Vol. 11, Issue 10 (2022)

Author(s):
Vidyashree LK, Dr. Venkatesh and Dr. Pankaja NS

Abstract:
Mungbean Yellow Mosaic Virus (MYMV) is destructive disease, distributed all around the country and causes major damage to pulse crops. Yellow mosaic disease (YMD) of pulses caused by Mungbean Yellow Mosaic Virus (MYMV) is transmitted by whiteflies (Bemisia tabaci. Genn.) Which causes 10-100 per cent of yield loss in mungbean and urdbean. Experiment was conducted to analyze the preferential behavior of MYMV transmitting vector (Bemisia tabaci. Genn.) Between mungbean and urdbean by inoculating the viruliferous whiteflies which were acquired from MYMV infected mungbean and urdbean plants, to the different hosts in different treatments. The results of the preferential studies reported, significant difference in percent disease incidence between mungbean and urdbean plants. The maximum disease incidence of 63.33 per cent was observed in the mungbean plants in treatment T₂ and urdbean plants shown incidence of 43.33 per cent in the treatment T₄, similarly the severity was also maximum in mungbean (83.60 %) than the urdbean (47.88 %) plants in the respective treatments. To confirm the preferential studies both mungbean and urdbean plants were grown together and inoculated by the viruliferous whiteflies acquired from MYMV infected urdbean plants (T₅) and mungbean plants (T₆), in both the treatments disease incidence of mungbean (52.2%) was maximum than compared to the urdbean plants (18.2 %). The studies noticed that mungbean is the most preferred host for the virus and its vector than compared to the urdbean plants.