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Tikka Disease by Cercospora

Tikka Disease of Ground nut crop is caused by Cercospora. All parts of the host plant above soil level are attacked by the disease. The first visible symptoms appear on the leaflets of lower leaves as dark spots which at a later stage, are surrounded by yellow rings. The spots are circular. They appear in a large number on the leaves. Mature spots are dark-brown to almost black, particularly on the upper surface of the leaflets. Cercospora personata possesses mycelium which is entirely internal and ramifies intercellularly by developing haustoria in the palisade and spongy mesophyll cells of the host. The mycelium forms dense stroma which produces long septate to non- septate geniculate hypophyllous conidiophores. The conidiophores emerge in tufts by rupturing host epidermis. Conidia are pale-brown, obclavate or cylindrical, septate, measuring 30-50 µ in length and 5-6 µ in breadth. For details, please contact: Dr. Jayarama Reddy, Professor, St. Joseph's College(Autonomous)36, Langford Road, Bengaluru-27. India. Director, Centre forMolecular and Computational Biology. Editor in Chief, International Journal of Biological Research-ISSN-2321-0524. www.biovistas.org  www.sjc.ac.in  drjayaramreddy@sjc.ac.in Research Gate: https://www.researchgate.net/profile/... YouTube Channel: Dr. Jayarama Reddy St. Joseph's College ID: UCVsumndiFmODvSrrL_TUClQGoogle Direction:https://goo.gl/maps/5joj6Fgezb52 ~-~~-~~~-~~-~ Please watch: "St. Joseph's College| Green Campus| Roof-top solar energy harvesting|250 MW| Jawahar Solar Mission"    • Видео   ~-~~-~~~-~~-~