Didymella pinodes
foot rot: pea
Ascochyta pinodes, Didymellina pinodes, Mycosphaerella pinodes, Sphaerella pinodes, Sphaeria pinodes
Worldwide
Widespread
2024-10-28
fungus
-
Main: pea
MYCOPI
Didymella pinodes (M. pinodes in most literature) has a small host range but primarily affects peas where it is of high economic importance.
3 Known Hosts
Zea mays
corn
Not a host
CABI CPC,ISF RPLD,EPPO
No references indicating corn is a host.
Solanum lycopersicum
tomato
Not a host
CABI CPC,ISF RPLD,EPPO
No references indicate tomato is a host.
Pisum sativum
pea
Yes
CABI CPC,ISF RPLD,EPPO,MYCOPI-1
Didymella pinodes is the main causal agent of ascochyta blight, a severe fungal disease affecting peas globally. Pea seeds serve as a documented transmission pathway for D. pinodes, with the pathogen surviving in seeds for up to four years. Disease transmission occurs through water, air, soil, plant debris, and seeds. Seed transmission rates of M. pinodes vary with temperature, reaching 100% at 15°C, compared to 61.5% at 18°C and 70% at 25°C, indicating environmental conditions influence its spread.
Yes
Plating, blotter
Use of both methods suggested. These methods have not been standardized or validated.
CABI CPC,MYCOPI-3,MYCOPI-4,MYCOPI-5,MYCOPI-7
chemical, cultural
Captan and thiram, applied as dry powders to infected pea seeds, effectively reduced transmission. Removing plant debris which can act as a host. Performing timely crop inspections. Use disease-free seeds.
CABI CPC,MYCOPI-2,MYCOPI-6
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
OEPP/EPPO Global Database - European and Mediterranean Plant Protection Organization
Barilli, E., Cobos, M. J., & Rubiales, D. (2016). Clarification on host range of Didymella pinodes the causal agent of pea Ascochyta blight. Frontiers in plant science, 7, 592.
Mathur, S. B., Haware, M. P., & Hampton, R. O. (1988). Identification, significance and transmission of seed borne pathogens. In World crops: Cool season food legumes: A global perspective of the problems and prospects for crop improvement in pea, lentil, faba bean and chickpea (pp. 351-365). Dordrecht: Springer Netherlands.
Onfroy, C., Tivoli, B., Corbiere, R., & Bouznad, Z. (1999). Cultural, molecular and pathogenic variability of Mycosphaerella pinodes and Phoma medicaginis var. pinodella isolates from dried pea (Pisum sativum) in France. Plant Pathology, 48(2), 218–229
Khan, T. N., Timmerman-Vaughan, G. M., Rubiales, D., Warkentin, T. D., Siddique, K. H. M., Erskine, W., & Barbetti, M. J. (2013). Didymella pinodes and its management in field pea: challenges and opportunities. Field Crops Research, 148, 61-77.
Roger, C., Tivoli, B., & Huber, L. (1999). Effects of temperature and moisture on disease and fruit body development of Mycosphaerella pinodes on pea (Pisum sativum). Plant Pathology, 48(1), 1–9
Maude, R. B. (1996). Seedborne diseases and their control: principles and practice.
Gorfu, D., & Sangchote, S. (2003). Effects of seed treatment fungicides on Ascochyta pinodes of field pea under controlled and field conditions. Agriculture and Natural Resources, 37(4), 429-444.
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