Impact of weather parameters on population dynamics of soil borne insect pests infesting oats (Avena sativa L.) in North Kashmir
Ritesh Kumar, Ishtiyaq Ahad, Sheikh Aafreen Rehman and Stanzin Dorjey
The present experiment was carried out in the field at the Faculty of Agriculture, Wadura, North Kashmir during 2015-16. Various adult and larval populations’ viz. white grubs (Holotrichia longipennis, Brahmina spp, Melolntha furcicauda and Oryctes spp), wireworm (Agriotes spp) and cutworm (Agrotis spp) were observed at the experimental site. Among these pests H. longipennis populations were found to be the dominating one. Correlation studies depicted that, white grub larvae and adult showed highly significant positive correlation with temperature(r =0.89, 0.93), (r =0.86, 0.91) and sunshine (r =0.65, 0.64). Wire worm larvae and adult were positively correlated with temperature(r =0.47, 0.61), (r =0.87, 0.87) and sunshine (hrs.); however larvae and adult showed highly significant negative correlation with relative humidity. Larvae showed highly significant positive correlation with rainfall and adult resulted non-significant negative correlation with rainfall. On the other hand cut worm larvae and adults showed highly significant positive correlation with temperature(r =0.67, 0.62), (r =0.78, 0.86) and sunshine (hrs.).
Ritesh Kumar, Ishtiyaq Ahad, Sheikh Aafreen Rehman, Stanzin Dorjey. Impact of weather parameters on population dynamics of soil borne insect pests infesting oats (Avena sativa L.) in North Kashmir. J Entomol Zool Stud 2018;6(3):533-537.