Browsing by Author "Chalapathi Rao, N.B.V."
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Item Biological suppression of coconut black headed caterpillar Opisina arenosella outbreak in East Godavari district of Andhra Pradesh - eco friendly technology(2018) Chalapathi Rao, N.B.V.; Nischala, A.; Ramanandam, G.; Maheswarappa, H.P.Item Damage by coconut defoliator, Phalacra vidhisara Walker (Drepanidae: Lepidoptera)(2015) Maheswarappa, H.P.; Srinivasan, T.; Chitra, N.; Chalapathi Rao, N.B.V.Item Effect of integrated nutrient management in coconut on eriophyid mite, Aceria guerreronis in different agroclimatic regions(2018) Srinivasan, T.; Chalapathi Rao, N.B.V.; Gurav, S.S.; Chandrika Mohan; Maheswarappa, H.P.Item Enjoying coconut free from insect pest infestation(2014) Chalapathi Rao, N.B.V.; Srinivasan, T.; Gurav, S.S.; Rajamanickam, K.; Maheswarappa, H.P.Item Field evaluation of two pheromones lures against red weevil,(Rhynchophorus Ferrugineus Oliv.) in coconut gardens in Andrapradesh(2006) Sujatha, A.; Chalapathi Rao, N.B.V.; Rao, D.V.R.Item Hot spot areas of coconut slug caterpillar and its integrated management in Andhra Pradesh(2019-02) Chalapathi Rao, N.B.V.; Rakshith Roshan, D.; Ramanandam, G.; Maheswarappa, H.P.Item Impact of Innundative Releases of Bio Agents in the Management of Coconut Black Headed Caterpillar Opisina arenosella in Andhra Pradesh under Out Break Conditions(2018) Chalapathi Rao, N.B.V.; Snehalatharani, A.; Emmanuel, N.; Ramanandam, G.; Maheswarappa, H.P.Item Impact of olfactory conditioned parasitoid Goniozus nephantidis (Musebeck) in suppression of Opisina arenosella Walker under field conditions in east coast of Andhra Pradesh(2013-12) Chalapathi Rao, N.B.V.; Emmanuel, N.; Subaharan, K.Item Management of coconut slug caterpillar (Macroplectra nararia) with light traps(2016) Chalapathi Rao, N.B.V.; Snehalatharani, A.; Ramanandam, G.; Maheswarappa, H.P.Item Management of rhinoceros beetle (Oryctes rhinoceros L.) by biological suppression with Oryctes baculovirus in Andhra Pradesh(2018) Chalapathi Rao, N.B.V.; Snehalatharani, A.; Nischala, A.; Ramanandam, G.; Maheswarappa, H.P.Item NEW RECORD OF DEFOLIATOR PESTS OF COCOA IN GODAVARI DISTRICTS OF ANDHRA PRADESH AND THEIR MANAGEMENT(2011) Emmanuel, N.; Chalapathi Rao, N.B.V.; Gautam, B.Item Occurrence of leaf blight - a new concern to coconut plantations in Andhra Pradesh(2020-08) Neeraja, B.; Chalapathi Rao, N.B.V.; Bhagavan, B.V.K.Item Performance of coconut based high density multispecies cropping system under East Godavari district of Andhra Pradesh(2016) Padma, E.; Ramanandam, G.; Ravindra Kumar, K.; Chalapathi Rao, N.B.V.; Maheswarappa, H.P.A trial was conducted at Horticultural Research Station, Ambajipeta during 2008-12 with cocoa, banana, pineapple, elephant foot yam and Heliconia as intercrops in coconut. The mean data of four years revealed that nut yield recorded in coconut under cropping system was117.3 per palm, whereas under monocrop, it was 96.5 nuts per palm .With respect to intercrops, cocoa recorded yield of2.0 kg dry beans/tree, banana 22.7 kg/plant, pineapple 0.9 kg/plant, elephant foot yam yielded corm of weight 2.8 kg/plant and Heliconia 12 spikes/plant. With respect to biomass production, a total quantity of 34.5 tlha/year on fresh weight basis collected from the bio-system (7.6 tonnes fi·om coconut,15.0 tonnes from cocoa,6.0 tonnes fi·om banana, 3.6 tonnes from Pineapple, 1.3 tonnes fi·om elephant foot yam and 1.0 ton from heliconia) which was used for production ofvermicompost. The total quantity ofvermicompost obtained was 20.11 tlha/ yr with vermicompost recovery of 58%. There was an increase in the soil organic matter content from 0.99 % to 1.2 %, soil organic carbon content from 0.5% to 0.7%, nitrogen from 288 kglha to 344 kglha, phosphorus fi·om 20.5 kg/ha to 24.5 kglha and potassium from 123.76 kg/ha to 138.14 kglha with coconut based cropping system. The microbial population of bacteria, actinomycetes, trichoderma, phosphorus solubilising bacteria (PSB) count was high in the coconut based cropping system. The economic analysis revealed that the highest net returns were registered in coconut based cropping system compared to coconut monocrop.Item Performance of coconut-based high density multispecies cropping system under East Godavari Dist. of Andhra Pradesh(2016) Padma, E.; Ramanandam, G.; Ravindra Kumar, K.; Chalapathi Rao, N.B.V.; Maheswarappa, H.P.Atrial was conducted at Horticultural Research Station, Ambajipeta during 2008-12 with cocoa, banana, pineapple, elephant foot yam and heliconia as intercrops in coconut. The mean data of four years revealed that nut yield recorded in coconut under cropping system was117.3 per palm whereas under monocrop it was 96.5 nuts per palm .With respect to intercrops, cocoa recorded yield of 2.0 kg dry beans/tree, banana 22.7 kg/plant, pineapple 0.9 kg/plant, elephant foot yam yielded corm of weight 2.8 kg/plant and Heliconia 12 spikes/plant. With respect to biomass production, a total quantity of 34.5 t/ha/year on fresh weight basis collected from the bio-system (7.6 tonnes from coconut,15.0 tonnes from cocoa ,6.0 tonnes from banana , 3.6 tonnes from Pineapple, 1.3 tonnes from elephant foot yam and 1.0 ton from heliconia) which was used for production of vermicompost. The total quantity of vermicompost obtained was 20.11 t/ha/yr with vermicompost recovery of 58 %. There was an increase in the soil organic matter content from 0.99 % to 1.2 %, soil organic carbon content from 0.5 % to 0.7 % , nitrogen from 288 kg/ha to 344 kg/ha, phosphorus from 20.5 kg/ha to 24.5 kg/ha and potassium from 123.76 kg/ha to 138.14 kg/ha with coconut-based cropping system. The microbial population of bacteria, actinomycetes, Trichoderma, Phosphorus solubilising bacteria (PSB) count was high in the coconut based cropping system. Earthworm count and soil moisture were also higher in coconut based cropping system whereas soil temperatures were found lower in coconut based cropping system compared to monocrop. The economic analysis revealed that the highest net returns were registered in coconut based cropping system compared to coconut monocrop.Item Studies on the impact of mite infestation on nut characters and oil content in coconut variety, East Coast Tall(2006) Sujatha, A.; Naresh Kumar, S.; Chalapathi Rao, N.B.V.