ROLE OF ORGANICS AND INDIGENOUS COMPONENTS AGAINST Spodoptera litura (Fab.) IN GROUNDNUT AND SOYBEAN
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Date
2006-12-30
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University of Agricultural Sciences GKVK, Banglore
Abstract
Role of organics and Indigenous components for the management of Spodoptera litura
(F.) in groundnut and soybean ecosystem were studied during 2003-04 at Main Agriculture
Research Station, UAS, Dharwad. In groundnut ecosystem, organic treatment recorded
significantly less number of aphids (8.55/cm twig), thrips (3.57/leaflet), leaf hoppers
(1.72/sweep) and S. iitura (2.40 / m.row) compared to integrated nutrient management and
inorganic treatment. Similarly in soybean ecosystem also significantly less number of thrips
(4.40/leaflet), leaf hoppers (2.90/sweep), S. litura (3.12/m.row) and T. orchalcea (1.88/m.row)
were observed in organic treatment compared to INM and RPP. Organically treated groundnut
spared the predators by recording significantly higher number of coccinellid beetles
(3.71/plant) followed by INM (2.61/plant) and RPP (1.50/plant). Syrphids population
(1.11 maggot / m.row) and N. rileyi incidence (1.09 mycosed/ m. row) was found significantly
higher in organic treatment. Whereas, statistically at par in INM and RPP.
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