Pratylenchus penetrans 17 claims

species · family Pratylenchidae · animal · NCBI Taxonomy ↗

NCBI synonyms: Tylenchus penetrans

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Pratylenchus penetransUSDA ARS · Public domain · Wikimedia Commons ↗

17 claims

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Observationobservedoriginal resultmeasured

Claim · model-written summary

Pratylenchus penetrans was spatially clumped in raspberry fields.

Taxon: Pratylenchus penetransPratylenchus penetranst0
Outcome: spatially clumped in the fieldse0

Verbatim

e0
“In general, disease severity and the pathogens were spatially clumped in the fields.”
✓ located verbatim in the source · abstract, characters 944–1028

t0
“Pratylenchus penetrans”
✓ located verbatim in the source · title, characters 62–84

Title

Multivariate Geostatistical Modeling of Phytophthora rubi and Pratylenchus penetrans in Red Raspberry Fields

J. B. Contina; D. R. Kroese; T. W. Walters; et al. Journal of Nematology 2025. doi:10.2478/jofnem-2025-0038

Other claims from this paper (8)

Observation Raspberry disease severity was spatially clumped in the surveyed fields.
Observation Phytophthora rubi was spatially clumped in raspberry fields.
Association Soil texture did not consistently influence P. rubi field distribution.
Association Field elevation did not consistently influence P. rubi distribution.
Association Soil texture did not consistently influence P. penetrans distribution.
Association Field elevation did not consistently influence P. penetrans distribution.
Association P. rubi root infestation was the main driver of raspberry disease severity.
Association No significant root interaction between P. rubi and P. penetrans was detected.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nematicide-treated plots had consistently lower P. penetrans root densities.

Taxon: P. penetransPratylenchus penetranse0
Treatment: nematicide-treated plotse0
Interactor: Red RaspberryRubus idaeust0host
Outcome: P. penetrans root population densitiese0
Direction: lowere0
Comparator: nontreated plotse0

Verbatim

e0
“P. penetrans root population densities in nematicide-treated plots were consistently lower than those in nontreated plots at all the samplings”
✓ located verbatim in the source · abstract, characters 914–1056

t0
“Red Raspberry”
✓ located verbatim in the source · title, characters 48–61

Title

Impact of Pratylenchus penetrans on Established Red Raspberry Productivity

Ziduan Han; Thomas W. Walters; Inga A. Zasada Plant Disease 2014. doi:10.1094/pdis-12-13-1235-re

Other claims from this paper (5)

Intervention effect Fine root biomass showed few consistent differences between treated and untreated raspberry plots.
Intervention effect Complete root sampling in one cultivar showed greater fine root biomass with nematicide treatment.
Intervention effect Where yields differed, nematicide-treated raspberry plants yielded less than untreated plants.
Mechanism Authors infer nematicides may be phytotoxic to some raspberry cultivars.
Recommendation Authors conclude post-plant nematicides have limited benefit for these cultivars over three years.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Potatoes after rye and red clover had the highest nematode populations.

Taxon: Pratylenchus penetransPratylenchus penetranst0
Treatment: rye plus red clovere0
Outcome: nematodese0
Direction: higheste0

Not reportedComparator

Verbatim

e0
“Populations of nematodes surpassed the threshold of 1000 kg -1 soil in all treatments and were highest in potatoes following rye plus red clover”
✓ located verbatim in the source · abstract, characters 1413–1557

t0
“Pratylenchus penetrans”
✓ located verbatim in the source · title, characters 87–109

Title

Yield of ‘Superior’ potatoes (Solanum tuberosum) and dynamics of root-lesion nematode (Pratylenchus penetrans) populations following “nematode suppressive” cover crops and fumigation

A.W. McKeown; J.W.. Potter Phytoprotection 2005. doi:10.7202/706211ar

Other claims from this paper (13)

