Browsing by Author "Radhakrishnan Nair, C.P."
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Item Annotated Bibliography of coconut in India 1977-1990(1991) Kamalavijayan, D.; Radhakrishnan Nair, C.P.; Chempakam, B.; Govindankutty, M.P.; Das, P.K.Item Arecanut research and development(CPCRI, 1985) Shama Bhat, K.; Radhakrishnan Nair, C.P.Item Arecanut: Research and development(2007-02-08) Shama Bhat, K.; Radhakrishnan Nair, C.P.Item Bio-ecological studies on cacao mealy bug, Planococcus lilacinus Ckll.(2007) Radhakrishnan Nair, C.P.; Nair, M.R.G.K.The biology, seasonal abundance, nature and spread of infestation, association with ants, and nature of damage caused by the cacao mealy bug Planacoccus lilacinus Ckll. (Homoptera: Pseudococddae) were studied. Life cycle of the female mealy bug was completed in 20 to 25 days and of male in 17 to 20 days. The peak period of infestation occurred during summer months, and with the onset of rains the population declined. There was significant positive correlation between temperature and pest incidence, and significant negative correlation between pest incidence and rainfall and relative humidity. The pest caused wilting of cherelles to an extent of 85.35 per cent, abortion of cushions, and stunted growth of seedlings. A new strategy for the control of the pest has been suggested.Item Biological suppression of coconut pests(1999-05) Sathiamma, B.; Chandrika Mohan; Murali Gopal; Abraham, V.A.; Radhakrishnan Nair, C.P.Item Biology and bionomics of insect pests of cinnamon(2007-02-08) Vijay Singh; Dubey, O.P.; Radhakrishnan Nair, C.P.; Pillai, G.B.The major pests affecting cinnamon include Chilasa clytie L., Sorolopha archimedias Meyr., Acrocercops sp. near telestis Meyr., Popillia complanata Newm., and Singhala helleri Ohs. The minor pests are Sauris sp., Ceroplastes rubens Mask., Apoderus scitulus Walker, and Oecophylla smaragdina F. The nature and extent of damage and biology and seasonal abundance of these pests are discussed.Item Biology and bionomics of insects pests of cinnamon(1978-06) Vijay Singh; Dubey, O.P.; Radhakrishnan Nair, C.P.; Pillai, G.B.Item Biology of Metanastria hyrtaca Cram., A defoliator of cashew(2007) Radhakrishnan Nair, C.P.; Abraham, V.A.; Pillai, G.B.Item Biology of Udaspes folus Cram.(Lepidoptera: hesperiidae), the leaf roller pest of turmeric and ginger(1975) Abraham, V.A.; Pillai, G.B.; Radhakrishnan Nair, C.P.Biology of. Udaspes flous Cram. the leaf roller pest of turmeric and ginger was studied under laboratory conditions The average duration from egg to adult was 28 -6 days in ginger and 25 -1 • days in turmeric. Longevity of adults was 4 days in males and 6 -7 days in females. The maximum number of eggs laid was 50, The collateral hosts of the pest are also listed.Item Brown Rot of Turmeric(1974) Sarma, Y.R.; Nambiar, K.K.N.; Radhakrishnan Nair, C.P.Item Caterpillar and beetle pests of cocoa (Theobroma cacao L.) in India(2007-02-08) Prem Kumar, T.; Radhakrishnan Nair, C.P.Item Chemical control of palm mite Raoiella indica Hirst on arecanut(2007-02-08) Devasahayam, S.; Radhakrishnan Nair, C.P.The palm mite, Raoiella indica Hirst is a common and widespread pest of arecanut in India attaining serious proportions especially during the hot summer months. A field trial was conducted at Central Plantation Crops Research Institute, Regional Station, Vittal, Karnataka to evaluate the efficacy of four pesticides viz., dicofol. dimethoate, formothion and phosphamidon at 0.05% and 0.025% concentration in controlling the population of the pest. It was found that dicofol 0.05%. dimethoata 005Yo and 0.025%, formothion 0.05% and phosphamidon 0-05% gave significant control of the mite population.Item A comparative study on the efficacy of pheromone lures in trapping red palm weevil, Rhynchophorus ferrugineus Oliv. (Coleoptera : Curculionidae) in coconut gardens(2007-02-08) Abraham, V.A.; Saritha S. Nair; Radhakrishnan Nair, C.P.A field trial was conducted to assess the efficiency of different pheromone lures in trapping coconut red palm weevil, Rhynchophorus ferrugineus Oliv. The results revealed that two formulations of AgriSense, UK, viz. RF 078B210L189A and RF 078A210L189C and Chem Tica formulation ferrolure + were equally effective in trapping the weevil. Because of the visibility of the pheromone in the sachet the monitoring for replacement of the empty lure by the user was possible with Chem Tica ferrolure + and this is an added advantage. It is also found that effective weevil trapping is possible only if pheromone is used along with the food bait.Item Control of Radopholus similis (Cobb, 1893) Thorne, 1949 in coconut nursery(2007-02-08) Koshy, P.K.; Radhakrishnan Nair, C.P.Item Control of the coconut pest Oryctes rhinoceros L.using the Oryctes virus(2007-02-08) Murali Gopal; Alka Gupta; Sathiamma, B.; Radhakrishnan Nair, C.P.The coconut palm is an important plantation crop in India, where it is cultivated on 1.796 million hectares. The rhinoceros beetle, Oryctes rhinoceros L. (Coleoptera: Scarabaeidae) is a serious pest of coconut throughout India and southeast Asia, causing an estimated 10% yield loss in the crop. Successful biological control of this pest could be achieved using the non-occluded Oryctes virus (syn. Baculovirus oryctes or Oryctes bacidovirus). This review provides an account of this microbial agent, its biology, effects and impact, production and maintenance and alternative hosts, particularly in the context of the Indian situation. It also proposes future areas for investigation on the virus, in order to achieve its commercial viability and more widespread use.Item Deputation to Attend Dissemination Workshop on Coconut IPM at Colombo, Sri Lanka.(2006) Radhakrishnan Nair, C.P.Item Deputation to Colombo, Sri Lanka.(2005) Radhakrishnan Nair, C.P.Item Deputation to Indonesian Centre for Estate Crops Research and Development, Bogor, Indonesia.(2004) Radhakrishnan Nair, C.P.Item Description of the salivary gland of the lace bug: Stephanitis typica (Distant)(2007) Mathen, K.; Rajan, P.; Radhakrishnan Nair, C.P.Item Description of the salivary gland of the lace bug: Stephanitis typica (Distant)(2007-02-08) Mathen, K.; Rajan, P.; Radhakrishnan Nair, C.P.
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