Epidemiology of blackleg (Leptosphaeria maculans) of canola (Brassica napus) in relation to maturation of pseudothecia and discharge of ascospores in Western Australia

Phytopathology

Volumn 97, Issue 8, 2007, Pages 1011-1021

  Khangura, R ^a   Speijers, J ^a   Barbetti, M J ^b   Salam, M U ^a   Diggle, A J ^a  

^a DEPARTMENT OF AGRICULTURE AND FOOD WESTERN AUSTRALIA   (Australia)

^b UNIVERSITY OF WESTERN AUSTRALIA   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

BRASSICA NAPUS; BRASSICA NAPUS VAR. NAPUS; FUNGI; LEPTOSPHAERIA BICOLOR; LEPTOSPHAERIA MACULANS;

EID: 34547824794     PISSN: 0031949X     EISSN: None     Source Type: Journal    
DOI: 10.1094/PHYTO-97-8-1011     Document Type: Article

References (23)

1. Aubertot, J-N., Pinochet, X., and Doré, T. 2004. Analysis of the effects of sowing date and nitrogen availability during vegetative stages of on Phoma stem canker (Leptosphaeria maculans) development on two winter oilseed rape cultivars. Crop Prot. 23:635-645.
2. Bokor, A., Barbetti, M. J., Brown, A. G. P., MacNish, G. C., and Wood, P. McR. 1975. Blackleg of rapeseed. J. Agric. West. Aust. 16:3-7.
3. Brunin, B., and Lacoste, L. 1970. Recherches sur la maladie du colza due a Leptosphaeria maculans (Dem.) Ces. & Not. II. Pouvoir pathogene des ascospores. Ann. Phytopathol. 3:477-488.
4. Canola Association of Australia. 2004. CAA forecast Dec 2004. Online publication, www.canolaaustralia.com/operations/crop_forecast
5. Gladders, P., and Musa, T. M. 1980. Observations on the epidemiology of L. maculans stem canker in winter oilseed rape. Plant Pathol. 29:28-37.
6. Gosende, S., Penaud, A., Aubertot, J. N. Schneider, O., and Pinochet, X. 2003. Evolution of soil surface oilseed rape stubbles and their ability to produce spores of Leptosphaeria maculans: Preliminary results. Pages 1166-1168 in: Proc. 11th Int. Rapeseed Congr. Copenhagen, Denmark.
7. Guo, X. W., and Fernando, W. G. D. 2005. Seasonal and diurnal patterns of spore dispersal by Leptosphaeria maculans from canola stubble in relation to environmental conditions. Plant Dis. 89:97-104.
8. Hershman, D. E., and Perkins, D. M. 1995. Etiology of canola blackleg in Kentucky and seasonal discharge patterns of Leptosphaeria maculans ascospores from infected canola stubble. Plant Dis. 79:1225-1229.
9. Huang, Y. J., Fitt, B. D. L., Jedryczka, M., Dakowska, S., West, J. S., Gladders, P., Steed, J. M., and Li, Z. Q. 2005. Patterns of ascospore release in relation to Phoma stem canker epidemiology in England (Leptosphaeria maculans) and Poland (Leptosphaeria biglobosa). Eur. J. Plant Pathol. 111:263-277.
10. Khangura, R. 2004. Influence of chemicals on inoculum production by Leptosphaeria maculans on canola (Brassica napus L.) residues. J. Food Agric. Environ. 2:188-192.
11. Khangura, R., and Barbetti, M. J. 2001. Prevalence of blackleg (Leptosphaeria maculans) of canola (Brassica napus) in Western Australia. Aust. J. Exp. Agric. 41:71-80.
12. Khangura, R., and Barbetti, M. J. 2002. Efficacy of Impact to manage blackleg (Leptosphaeria maculans) in canola. Aust. J. Agric. Res. 53:311-321.
13. Khangura, R., and Barbetti M. J. 2004. Time of sowing and fungicides affect severity of blackleg (Leptosphaeria maculans) and yield of canola (Brassica napus) in Western Australia. Aust. J. Exp. Agric. 44:1205-1213.
14. Marcroft, S. J., Sprague, S. J., Pymer, S. J., Salisbury, P. A., and Howlett, B. J. 2003. Temporal and spatial relationships between inoculum source and severity of blackleg (Leptosphaeria maculans) of canola crops in south-eastern Australia. Aust. J. Exp. Agric. 43:1231-1236.
15. McGee, D. C. 1977. Blackleg (Leptosphaeria maculans (Desm.) Ces. et de Not.) of rapeseed in Victoria: sources of infection and relationships between inoculum, environmental factors and disease severity. Aust. J. Agric. Res. 28:53-62.
16. McGee, D. C., and Petrie, G. A. 1979. Seasonal patterns of ascospore discharge by Leptosphaeria maculans in relation to blackleg of oilseed rape. Phytopathology 69:586-589.
17. Pérès, A., Poisson, B., Le Sourne, V., and Maisonneuve, C. 1999. Leptosphaeria maculans: Effect of temperature, rainfall and humidity on the formation of pseudothecia. Proc. 10th Int. Rapeseed Congr. Canberra, Australia. Online publication/au/gcirc/3/106.
18. Pérès, A., Poisson, B., Penaud, A., Jain, L., and Pilorge 1999. Leptosphaeria maculans (Phoma lingam): A summary of three years of epidemiological studies (1995, 1996 and 1997). Proc. 10th Int. Rapeseed Congr. Canberra, Australia. Online publication /au/gcirc/3/105.
19. Petrie, G. A. 1995. Long-term survival and sporulation of Leptosphaeria maculans (blackleg) of naturally-infected rapeseed/canola stubble in Saskatchewan. Can. Plant Dis. Surv. 75:23-34
20. Petrie, G. A. 1995. Patterns of ascospore discharge by Leptosphaeria maculans (blackleg) from 9- to 13-month-old naturally infected rapeseed/canola stubble from 1977 to 1993 in Saskatchewan. Can. Plant Dis. Surv. 75:35-43.
21. Poisson, B., and Pérès, A. 1999. Studies related to maturation of Leptosphaeria maculans pseudothecia on rapeseed residues infected by stem canker. Proc. 10th Int. Rapeseed Congr. Canberra, Australia. Online publication/au/gcirc/3/109.
22. Rempel, C. B., and Hall, R. 1993. Dynamics of ascospores of blackleg in autumn on stubble of the current year's crop of spring rapeseed. Can. J. Plant Pathol. 15:182-184.
23. Rossi, V., Ponti, I., Marinelli, M., Giousè, S., and Bugiani, R. 2000. A new model estimating the seasonal pattern of air-borne ascospores of Venturia inaequalis (Cook) Wint. in relation to weather conditions. J. Plant Pathol. 82:111-118.