Intervention effect Potato emergence showed little difference among treatments.
Intervention effect Telone IIB fumigation produced the highest total and marketable potato yields.
Intervention effect Vorlex Plus CP fumigation ranked below Telone IIB for potato yield and above control.
Intervention effect 'Domo' mustard ranked above control for potato yield.
Observation Nematode populations exceeded 1000 per kg soil in all treatments.
Intervention effect Sorghum-sudangrass hybrids gave intermediate potato yield and nematode control.
Intervention effect Mustards gave intermediate potato yield and nematode control.
Observation All tested cover crops appeared to host root-lesion nematodes in the field.
Intervention effect Fumigation caused excellent nematode mortality.
Intervention effect Winter mortality after 'Sordan 79' incorporation was next best for nematode control.
Recommendation Summer-grown 'Sordan 79' followed by incorporation was an alternative to fumigation before potatoes.
Intervention effect Deep chiselling appeared to reduce nematode populations.
Recommendation Deep fumigation before potatoes may be useful when nematode populations warrant it.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fumigation caused excellent nematode mortality.

Taxon: Pratylenchus penetransPratylenchus penetranst0
Treatment: fumigatione0
Outcome: Nematode mortalitye0
Direction: excellente0

Not reportedComparator

Verbatim

e0
“Nematode mortality was excellent with fumigation”
✓ located verbatim in the source · abstract, characters 1878–1926

t0
“Pratylenchus penetrans”
✓ located verbatim in the source · title, characters 87–109

Title

Yield of ‘Superior’ potatoes (Solanum tuberosum) and dynamics of root-lesion nematode (Pratylenchus penetrans) populations following “nematode suppressive” cover crops and fumigation

A.W. McKeown; J.W.. Potter Phytoprotection 2005. doi:10.7202/706211ar

Other claims from this paper (13)

Intervention effect Potato emergence showed little difference among treatments.
Intervention effect Telone IIB fumigation produced the highest total and marketable potato yields.
Intervention effect Vorlex Plus CP fumigation ranked below Telone IIB for potato yield and above control.
Intervention effect 'Domo' mustard ranked above control for potato yield.
Observation Nematode populations exceeded 1000 per kg soil in all treatments.
Intervention effect Potatoes after rye and red clover had the highest nematode populations.
Intervention effect Sorghum-sudangrass hybrids gave intermediate potato yield and nematode control.
Intervention effect Mustards gave intermediate potato yield and nematode control.
Observation All tested cover crops appeared to host root-lesion nematodes in the field.
Intervention effect Winter mortality after 'Sordan 79' incorporation was next best for nematode control.
Recommendation Summer-grown 'Sordan 79' followed by incorporation was an alternative to fumigation before potatoes.
Intervention effect Deep chiselling appeared to reduce nematode populations.
Recommendation Deep fumigation before potatoes may be useful when nematode populations warrant it.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Winter mortality after 'Sordan 79' incorporation was next best for nematode control.

Taxon: Pratylenchus penetransPratylenchus penetranst0
Treatment: 'Sordan 79' incorporatione0
Outcome: kill over the wintere0
Direction: next beste0

Not reportedComparator

Verbatim

e0
“next best from kill over the winter after 'Sordan 79' incorporation”
✓ located verbatim in the source · abstract, characters 1931–1998

t0
“Pratylenchus penetrans”
✓ located verbatim in the source · title, characters 87–109

Title

Yield of ‘Superior’ potatoes (Solanum tuberosum) and dynamics of root-lesion nematode (Pratylenchus penetrans) populations following “nematode suppressive” cover crops and fumigation

A.W. McKeown; J.W.. Potter Phytoprotection 2005. doi:10.7202/706211ar

Other claims from this paper (13)

Intervention effect Potato emergence showed little difference among treatments.
Intervention effect Telone IIB fumigation produced the highest total and marketable potato yields.
Intervention effect Vorlex Plus CP fumigation ranked below Telone IIB for potato yield and above control.
Intervention effect 'Domo' mustard ranked above control for potato yield.
Observation Nematode populations exceeded 1000 per kg soil in all treatments.
Intervention effect Potatoes after rye and red clover had the highest nematode populations.
Intervention effect Sorghum-sudangrass hybrids gave intermediate potato yield and nematode control.
Intervention effect Mustards gave intermediate potato yield and nematode control.
Observation All tested cover crops appeared to host root-lesion nematodes in the field.
Intervention effect Fumigation caused excellent nematode mortality.
Recommendation Summer-grown 'Sordan 79' followed by incorporation was an alternative to fumigation before potatoes.
Intervention effect Deep chiselling appeared to reduce nematode populations.
Recommendation Deep fumigation before potatoes may be useful when nematode populations warrant it.

Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Deep chiselling appeared to reduce nematode populations.

Taxon: Pratylenchus penetransPratylenchus penetranst0
Treatment: Deep chisellinge0
Outcome: nematode populatione0
Direction: reducee0

Not reportedComparator

Verbatim

e0
“Deep chiselling appears to reduce nematode population, possibly by physical action”
✓ located verbatim in the source · abstract, characters 2129–2211

t0
“Pratylenchus penetrans”
✓ located verbatim in the source · title, characters 87–109

Title

Yield of ‘Superior’ potatoes (Solanum tuberosum) and dynamics of root-lesion nematode (Pratylenchus penetrans) populations following “nematode suppressive” cover crops and fumigation

A.W. McKeown; J.W.. Potter Phytoprotection 2005. doi:10.7202/706211ar

Other claims from this paper (13)

Intervention effect Potato emergence showed little difference among treatments.
Intervention effect Telone IIB fumigation produced the highest total and marketable potato yields.
Intervention effect Vorlex Plus CP fumigation ranked below Telone IIB for potato yield and above control.
Intervention effect 'Domo' mustard ranked above control for potato yield.
Observation Nematode populations exceeded 1000 per kg soil in all treatments.
Intervention effect Potatoes after rye and red clover had the highest nematode populations.
Intervention effect Sorghum-sudangrass hybrids gave intermediate potato yield and nematode control.
Intervention effect Mustards gave intermediate potato yield and nematode control.
Observation All tested cover crops appeared to host root-lesion nematodes in the field.
Intervention effect Fumigation caused excellent nematode mortality.
Intervention effect Winter mortality after 'Sordan 79' incorporation was next best for nematode control.
Recommendation Summer-grown 'Sordan 79' followed by incorporation was an alternative to fumigation before potatoes.
Recommendation Deep fumigation before potatoes may be useful when nematode populations warrant it.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Optimal nutrition resulted in fewer P. penetrans than deficient nutrition.

Taxon: P. penetransPratylenchus penetranse0
Treatment: optimum nutrient regimee0
Interactor: Prunus aviumPrunus aviumt0host
Outcome: P. penetranse0
Direction: fewere0
Comparator: deficient nutrient regimee0

Verbatim

e0
“The optimum nutrient regime resulted in greater soil nutrient levels and plant growth; higher leaf concentrations of N, P, K, and Mg; and fewer P. penetrans than under the deficient nutrient regime.”
✓ located verbatim in the source · abstract, characters 728–926

t0
“Prunus avium”
✓ located verbatim in the source · title, characters 65–77

Title

Impact of Plant Nutrition on Pratylenchus penetrans Infection of Prunus avium Rootstocks.

H Melakeberhan; G W Bird; R Gore PubMed 1997

Other claims from this paper (8)

Intervention effect Optimal nutrition produced greater soil nutrient levels than deficient nutrition.
Intervention effect Optimal nutrition produced greater rootstock growth than deficient nutrition.
Intervention effect Optimal nutrition increased leaf N, P and K concentrations relative to deficient nutrition.
Intervention effect Optimal nutrition increased leaf Mg concentrations relative to deficient nutrition.
Mechanism Fertilizer may increase nematode mortality in soil.
Mechanism Fertilizer may improve rootstock resistance to nematode infection.
Observation Leaf Ca increased in nutrient-deficient and nematode-infected treatments, suggesting physiological stress.
Observation Pf/Pi ratios suggested possible rootstock resistance to P. penetrans, but nutrition prevented properly resolving resistance.

Mechanismhypothesisoriginal resultpositivebasis n/a

Claim · model-written summary

Fertilizer may increase nematode mortality in soil.

Taxon: Pratylenchus penetransPratylenchus penetranse1
Treatment: addition of fertilizere0
Outcome: nematode mortalitye0
Qualifier: maye0

Verbatim

e0
“The addition of fertilizer either may increase nematode mortality in the soil or improve rootstock resistance to nematode infection.”
✓ located verbatim in the source · abstract, characters 927–1059

e1
“Pratylenchus penetrans was inoculated”
✓ located verbatim in the source · abstract, characters 380–417

Title

Impact of Plant Nutrition on Pratylenchus penetrans Infection of Prunus avium Rootstocks.

