Phomopsis theae (branch canker of tea)

Pictures

Picture	Title	Caption	Copyright
Title Damaged patch of tea plantation Caption General appearance of a patch of field affected by collar and branch canker disease. Copyright Tea Research Institute of Sri Lanka	Damaged patch of tea plantation	General appearance of a patch of field affected by collar and branch canker disease.	Tea Research Institute of Sri Lanka
Title Infected tea bush Caption Yellowed foliage of a tea bush affected by collar and branch canker disease. Copyright Tea Research Institute of Sri Lanka	Infected tea bush	Yellowed foliage of a tea bush affected by collar and branch canker disease.	Tea Research Institute of Sri Lanka
Title Damaged tea bush (close-up view) Caption Close-up of affected tea bush showing cankers at the bases of many branches. Copyright Tea Research Institute of Sri Lanka	Damaged tea bush (close-up view)	Close-up of affected tea bush showing cankers at the bases of many branches.	Tea Research Institute of Sri Lanka
Title Girdling damage to tea plants Caption A group of plants where girdling has completed recently, showing different degrees of foliage symptoms. Copyright Tea Research Institute of Sri Lanka	Girdling damage to tea plants	A group of plants where girdling has completed recently, showing different degrees of foliage symptoms.	Tea Research Institute of Sri Lanka
Title Bark damage Caption The bark is totally denuded (ring-barked) at the collar. Copyright Tea Research Institute of Sri Lanka	Bark damage	The bark is totally denuded (ring-barked) at the collar.	Tea Research Institute of Sri Lanka
Title Collar damage Caption Collar damage to tea bush. Copyright Tea Research Institute	Collar damage	Collar damage to tea bush.	Tea Research Institute
Title Sporangiophore, sporangia, and Oogonia Caption Sporangiophore and sporangia (left); Oogonia with amphigynous antheridia and oospores x 500 (right). CMI Descriptions of Pathogenic Fungi and Bacteria No. 772. CAB International, Wallingford, UK. Copyright CABI BioScience	Sporangiophore, sporangia, and Oogonia	Sporangiophore and sporangia (left); Oogonia with amphigynous antheridia and oospores x 500 (right). CMI Descriptions of Pathogenic Fungi and Bacteria No. 772. CAB International, Wallingford, UK.	CABI BioScience
Title P. theae - line drawing Caption A, Vertical section of pycnidium; B, conidiophores; C, conidia. CMI Descriptions of Pathogenic Fungi and Bacteria No. 772. CAB International, Wallingford, UK. Copyright CABI BioScience	P. theae - line drawing	A, Vertical section of pycnidium; B, conidiophores; C, conidia. CMI Descriptions of Pathogenic Fungi and Bacteria No. 772. CAB International, Wallingford, UK.	CABI BioScience

Identity

Preferred Scientific Name

• Phomopsis theae Petch (1925)

Preferred Common Name

• branch canker of tea

Other Scientific Names

• Leptothyrium theae (Petch)

International Common Names

• English: basal rot; collar canker of tea; collar rot of tea; dieback of tea; Phomopsis canker; stem canker of tea; up-country canker
• Spanish: chancro del cuello del te; marchitez del te
• French: chancre du collet du theier; deperissement du theier

EPPO code

• PHOPTH (Phomopsis theae)

Taxonomic Tree

• Domain: Eukaryota
•     Kingdom: Fungi
•         Phylum: Ascomycota
•             Subphylum: Pezizomycotina
•                 Class: Sordariomycetes
•                     Subclass: Sordariomycetidae
•                         Order: Diaporthales
•                             Family: Diaporthaceae
•                                 Genus: Phomopsis
•                                     Species: Phomopsis theae

Distribution Table

The distribution in this summary table is based on all the information available. When several references are cited, they may give conflicting information on the status. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report.

Host plants/Plants Affected

Growth Stages

List of Symptoms

Plant Trade

References

Agnihothrudu V, 1995. Some More Important Fungal Diseases of Tea. In: Global Conference on Advances in Research on Plant Diseases and their Management, February 12-17, 1995. Udaipur, India: Society of Mycology and Plant Pathology.

