aim of the present study was to investigate the impact of seasonal variation
on life-fertility table of Oligonychus sapienticolus Gupta.
Methodology: Adult mite population were collected from infested
banana leaves and reared under laboratory condition. A cohort of 100 eggs
laid at a time by a population of 100 gravid females was considered for the
experiment. This cohort was used for constructing of age specific
life-fertility table. Seasonal impact on different life-fertility table
parameters were studied by using different formulas.
Results: The perusal of data showed that the net reproductive
rate, finite rate of increase and innate capacity for increase in number were
highest during summer months, but mean generation time, doubling time and
corrected generation time declined with increase in temperature.?? ???????????
Interpretation: The study concludes that this mite prefer
hot and dry climatic condition for better growth and development. So, during
this period appropriate management measures against this mite will avoid the
chances of yield loss of banana plantation. ???????
Life-fertility table, Oligonychus sapienticolus, Seasonal impact