Browsing by Author "Bhavishya"
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Item A new pod bioassay method to determine the toxicity of insecticides against Tea mosquito bug, Helopeltis theivora(2024) T. N. Madhu; Saneera, E.K; R. Thava Prakasha Pandian; Sujithra, M; Bhavishya; Nagaraja, N.R.; Elain Apshara, S.; Josephrajkumar, A.; Rajesh, M.KItem BORDEAUX MIXTURE - A UNIVERSAL BLEND FOR Phytophthora MANAGEMENT IN ARECANUT(2020) Thava Prakasa Pandian, R.; Shivaji Hausrao Thube; Chaithra, M.; Nagaraja, N.R.; Bhavishya; Ganesh N. Khadke; Jose, C.T.Item AN EMERGING PEST IN ARECANUT : PENTATOMID BUG,Halyomorpha picus(2020) Shivaji Hausrao Thube; Saneera, E.K; Pandian, R.T.P.; M. Chaithra; Nagaraja, N.R.; Priya, U.K; BhavishyaItem Good Agricultural Practices in Arecanut Cultivation(2025-01-01) Bhavishya; Ravi Bhat; Sujatha, S.; Rajesh, M.K.; Nagaraja, N.R.; Thava Prakasa Pandian, R.; T. N. MadhuItem Harvesting and processing(2016) Elain Apshara, S.; BhavishyaItem Major storage insect pests of Arecanut Areca catechu L.: A Survey(2017) Shivaji Hausrao Thube; RTP Pandian; Bhavishya; Saneera, E.K; Chandrika Mohan; Nagaraja, N.R.Item Micronutrient management in arecanut-cocoa ecosystem(2021) Bhavishya; H. Nayana; Priya, U.K; Sujatha, S.; Ravi BhatItem Nano-potassium intercalated composted coir pith: A slow-release fertilizer suitable for laterite soils of humid tropics of India(2024) Bhavishya; Kizhaeral Sevathapandian Subramanian; Murali Gopal; Ravi Bhat; Swapna Shanmukan Nair; Malavika Radhakrishnan; Rajesh, M.K.High potassium (K)-demanding plantation crops are grown in laterite soils of the humid tropics of India; these soils generally contain low to medium K content. Nano-fertilizers offer an excellent alternative to conventional fertilizers as they release nutrients slowly for a longer period, enhancing their use efficiency. In this study, nano-zeolite based K fertilizer (NZK) was synthesized and intercalated into raw coir pith (CNZK) and composted coir pith (CCNZK). These were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), and UV–visible spectroscopy, and the intercalation of NZK was confirmed. The K content in CNZK and CCNZK was estimated to be 27.2% and 31.6%, respectively. Desorption studies indicated that nano-potassium fertilizer alone, and when intercalated into the composted coir pith, was found to release K slowly for a longer period (>480 h) in the laterite soils. Our study suggests that nano-potassium intercalated composted coir pith can be synthesized for slow release of K in the laterite soils of the humid tropics of India.Item New ooccurrence of the Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) infestation on cocoa in India.(2023) Madhu, T.N.; Thava Prakasa Pandian, R; Elain Apshara, S.; Bhavishya; Josephrajkumar, A.; Nirmal Kumar, B.J.; P. Santhosh KumarSpodoptera litura (Fabricius) (Lepidoptera: Noctuidae) is a highly polyphagous insect pest, which inflicts serious economic damage on many agricultural and horticultural crops globally. During our recent surveillance surveys, an unusual defoliation was noticed by a caterpillar pest on cocoa saplings at ICAR - Central Plantation Crops Research Institute, Regional Station, Vittal farm, Karnataka, India. Morphological identification and molecular characterization using mitochondrial cytochrome-c-oxidase (COI) gene confirmed the collected insect samples as S. litura. Hitherto, this species was only known to infest Leucaena leucocephala (CABI), a shade tree of cocoa plantations in Indonesia. To the best of our knowledge, this is the first record of infestation by tobacco cut worm on cocoa in India. Consequently, solarization of rooting medium has been suggested for the destruction of the quiescent pupal stage.Item Nutrient management for sustained productivity of Arecanut(2016) Ravi Bhat; Sujatha, S; Bhavishya; Karthika, K.SItem Production systems and canopy architecture(2016) Elain Apshara, S.; Bhavishya; Karthika, K.S.Item Xylosandrus crassiusculus (Motschulsky) (Coleoptera: Curculionidae) and Its Fungal Symbiont Ambrosiella roeperi Associated with Arecanut Kernel Decay in Karnataka, India(2022) Shivaji Hausrao Thube; Thavaprakaash. N; Bhavishya; Merin Babu; Josephrajkumar, A.; Muddumadiah Chaithra; Vinayaka Hegde; Enrico RuzzierXylosandrus crassiusculus (Coleoptera: Curculionidae: Scolytinae) is reported causing damage to areca palm plantations (Areca catechu L.—Arecaceae) in Karnataka (India). In particular, X. crassiusculus has been observed attacking and successfully reproducing on areca nuts; besides the new host plant record, the data provided here represent the first documented case of spermatophagy for this xyleborine beetle. All infestation symptoms of this polyphagous pest were documented and illustrated. The identity of the scolytid, besides morphologically, was confirmed by its DNA barcoding. Eggs, larvae and pupae were found within the galleries of infested kernels. All galleries of the infested kernels were characterized by the presence of whitish to greyish fungal growth. The fungus was identified as Ambrosiella roeperi, a known symbiont of Xylosandrus crassiusculus. Incidence of this symbiotic insect-fungus complex in the economic part of arecanut, i.e., the kernel, is of serious concern. In a climate change scenario, this beetle with fungal symbionts may pose a serious threat to arecanut production in India and elsewhere.Item Xylosandrus crassiusculus (Motschulsky) on Cocoa Pods (Theobroma cacao L.): Matter of Bugs and Fungi(2022) Shivaji Hausrao Thube; R. Thava Prakasa Pandian; Josephrajkumar, A.; Bhavishya; Nirmal Kumar, B.J.; Dnyaneshwar M. Firake; Vivek Shah; T. N. Madhu; Enrico Ruzzier