International Journal of Forestry and Crop Improvement

Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

New Finding of the Phoma Leaf Spot of the Varnish Tree (Koelreuteria paniculata) in Himachal Pradesh


Affiliations
1 Department of Plant Pathology, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.), India
     

   Subscribe/Renew Journal


A new foliar disease of Koelreuteria paniculata tree is reported during continuous surveys conducted at Solan district of Himachal Pradesh during August, 2015 to December, 2015. On the basis of morphological characteristics the fungus, the fungus was identified as Phoma eupyrena which produces symptoms on the leaves as numerous small, pale, irregular spots which are light brown with dark black margins and blightening appearance at the apex region initially. Phoma eupyrena form pycnidia, whose range varied between 240-250 μm in diameter and conidia are hyaline, short, cylindrical, mostly straight and unicellular. Conidial size ranged between 3-6 × 1.5-3 μm.

Keywords

Phoma eupyrena, Koelreuteria paniculata, Pycnidia.
Subscription Login to verify subscription
User
Notifications
Font Size


  • Boerema, G.H. (1964). Phoma herbarum Westend., the type species of the form genus Phoma Sacc. Persoonia, 3: 9-16.

  • Brazauskiene, I. and Petraitiene, E. (2004). Disease incidence and severity of phoma stem canker (Phoma lingam) on winter oilseed rape (Brassica napus L.) in Lithuania as affected by different prochloraz and tebuconazole application times/Befallshaufigkeit und Befallsstarke von Phoma lingam an Winterraps (Brassica napus L.) in Litauen in Abhangigkeit von verschiedenen Applikationszeitpunkten von Prochloraz und Tebuconazol. J. Plant Diseases & Protec., 111(5): 439-450.

  • Brun, H., Chevre, A.M., Fitt, B.D.L., Powers, S., Besnard, A.L., Ermel, M., Huteau, V., Marquer, B., Eber, F., Renard, M., Andrivon, D. (2010). Quantitative resistance increases the durability of qualitative resistance to Leptosphaeria maculans in Brassica napus. New Phytologist, 185: 285-99.

  • Edward, F.G. and Dennis, G.W. (1993). Koelreuteria paniculata Goldenraintree. Fact Sheet ST-338.

  • Fitt, B.D.L., Brun H., Barbetti, M.J. and Rimmer, S.R. (2006). World-wide importance of Phoma stem canker (Leptosphaeria maculans and L. biglobosa) on Oilseed rape (Brassica napus). European J. Plant Pathol., 114(1): 3-15.

  • Gilman, E.F. and Watson, D.G. (1993). Cordia boissieri wild-olive. Forest Service Department of Agriculture, 1-3.

  • Gupta, B.L. (1945). Forest Flora of Chakrata, Dehra Dun and Saharanpur. A good flora for the middle Himalayan forests, sparsly illustrated Forest Research Institute Press.

  • James, R.L. (1983). Phoma blight of conifer seedlings. Nursery Disease Notes 3. USDA Forest Service, Northern Region, Forest Pest Management. 8 p.

  • McGinnis, M.R. (1980). Laboratory handbook of medical mycology. Academic Press.

  • The Plantsman (1985-1986). Royal Horticultural Society 1985 Excerpts from the periodical giving cultivation details and other notes on some of the useful plants. Vol 7.


Abstract Views: 158

PDF Views: 1




  • New Finding of the Phoma Leaf Spot of the Varnish Tree (Koelreuteria paniculata) in Himachal Pradesh

Abstract Views: 158  |  PDF Views: 1

Authors

Sunita Chandel
Department of Plant Pathology, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.), India
Vijay Kumar
Department of Plant Pathology, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.), India

Abstract


A new foliar disease of Koelreuteria paniculata tree is reported during continuous surveys conducted at Solan district of Himachal Pradesh during August, 2015 to December, 2015. On the basis of morphological characteristics the fungus, the fungus was identified as Phoma eupyrena which produces symptoms on the leaves as numerous small, pale, irregular spots which are light brown with dark black margins and blightening appearance at the apex region initially. Phoma eupyrena form pycnidia, whose range varied between 240-250 μm in diameter and conidia are hyaline, short, cylindrical, mostly straight and unicellular. Conidial size ranged between 3-6 × 1.5-3 μm.

Keywords


Phoma eupyrena, Koelreuteria paniculata, Pycnidia.

References