Vol. 4, Issue 2 (2016)
Assessment of linear relationship between citrus psylla (Diaphorina citri Kuw.) with weather parameters in Nagpur Mandarin
Author(s): PN Dawane, UP Barkhade and PR Panchbhai
Abstract: The present investigation entitled, “Assessment of linear relationship between citrus psylla (Diaphorina citri Kuw.) with weather parameters in Nagpur Mandarin” was conducted during Ambia bahar of 2010-11. Eight-year-old Nagpur mandarin orchard selected for imposing treatments was, planted at spacing of 6.0 m X 6.0 m at Futala farm, College of Agriculture, Nagpur. Present investigation had components like studies on correlation citrus psylla (Diaphorina citri Kuw.) nymphs and adults with weather parameters during 2010-11. Simple linear correlation values for seasonal incidence of citrus psylla nymphs with weather parameters during 2010-11 (Table-1) revealed significantly positive correlation of maximum temperature (p = 0.01) and minimum temperature (p = 0.01) whereas, morning and evening relative humidity were negatively correlated in significant manner (p = 0.05). Evaporation was related in positively significant manner (p = 0.01). The correlation of seasonal incidence of citrus psylla adults with weather parameters revealed correlation of minimum temperature in significant manner (p = 0.01) whereas, other parameters did not have significant correlation trend. Weather data during 2010-11 was obtained from Meteorological observatory in College of Agriculture, Nagpur, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. It was mostly associated with the flushing cycle indicating the preference of the pest for new flush. Citrus psylla prefers warm conditions with lower humidity regime which is evident from population rise in month of February and March.
Pages: 119-121 | 144 Views Downloads
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How to cite this article:
PN Dawane, UP Barkhade, PR Panchbhai. Assessment of linear relationship between citrus psylla (Diaphorina citri Kuw.) with weather parameters in Nagpur Mandarin. Int J Chem Stud 2016;4(2):119-121.
