Banana Crop Under attack of Butterfly Pest in the State

Published on: 08 Jul, 2014
Published under: Kerala Agriculture News

Kerala Agricultural University researchers have found a new devastating pest that threatens the banana crops in the state.

The pest, identified as the Banana Skipper or Palm Redeye (Erionota thrax), is a chocolate-brown butterfly belonging to the family Hesperidae. It is also known as Banana Leaf Roller because its larva or caterpillar cuts the leaves at the edges and makes a series of cylindrical rolls before developing into a pupa. A heavy infestation could damage the whole banana leaf, leaving only the midrib intact.

According to Dr. Arthur Jacob, Professor and Head of the KAU’s instructional farm at Vellayani near here, the pest was reported last year from different locations in the State. He said the damage was now found to be spreading to the southern parts, especially Thiruvananthapuram, a major producer of banana. The infestation has been found to be heavy in a few banana farms at Kalliyoor, Kakkamoola and Pallichal near Vellayani.

Originally reported from Southeast Asia, the banana leaf roller pest is distributed in Northeast India, Sikkim, Nepal, the Andaman islands, Mauritius, Malaysia, China, Vietnam, Hawaii and Papua New Guinea. Measuring 4 to 6 cm in length, the white powder-coated caterpillar prefers banana leaves though it is occasionally found to infest coconut palms also.

Citing reports from other countries, Dr. Arthur said natural control was the best remedy. The introduction of natural parasites has been advocated to bring the damage under control.


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