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VOL. 8, ISSUE 1 (2026)
Management of leaf spot disease of turmeric
Authors
D K Debata
Abstract
Turmeric (Curcuma longa) is one of the most important commercial
spice crops cultivated in Odisha state. Roma, Suroma, Ranga, Lakdong and Rasmi varieties
of turmeric which has sought its place in global spice market due to high
curcumin content (5-7%) of its rhizomes. The leaf spot disease caused by Colletotrichum
spp. is considered as a major constraint of turmeric cultivation. Therefore,
with an aim to organically manage the leaf spot disease, eco-friendly disease
management practice was carried out at RRTTS (Regional Research Technology
Transfer Station), G. Udayagiri, Kandhamal, OUAT (Odisha University of
Agriulture and Technology). The causal agent was isolated and characterized
through cultural, morphological and microscopical studies and proved the Koch
postulate. In the field experiment,T1-seed treatment with T. viride@5gm/kg
seed & P. fluorescens @10gkg-1 seed, T2- application of
4kg T. viride & P. fluorescens bio-agent to soil in 10 qtls FYM
incubated in 30% humidity for 15 days under shelter and application during
earthing up, T3-soil application 4 kg bio-agent T. viride & P.
flurescens incubated in neem cake - cow dung mixture @ 1.5qha-1
incubated in 30% humidity for 5 days under shelter and applied during earthing
up, T4- seed treatment T. viride @5gkg-1 seed & P.
fluorescens @10gkg-1seed+soil application 4kg bio-agent T.
viride & P. flurescens in 10qts FYM incubated in 30% humidity
for 15 days under shelter and application during earthing up, T5-seed treatment
with T. viride @5gkg-1 seed & P. fluorescens@10gkg-1
seed + soil application 4kg bio –agents T. viride & P. flurescens
in 10qts of FYM incubated at 30% humidity for 15 days under shelter and
applied during earthing up, T6-Seed fungicide treatment with Propiconazole @0.1%
+ foliar spray with propiconazole (0.1%) at 45 and 60DAP for treatment of
turmeric leaf spot.T7-Control Recommended NPK + FYM 5t/ha+ Sal leaves 6tha-1
in each treatment. It was found that Seed treatment with T. viride @5gkg-1
of seed & P. fluorescens @10gkg-1 of seed+ soil
application of 4kg bio-agents of T. viride & P. flurescens in
in incubated neem cake -cowdung mixture @ 1.5qha-1 incubated in 30%
moisture for 5days under shed and apply during earthing up can able to manage the
disease up to 64%.
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Pages:243-246
How to cite this article:
D K Debata "Management of leaf spot disease of turmeric". International Journal of Agriculture and Plant Science, Vol 8, Issue 1, 2026, Pages 243-246
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