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Vol. 11, Special Issue 3 (2022)

Population dynamics of rugose spiralling whitefly, Aleurodicus rugioperculatus (Martin) on coconut

Author(s):
Chavan SS, Narangalkar AL and Sapkal SD
Abstract:
An experiment entitled ‘Population dynamics of rugose spiralling whitefly, Aleurodicus rugioperculatus (Martin) on coconut’ were conducted on the coconut orchard at Nursery No. 4, Department of Horticulture, College of Horticulture, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli during the period of one year starting from December 2018 to December 2019. The population of rugose spiralling whitefly (RSW) recorded throughout the year on coconut palm but the density of total population varied from 4.24 to 102.87 adults per frond per palm in different SMW. The observations on the pest population were started from 50th SMW (10th Dec. to 16th Dec.) which recorded 34.31 RSW per frond per palm which reached its peak i.e., 102.87 RSW per frond per palm during 15th SMW (9th April. to 15th April) and remained more or less stable till 21st SMW (21st May to 27th May). Correlation of pest incidence and weather parameters revealed that the population of RSW had a positively highly significant correlation with maximum temperature, bright sunshine hours and evaporation and recorded as r = 0.574**, 0.473** and 0.708**, respectively. In the multiple regression study, R2 value indicated that weather parameters contributed to 56.0 per cent of the total variation in the population of RSW on coconut.
Pages: 864-867  |  470 Views  237 Downloads
How to cite this article:
Chavan SS, Narangalkar AL and Sapkal SD. Population dynamics of rugose spiralling whitefly, Aleurodicus rugioperculatus (Martin) on coconut. The Pharma Innovation Journal. 2022; 11(3S): 864-867.

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