Abstract
Infestations of root-lesion nematodes—Pratylenchus vulnus—occur in all important walnut growing areas in California and high population densities cause a disease of economic importance. The disease is characterized by stunting, die-back, and chlorosis in the tops of the trees; by yield reduction; and by root symptoms consisting of black lesions, longitudinal cracking, and even death of entire roots. The disease has been induced experimentally by adding a suspension of the root-lesion nematodes to California black walnut seedlings.
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Claims 6
Claim · model-written summary
Root-lesion nematode (Pratylenchus vulnus) infestations occur in all important walnut growing areas in California.
- Taxon
- walnute1
- Interactor
- Pratylenchus vulnusPratylenchus vulnuse1pathogen
- Outcome
- Infestations of root-lesion nematodese1
- Setting
- Californiae1
Verbatim
e1“Infestations of root-lesion nematodes—Pratylenchus vulnus—occur in all important walnut growing areas in California”
Claim · model-written summary
High root-lesion nematode population densities cause a disease of economic importance in walnut.
Verbatim
t0“nematode on walnut”
e1“Infestations of root-lesion nematodes—Pratylenchus vulnus—occur in all important walnut growing areas in California”
e2“high population densities cause a disease of economic importance”
Claim · model-written summary
The nematode disease of walnut is characterised by stunting, die-back and chlorosis in the tops of the trees.
Verbatim
t0“nematode on walnut”
e3“stunting, die-back, and chlorosis in the tops of the trees”
Claim · model-written summary
The nematode disease of walnut is characterised by yield reduction.
Verbatim
t0“nematode on walnut”
e4“yield reduction”
Claim · model-written summary
The disease causes root symptoms of black lesions, longitudinal cracking and even death of entire roots.
Verbatim
t0“nematode on walnut”
e5“black lesions, longitudinal cracking, and even death of entire roots”
Claim · model-written summary
The disease was induced experimentally in California black walnut seedlings by adding a suspension of root-lesion nematodes.
- Taxon
- California black walnut
Juglans californicae6 - Organ / stage
- seedlingse6
- Treatment
- adding a suspension of the root-lesion nematodese6
- Interactor
- root-lesion nematodese6pathogen
- Outcome
- diseasee6
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“The disease has been induced experimentally by adding a suspension of the root-lesion nematodes to California black walnut seedlings”