PNABD246.pdf

*0187 Thongmeearkom, P. ; Kittipakorn, K. ; Surin, P. 1981. Outbreak of
mungbean yellow mosaic disease in Thailand. THAI JOURNAL OF AGRICULTURAL
SCIENCE, v.14(2):201-206. [En] (A:PS)
A heavy outbreak of mungbean yellow mosaic virus on Vigna radiata occurred
in 1977 in northern Thailand. The epidemic was favored by unusually dry
conditions which allowed a population build-up of the vector, Bemisia tabaci,
as well as by an increase in the average cropped to mungbean following the
failure of the main corn crop. [EMS]
*0188 Ahmed, S.R. ; Gaur, R.B. 1982. Chemotherapeutic approach to check
yellow mosaic virus of moong (Phaseolus aureus L.). HINDUSTAN ANTIBIOTICS
BULLETIN, v.24(1/2):18-20. [En] [En Abstj (REP.MB-2653)
A combination of aureofungin (0.003Z) and phosphamidon (0.25 kg a.i./ha)
decreased incidence of mungbean yellow mosaic virus on mungbean and increased
yields. [THuj
*0189 Sharma, S.R. ; Varma, A. 1982. Control of yellow mosaic of mungbean
through insecticides and oils. JOURNAL OF ENTOMOLOGICAL RESEARCH,
v.6(2):130-136. [En] [En Abstj (REP.MB-2374)
Efficacy of 5 granular and emulsifiable insecticides, 4 mineral and
vegetable oils, and one combination of insecticide and oil was tested to check
the spread of mungbean yellow mosaic disease in different cultivars of mungbean
under field conditions. The incidence of yellow mosaic was less in summer
(April-June) than in the rainy (July-October) season in the cultivars tested.
Three cultivars, viz., RS-4, J-45 and T-51 were evaluated during summer, while
two more, B-105 and ML-lO, were included in a trial in the wet season. Of the
various treatments, aldicarb, phorate, disulfoton, and disulfoton + paraffin
oil were most effective in checking the spread of yellow mosaic, and
consequently increased the yield significantly. Efficacy of various chemicals
varied from cultivar to cultivar and season to season. Reduction in seed yield
due to infection depended on the time of infection. Maximum reduction in yield,
which varied from 69 to 78% depending on cultivar, was recorded when plants
were Infected up to two weeks after germination. [AS]
*0190 Verma, H.N. ; Kumar, V. 1982. Prevention of plant virus diseases by
Mirabilis jalapa leaf extract. NEW BOTANIST, v.7:87-91. [En] [En Abst]
(REP.MB-2732)
Foliar application or spray of Mirabilis jalapa (L.) leaf extract caused
marked suppression of disease symptoms, improved the growth and flowering and
considerably reduced the virus multiplication rate in the treated plants of
tomato against tomato yellow mottle (TMV-strain) and tomato yellow mosaic
viruses, cucumbers against cucumber mosaic and cucumber green mottle viruses,
and blackgram against mungbean yellow mosaic virus. The populations of aphids
and whiteflies present on treated plants were much lower as compared to control
plants. [AS/THHJ
*0191 Honda, Y. ; Iwaki, M. ; Salto, Y. ; Thongmeearkom, P. ; Kittisak, K.
48