0“potato”
Claim · model-written summary
Common scab severity generally decreased as preceding potato crops increased.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- severity of common scabe0
- Direction
- decreasede0
- Setting
- preceding potato cropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The severity of common scab generally decreased as the number of preceding potato crops increased.”
t0“potato”
The same questions in other papers
oxamyl · disease · Solanum tuberosum (potato)Positive and negative results
1 in the opposite direction
- positive
oxamyl · growth · Solanum tuberosum (potato)Positive and negative results
3 in the opposite direction
- positive
- positive
- positive
oxamyl · pest · Solanum tuberosum (potato)Positive and negative results
7 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
5 papers more in this group
See all 9 papers →enilconazole · Polyscytalum pustulans · Solanum tuberosum (potato)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.