APSnet featured image - Cassava leaves infected with Indian cassava mosaic virus

APSnet Featured Image

Cassava leaves infected with Indian cassava mosaic virus exhibit bright yellow patches separated by normal green tissue
The plant at the left is healthy. The plant at the right is diseased, showing reduced leaf size, distortion and stunting with reduced leaf canopy

V. R. Prakash
Valiyaveedu, Cherukunnam, Anayadi P.O., Pathanamthitta Dist., Kerala, India
Email: prakashvr2@rediffmail.com

Host: Cassava (Manihot esculenta Crantz)
Disease name: Indian cassava mosaic
Pathogen name: Indian cassava mosaic virus

The disease was reported first in the south Indian state of Tamil Nadu during 1966. The disease significantly reduces stem girth and yield. Tuber splitting is also observed. The primary spread of the disease is through infected planting materials and secondary spread is by an insect vector, white fly (Bemisia tabaci Genn.), in the field in a persistent manner. The use of disease-free cuttings and elimination of the chance of infection through insect vectors are the main principles of management of this disease.

APS publication number: IW000093

Picture your photograph as the APSnet Image of the Week!
Click here to find out more.

License to Copy. This notice hereby grants permission to APSnet users to copy the Image of the Week for noncommercial, personal use. All components of APSnet are copyrighted (including the Image of the Week) and may not be reproduced or distributed except by express permission of APS. Copyright is not claimed for material provided by United States government employees as part of their work. APSnet copyright extends to images, text, graphics, photographs, illustrations, audio, video, computer software, and all other elements of the site.

Instructions to Copy. For PC, position your mouse cursor on the week’s image, click the right mouse button, and choose "Save Picture As..." or "Save this Image as..." whichever is the case. For Mac, click the only mouse button and follow the same steps. Users may want to set up a specific directory and file naming scheme for storing images; otherwise, they will be saved using your system defaults. Images may be used in any software application that supports JPEG file format or viewed in an Internet browser as local files.