A. BalamuruganDepartment of Plant Pathology (Student)Madurai Agricultural College and Research Institute (TNAU), Tamil Nadu, India Email: abalamurugan555@gmail.com
Host: Carica papaya L. (papaya)Disease name: Papaya leaf curlPathogen name: Papaya leaf curl virus (PLCV)
Papaya tree severely infected with Papaya leaf curl virus.
Papaya leaf curl was first reported in Tamil Nadu in 1939. The most prominent symptoms are the rolling of the leaves downward and inward in the form of an inverted cup and the thickening of veins. Sometimes all the leaves at the top of the plant are affected by these symptoms. In advanced stages of the disease, defoliation takes place and the growth of the plant is arrested. PLCV is in the family Geminiviridae. It is not transmitted mechanically. The virus vector is the silverleaf whitefly, Bemisia tabaci.
Management strategies: As soon as the disease is noticed, the plant must be uprooted and destroyed. Avoid growing alternative hosts such as tomato and tobacco near papaya. Spray insecticides for vector control.
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