The cassava mosaic virus disease is caused by a germ which cannot be seen by the naked eye. To view the full video go to: www.accessagriculture.org/cas...
spray soap water on bud area then that area will be wither . then it will be ok. but you can't treat old leaves.when you plant next don't use affected area stems.
For further information, please watch the full video here. (www.accessagriculture.org/cassava-mosaic-virus) If you register on Access Agriculture www.accessagriculture.org/ you will also be able to download a factsheet where you will find contact details to people and organisations with knowledge on this subject.
