M. Variar et al., EFFICACY OF COMBINATION OF FUNGICIDE FORMULATIONS ON MANAGEMENT OF RICE-BLAST (PYRICULARIA-ORYZAE) IN RAIN-FED UPLAND, Indian Journal of Agricultural Sciences, 63(6), 1993, pp. 386-389
Efficacy of 3 fungicides for management of rice-blast (Pyricularia ory
zae Cav.) was tested on 2 varieties of rice (Oryza sativa L.) in rainf
ed favourable uplands of Bihar plateau during wet (July-October) seaso
ns of 1989 and 1990. The fungicides were tricyclazole (Beam 75 WP), IB
P [O, O-diisopropyl-S-benzyl thiophosphate (Kitazin 17 G)] and ediphen
phos (Hinosan 50 EC) and the varieties were 'IR 50' and 'HR 12' (both
susceptible to blast). Application of IBP granule @ 25 kg/ha at 40 day
s after sowing supplemented with a spray of ediphenphos @ 1 litre/ha a
t booting stage recorded significantly low disease score and maximum g
rain yield. Seed treatment with tricyclazole @ 4 g/kg seed supplemente
d with IBP @ 25 kg/ha at 40 days after sowing proved equally effective
.