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ASTA Pest Database for Seeds (PeDS)
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Sclerophthora rayssiae var. zeae
(brown stripe downy mildew )
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Scientific name
Sclerophthora rayssiae var. zeae
Common Name
brown stripe downy mildew
Other Names
Distribution
Tropical Asia
US Distribution
Not known occur
Data Reviewed
2021-08-17 21:13:10
Type
fungus
Countries Listing Pest
China
Host Range
corn, crabgrasses
Acronym
SCPHRZ
Comments
3 Known Hosts
Zea mays (corn)
Scientific name
Zea mays
Crop
corn
Seed a Pathway
Yes
Reference
SCPHRZ-1,SCPHRZ-2,SCPHRZ-3,ISF RPLD
Comments:
Oospores external, Hyphae may be internal.
Seed test
Yes
Detection type
Embryo staining and microscopic examination.
Reccomended Health Test
Test Reference
SCPHRZ-2,SCPHRZ-1
Risk Type
Metalaxyl, other systemic fungicides
Risk Comments
Resistant cultivars available. Cold storage reduced infection.
Risk Reference
SCPHRZ-1,SCPHRZ-3,ISF RPLD
Reference Index
SCPHRZ-1
Sclerophthora rayssiae var. zeae In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc."
SCPHRZ-2
Singh, et. al. 1967, Internally seedborne nature of two downy mildews on Corn. Plant Disease Reporter 51; 1010-1012
SCPHRZ-3
Global Pest and Disease Database - Version 2.3.11, 2012; Pest ID 600. Developed by the Center for Integrated Pest Management; USDA
ISF RPLD
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
Sorghum bicolor (sorghum)
Scientific name
Sorghum bicolor
Crop
sorghum
Seed a Pathway
No
Reference
Comments:
Not a host. No references found indicating sorghum is a host in nature.
Seed test
Detection type
Reccomended Health Test
Test Reference
Risk Type
Risk Comments
Risk Reference
Digitaria spp. (crabgrass)
Scientific name
Digitaria spp.
Crop
crabgrass
Seed a Pathway
No
Reference
SCPHRZ-1,SCPHRZ-4
Comments:
No references found indicating seed is a pathway. Maybe inferred because seed is a pathway in corn. Primarily soil borne.
Seed test
Detection type
Reccomended Health Test
Test Reference
Risk Type
Risk Comments
Risk Reference
Reference Index
SCPHRZ-1
Sclerophthora rayssiae var. zeae In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc."
SCPHRZ-4
Singh JP, Renfro BL, Payak MM, 1970. Studies on the epidemiology and control of brown stripe downy mildew of maize (Sclerophthora rayssiae var. zeae). Indian Phytopathology, 23:194-208
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