H Melakeberhan; G W Bird; R Gore PubMed 1997

Other claims from this paper (8)

Intervention effect Optimal nutrition produced greater soil nutrient levels than deficient nutrition.
Intervention effect Optimal nutrition produced greater rootstock growth than deficient nutrition.
Intervention effect Optimal nutrition increased leaf N, P and K concentrations relative to deficient nutrition.
Intervention effect Optimal nutrition increased leaf Mg concentrations relative to deficient nutrition.
Intervention effect Optimal nutrition resulted in fewer P. penetrans than deficient nutrition.
Mechanism Fertilizer may improve rootstock resistance to nematode infection.
Observation Leaf Ca increased in nutrient-deficient and nematode-infected treatments, suggesting physiological stress.
Observation Pf/Pi ratios suggested possible rootstock resistance to P. penetrans, but nutrition prevented properly resolving resistance.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Pratylenchus penetrans numbers in alfalfa increased with temperature from about l0 C to 30 C.

Taxon: Pratylenchus penetransPratylenchus penetranse0
Interactor: alfalfaMedicago sativae0host
Outcome: Numbers of Pratylenchus penetranse0
Direction: increasede0
Qualifier: temperature increased from about l0 C to 30 Ce0
Setting: alfalfae0

Verbatim

e0
“Numbers of Pratylenchus penetrans in alfalfa and timothy, and to a lesser extent P. crenatus in timothy, increased substantially as temperature increased from about l0 C to 30 C.”
✓ located verbatim in the source · abstract, characters 0–178

Title

Influence of Soil Temperature and pH on Pratylenchus Penetrans and P. crenatus in Alfalfa and Timothy.

J Kimpinski; C B Willis PubMed 1981

Other claims from this paper (9)

Association Pratylenchus penetrans numbers in timothy increased with temperature from about l0 C to 30 C.
Association P. crenatus numbers in timothy increased to a lesser extent as temperature rose.
Association P. crenatus numbers in alfalfa decreased as temperature increased.
Association P. crenatus mobility in vertical soil columns decreased as temperature increased from 9.5 C to 28.5 C.
Intervention effect Raising soil pH from 5.0 to 6.9 increased P. penetrans numbers in alfalfa.
Intervention effect Raising soil pH from 5.0 to 6.9 reduced P. crenatus numbers in alfalfa.
Intervention effect Increasing soil pH significantly reduced both nematode species in timothy.
Observation The optimum soil pH for movement of P. penetrans was 6.0.
Observation Pratylenchus crenatus moved equally well over pH 5.0 to 7.0.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Pratylenchus penetrans numbers in timothy increased with temperature from about l0 C to 30 C.

Taxon: Pratylenchus penetransPratylenchus penetranse0
Interactor: timothyPhleum pratensee0host
Outcome: Numbers of Pratylenchus penetranse0
Direction: increasede0
Qualifier: temperature increased from about l0 C to 30 Ce0

Verbatim

e0
“Numbers of Pratylenchus penetrans in alfalfa and timothy, and to a lesser extent P. crenatus in timothy, increased substantially as temperature increased from about l0 C to 30 C.”
✓ located verbatim in the source · abstract, characters 0–178

Title

Influence of Soil Temperature and pH on Pratylenchus Penetrans and P. crenatus in Alfalfa and Timothy.

J Kimpinski; C B Willis PubMed 1981

Other claims from this paper (9)

Association Pratylenchus penetrans numbers in alfalfa increased with temperature from about l0 C to 30 C.
Association P. crenatus numbers in timothy increased to a lesser extent as temperature rose.
Association P. crenatus numbers in alfalfa decreased as temperature increased.
Association P. crenatus mobility in vertical soil columns decreased as temperature increased from 9.5 C to 28.5 C.
Intervention effect Raising soil pH from 5.0 to 6.9 increased P. penetrans numbers in alfalfa.
Intervention effect Raising soil pH from 5.0 to 6.9 reduced P. crenatus numbers in alfalfa.
Intervention effect Increasing soil pH significantly reduced both nematode species in timothy.
Observation The optimum soil pH for movement of P. penetrans was 6.0.
Observation Pratylenchus crenatus moved equally well over pH 5.0 to 7.0.