Arulpragasam PV, 1986. Common Diseases of Tea. In: Sivapalan P, et al., eds. Handbook on Tea. Sri Lanka: Tea Research Institute of Sri Lanka, 123-142.

Arulpragasam PV, 1992. Disease Control in Asia. In: Willson KC, Clifford MN, ed. Tea Cultivation to Consumption. UK: Chapman & Hall, 353-374.

de Silva RL, Fernando RA, 1968. The Influence of Shallow Topsoil on the incidence of Collar and Branch Canker Disease of Tea (Phomopsis theae). Tea Quarterly, 39:87-91.

EPPO, 2014. PQR database. Paris, France: European and Mediterranean Plant Protection Organization. http://www.eppo.int/DATABASES/pqr/pqr.htm

Gadd CH, 1928. Report of the Mycologist (for 1927). Bulletin, Tea Research Institute of Ceylon, 2:13.

Gadd CH, 1949. The Commoner Diseases of Tea. Monographs on Tea Production in Ceylon, No. 2. Tea Research Institute of Ceylon.

Hester DN, 1973. Notes on collar and branch canker of tea (Phomopsis theae) in Mufindi, Tanzania. Tea in East Africa, 2:9-12

Karakaya A, 2009. Phomopsis theae on Camellia sinensis in Turkey. Journal of Plant Pathology, 91(4, Supplement):S4.105. http://www.sipav.org/main/jpp/

Mulanje M, 1986. Effect of Drought and Irrigation on the incidence of Stem and Branch canker caused by Phomopsis theae Petch. Quarterly News Letter, Tea Research Foundation of Central Africa, 83:20-22.

Mulder D, 1962. Collar canker in Clonal Plants caused by Leptothyrium theae Petch. Tea Quarterly, 33:152-155.

Onsando JO, 1988. Tea diseases situation in Kisii District. Tea, 9(2):47-49

Petch T, 1923. The Diseases of the Tea Bush. London, UK: Macmillan.

Ram CSV, 1960. Report of the Plant Pathologist. 1959-1960.

Ram CSV, 1980. Influence of genetic factors and cultural practices on Phomopsis Canker disease of tea. Bulletin, United Planters' Association of Southern India, 30:5-17.

Rattan PS, 1992. Pest and Disease Control in Africa. In: Willson KC, Clifford MN, eds. Tea Cultivation to Consumption. UK: Chapman & Hall, 331:352.

Sarmah KC, 1960. Diseases of Tea and Associated crops in North-East India. Memorandum No. 26. Indian Tea Association.

Shanmuganathan N, 1965. Collar and Branch Canker in young tea caused by Phomopsis theae. Petch Tea Quarterly, 36:14-21.

Shanmuganathan N, 1969. Studies on Collar and Branch Canker of young Tea (Phomopsis theae Petch), III-Clonal Resistance. Tea Quarterly, 40:164-174.

Shanmuganathan N, Bopearatchy RN, 1972. Studies on collar and branch canker disease of young tea (Phomopsis theae Petch). 4. Effects of some cultural treatments on disease incidence and severity. Tea Quarterly, 43(1/2):36-44

Shanmuganathan N, Rodrigo WRF, 1966. Studies on Collar and Branch Canker of young Tea (Phomopsis theae Petch), I-Recent Observations on Disease Incidence. Tea Quarterly, 37:221-228.

Shanmuganathan N, Rodrigo WRF, 1967. Studies on Collar and Branch Canker of young Tea (Phomopsis theae Petch), II-Influence of soil moisture on the disease. Tea Quarterly, 38:320-330.

UK CAB International, 1993. Phomopsis theae. [Distribution map]. Distribution Maps of Plant Diseases, October (Edition 2). Wallingford, UK: CAB International, Map 493.

Zongmao C, Xuefen C, 1989. A World List of Pathogens Reported on Tea Plant. Journal of Tea Science, 9(1):73-88.

Distribution Maps

• = Present, no further details
• = Evidence of pathogen
• = Widespread
• = Last reported
• = Localised
• = Presence unconfirmed
• = Confined and subject to quarantine
• = See regional map for distribution within the country
• = Occasional or few reports

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