Abstract
Disease cycle, symptoms and management practices for phytophthora root rot are discussed in this NebGuide. Phytophthora root rot (PRR) is a major cause of seedling death in newly established alfalfa, and causes a progressive decline of established stands in Nebraska. This disease is caused by the fungus Phytophthora megasperma f. sp. medicaginis and occurs in most of the alfalfa producing areas in North America. The Phytophthora that infects alfalfa is different from the Phytophthora that causes root rot in soybeans. Growers sometimes think the two diseases are the same for the respective crops, but they are two different diseases with the common name of phytophthora root.
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Claims 5
Claim · model-written summary
Phytophthora root rot causes seedling death in newly established alfalfa.
- Taxon
- alfalfa
Medicago sativae0 - Organ / stage
- seedlinge0
- Interactor
- Phytophthora
Phytophthorae0pathogen - Outcome
- seedling deathe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phytophthora root rot (PRR) is a major cause of seedling death in newly established alfalfa”
Claim · model-written summary
Phytophthora root rot causes decline of established alfalfa stands in Nebraska.
- Taxon
- alfalfaMedicago sativat0
- Outcome
- progressive decline of established standse0
- Setting
- Nebraskae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“causes a progressive decline of established stands in Nebraska”
t0“Alfalfa”
Claim · model-written summary
Phytophthora megasperma f. sp. medicaginis causes this alfalfa disease.
- Taxon
- alfalfaMedicago sativat0
- Interactor
- Phytophthora megasperma f. sp. medicaginis
Phytophthora megaspermae0pathogen - Outcome
- disease is causede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This disease is caused by the fungus Phytophthora megasperma f. sp. medicaginis”
t0“Alfalfa”
Claim · model-written summary
The disease occurs in most North American alfalfa-growing areas.
- Taxon
- alfalfaMedicago sativae0
- Outcome
- occurs in most of the alfalfa producing arease0
- Setting
- North Americae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“occurs in most of the alfalfa producing areas in North America”
Claim · model-written summary
The Phytophthora infecting alfalfa differs from that causing soybean root rot.
- Taxon
- alfalfaMedicago sativae0
- Interactor
- PhytophthoraPhytophthorae0pathogen
- Outcome
- different from the Phytophthora that causes root rot in soybeanse0
- Comparator
- soybeanse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Phytophthora that infects alfalfa is different from the Phytophthora that causes root rot in soybeans”