Yellow mosaic virus disease of moong spreads by

Answer: Option A

Yellow mosaic virus disease of moong spreads by Bemisia tabaci.
Mungbean yellow mosaic virus (MYMV) is a plant pathogenic virus of the family Geminiviridae. It is a major exotic disease of mungbeans causing leaf discoloration and yield losses.
Yellow mosaic disease of many legumes is often transmitted by silverfly (Bemisia tabaci). It is characterized by a bright yellow mosaic on the leaves of infected plants and causes significant losses to mungbean.