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Pseudomonas savastanoi pv. phaseolicola (halo blight )
Pseudomonas savastanoi pv. phaseolicola
halo blight
Pseudomonas syringae pv. phaseolicola, Pseudomonas phaseolicola
Worldwide
Reported in the US where beans are grown. Not common in dry climates where most bean seed is produced.
2023-08-21
bacterium
Primarily species of Phaseolus. Reported on pea and soybean, though rare
PSDMPH
4 Known Hosts
Glycine max
soybean
No
Soybean is not a primary host for this pathogen. No references found indicating soybean seed is a pathway.
Phaseolus vulgaris
common bean
Yes
PSDMPH-1, PSDMPH-4, PSDMPH-7, ISFRPLD
Seed transmission of this pathogen is well documented and accepted by the industry for common bean
Yes
Seed wash, Dilution plating
This test has been standardized and validated. Commercial testing is available.
Seed wash, dilution plating is the standard test of the NSHS
PSDMPH-2, PSDMPH-3
Antibiotics 
PSDMPH-5, PSDMPH-6
PSDMPH-1
Pseudomonas savastanoi pv. phaseolicola In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
PSDMPH-4
Grogan RG, Kimble KA, 1967. The role of seed contamination in the transmission of Pseudomonas phaseolicola in Phaseolis vulgaris. Phytopathology, 57:28-31.
PSDMPH-7
Zaumeter. 1932. Comparative pathological histology of three bacterial diseases of Bean. Journal of Agricultural Research 44; 605-632
ISFRPLD
PSDMPH-2
Pseudomonas savastanoi pv. phaseolicola Seed Health Testing Method International Seed Testing Association, 2016. www.seedtest.org Zurich Switzerland
PSDMPH-3
Pseudomonas savastanoi pv. phaseolicola Seed Health Testing Method Be 1.2. 2016.National Seed Health System. www.nshs.iastate.edu
PSDMPH-5
Hagedorn DJ, 1967. Streptomycin seed treatment for control of bean halo blight. Plant Disease Reporter, 51:544-548.
PSDMPH-6
Taylor and Dudley. 1977. Seed treatment for the control of halo-blight of beans (Pseudomonas phaseolicola). Annuals of Applied Biology 85; 223-232
Pisum sativum
pea
No
Pea is not a primary host for this pathogen No references found indicating pea seed is a pathway.
Vigna spp.
cowpea, mung bean
No
Vigna spp. are not primary hosts for this pathogen. No references found indicating seed is a pathway.
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