A study on the seasonal distribution of spider fauna in the maize field at Raipur, Chhattisgarh region

Experiment was conducted at Entomology Block of agriculture research cum instructional farm, I.G.K.V., Raipur, Chhattisgarh in year 2014-2015 to study the seasonal incidence of spider of maize crop pests under Chhattisgarh plains. The study revealed that, the incidence of spider spp. The peak activity of spider spp (Oxyopidae sp., Araneidae sp., Amphinectidae sp. and Agelenidae sp.) was observed during the fourth week of September which was associated with 33.4 0C maximum temperature, 24.0 0C minimum temperature, 93% morning R.H., 57% evening R.H., 2.1Km/h wind velocity and Sunshine hours of 8.3 lux. The spider population showed non-significant positive correlation with maximum temperature (r = 0.074), minimum temperature (r = 0.28) morning relative humidity (r = 0.27) and evening relative humidity (r = 0.15). However, rain fall (r = - 0.20), wind velocity (r = - 0.39) and sun shine hours (r = - 0.14) showed non-significant negative correlation with spider population.