Abstract

EVALUATION OF BIOAGENTS AND FUNGICIDES IN INTEGRATED MANAGEMENT OF DISEASES IN TURMERIC CURCUMA LONGA L.

C. Ruth*, K. Gopal and M. Ramakrishna

ABSTRACT

Turmeric Curcuma longa L. is an important spice and commercial crop, belong to family Zingiberaceae and a native of South Asia particularly India. The present investigation entitled integrated management of rhizome rot in turmeric Curcuma longa L. was undertaken during 2016-18 to find out the response of bio agents and fungicides in management of rhizome rot disease in turmeric crop. Experimental findings indicate that among 10 treatments with bioagents and fungicides, the treatment viz. rhizome treatment with Carbendazim 2g./kg rhizome followed by Rhizome treatment with Chirayu@ 50g/kg rhizome and soil application of Trichoderma harzianum @ 5kg/ha. enriched with neem cake and FYM at planting along with after receiving 2mm. rainfall, 1st spray with Carbendazim12%+ Mancozeb 63%WP (0.2%) + micronutrient (Rexonil) spray@ 0.2%, 2nd spray with Propiconozole @0.1% and 3rd spray with Tebuconazole 50% + Trifloxystrobin 25% W @0.5 g/L at 15 days interval was more effective in controlling rhizome rot, leaf spot and leaf blotch diseases. Lowest per cent disease incidence of rhizome rot (8.90) and lowest per cent disease index of leaf spot (18.58), lowest per cent disease index of leaf blotch (15.79) and highest fresh rhizome yield (36.85t/ha) was recorded and more cost benefit ratio 1:2.37 was recorded.

Keywords: IDM, turmeric, bioagents.