Pests status of coconut in managed and unmanaged garden
Keywords:
Coconut, rhinoceros beetle, red palm weevil, Eriophyid mite, black headed caterpillarAbstract
The major pests incidence and intensity on coconut was recorded during fixed plot survey. It was carried out at bimonthly interval from April, 2018 to February, 2019 at Regional Research Station, Bhatye, Ratnagiri jurisdiction. Two plots were selected for observations, one was well managed (good sanitation, use of fertilizes, etc.) and another unmanaged (poor sanitation, no use of fertilizers). The major pest status in managed garden was minimum which recorded rhinoceros beetle (25.73%), eriophyid mite (41.74%) and mite grade index 0.71. Whereas, maximum infestation of rhinoceros beetle, red palm weevil and eriophyide mite were observed to be 30.31, 0.37, 71.70 per cent, respectively and mite grade index was 1.57 (moderate) in unmanaged garden. The average data of two fixed plots revealed that the incidence of rhinoceros beetle was in the range of 7.64 to 48.00 per cent and maximum infestation was observed in the month of June, 2018 (48.00%), and minimum incidence was observed in February, 2019 (7.64 %). The infestation of red palm weevil and black headed caterpillar were 1.11 and 0.64 per cent only in February, 2019. The infestation of eriophyid mite was in the range of 41.65 to 64.98 per cent and maximum infestation (64.98%) was noticed in the month of April, 2018 and least incidence was observed in October, 2018 (41.65%). The mite damage grade index 1.39 (moderate) was recorded in February, 2019. However, lowest MGI (0.67) was observed in October, 2018.
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REFERENCES
Bedford, O. 1975. Trap catches of the coconut rhinoceros beetle, Oryctes monoceros (L) (Coleoptera, Scarabaeidae, Dynastinae) in New Britain. Bull. Entomological Research, 65: 443-451.
Levin, Lily and Mammooty, K.P. 2003. Incidence of coconut eriophyid mite Aceria guerreronis keifer (eriophyidae: acari) in different coconut cultivars and hybrids. Journal of Tropical Agriculture, 41: 59-62.
Alagar, M., Srinivasan, T. and Maheshwarappa, H.P. 2019. Integrated management of coconut eriophyid mite, Aceria guerreronis Keifer (Eriophyidae: Acari). 23rd Plantation Crops Symposium, 6-8 March, 2019, Book Abstracts, ABS. p.6, 105.
Mathen, K. and Kurian, C. 1962. Comparative efficacy of different insecticides on Rhynchophorus ferrugineus F. In: Proceedings of the First Conference of Coconut Research Workers in India 1959 - Indian Central Coconut Committee, Emakuam. p. 464.
Mohanasundaram, M., Kalyanasundaram, S.K., Somasundaram, O.V.R. and Mahaendran, R. 1999. Management and control measure for the coconut eriophyid mite Aceria guerreronis Keifer (Eriophyidae: Acari) in Tamil Nadu. Indian Coconat Journal, 29: 8-10.
Muyengi, Z.E., Msuya, E. and Lazaro, E. 2015. Assessment of factors affecting coconut production in Tanzania. Journal of Agricultural Economics and Development, 4: 83-94.
Chalapathi Rao, N.B.V., Snehalatharani, A., Nischala, A., Ramanandam, G. and Maheswarappa, H.P. 2018. Management of rhinoceros beetle (Oryctes rhinoceros L.) by biological suppression with Oryctes baculovirus in Andhra Pradesh. Journal of Plantation Crops, 46: 124-127.
Paul, W.D. 1985. Study on integrated pest management (Col.: Scarab. Dynastinae). Ph.D. Thesis, FU, Berlin.
Gurav, S.S., Radadia, G.G. and Shinde, C.U. 2018. Status of coconut black headed caterpillar, Opisina arenosella (Walker) and it’s associated larval parasitoid, Goniozus nephantidis (Muesebeck) under south Gujarat conditions. International Journal of Chemical Studies, 6: 2713-2718.
Sathiamma, B., Nair, C.P.R and Koshy, P.K. 1998. Out break of nut infesting eriophyid mite Eriophyes guerreronis (K) in coconut plantation in India. Indian Coconat Journal, 29:1-3.
Seguni, Z., Nyange, V., Materu, C., Mwingira, G. and Mruma, B. 2010. Pest control research. In: Twenty Five Years of Coconut Research for Development in Tanzania. pp. 78-96.
Desai, V.S., Desai, S.D., Mayekar, A J. and More, V.G. 2009. Infestation of coconut eriophyid mite, Aceria guerreronis, Keifer in Konkan region of Maharashtra. The Journal of Plant Protection Sciences, 1: 76-79.
Vander Plank, F.L. 1959. Studies on the coconut pest Pseudotheraptus wayi Brown (Coroidae) in Zanzibar. Some data on the yield of coconut in relation to damage caused by the insect. Bulletin of Entomological Research, 50: 135-149.
