American Journal of Plant Sciences (2019) 10, 44-54

Jesmin Nahar Joly, Hosna Ara Chowdhury, Abdullah Ali Imtiaz, Fatema Begum, Hasibur Rahman and Md. Belal Hossain (2019)
Efficacy of less toxic phytochemicals to prevent the insect vector of Mungbean yellow mosaic virus (MYMV)
American Journal of Plant Sciences 10 (1), 44-54
Abstract: Planting material BARI mungbean-5 and two phytochemicals viz. Imitaf, active ingredient imidacloprid and ACmix, active ingredient chloropyriphos (50%) + Cypermethrin (5%) were used in this experiment. In case of Imitaf, the lowest percent disease incidence (10.12% per plant and 3.51% per plot) and severity (7.21%) were recorded in four times spray (T₄) at 70 DAS. The highest percent disease incidence (36.50% per plant and 11.37% per plot) and severity (23.33%) were recorded in no spray (T₀) at 70 DAS. In case of ACmix, the lowest percent disease incidence (12.21% per plant and 4.21% per plot) and severity (7.53%) were recorded in four times spray (T₄) at 70 DAS. The highest percent disease incidence (36.49% per plant and 11.37% per plot) and severity (36.67%) was recorded in T₀ at 70 DAS. The highest number of flower, no of pod and yield was found in four times spray (T₄) that was higher in Imitaf than ACmix. The highest chlorophyll content was recorded in four times spray (T₄) for Imitaf (49.62 μmol·m^-2·s^-1) and ACmix (56.80 μmol·m^-2·s^-1), and the lowest chlorophyll content was recorded in T₀ for Imitaf (42.01 μmol·m^-2·s^-1) and ACmix (48.34 μmol·m^-2·s^-1). However from the results of this experiment it was revealed that Imitaf gave the better performance to control the insect vector (Whitefly) of MYMV with four times spray.
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Research topic(s) for pests/diseases/weeds:
control - general
transmission/dispersal of plant diseases

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Mungbean yellow mosaic virus	Cowpea and relatives (Vigna)	Bangladesh