author(s)
K Swathi, P Seetha Ramu, S Dhurua, M Suresh and S Govinda Rao

abstract
Studies were undertaken at Agriculture College Naira, during rabi, 2017-2018 to assess the influence of weather parameters on the occurrence of natural enemies fauna in rice fallow blackgram. The incidence of the coccinellid predator (Cheilomenes sexmaculata) and spiders (Oxyopes javanus) were observed on the insect pests of blackgram. The populations of natural enemies were recorded at regular weekly intervals along with pest complex population, and correlated with the corresponding meteorological data to understand the relationship between them during the season. The incidence of natural enemies initiated during 50^th standard week i.e., 12 days after sowing and reached the peak at 6^th standard week i.e., 60 days after sowing. The co-efficient of determination (R²) for coccinellids was 0.682, which showed that the abiotic factors were able to explain the variation in the population of coccinellids to the extent of 68.2 out of 100. The coefficient of determination (R²) for spiders was 0.570 which shows that the abiotic factors were able to explain the variation in the population of spiders to the extent of 57.0 out of 100.