Journal of Entomological Research
SCOPUSWeb of Science
  • Year: 2018
  • Volume: 42
  • Issue: 4

Impact of weather parameters on the population dynamics of Cochlochila bullita (Stal), infesting Ocimum tenuiflorum L.

1OSD Language and Library, Department of Shiksha Sankul, Jaipur, 302 015, Rajasthan, India

Department of Zoology, University of Rajasthan, Jaipur-302 004, Rajasthan, India

*Corresponding author's E-mail: shrutisage@gmail.com

Online published on 11 January, 2019.

Abstract

Population dynamics of Cochlochila bullita in relation to weather parameters was studied under natural field conditions. Observations revealed that the incidence of tulsi lace bug reached to its peak in the week of September i.e., (standard week) with a mean of 30.6 tulsi lace bugs/plant and thereafter it decreased to its lowest during the end of October. The population of adult C. bullita were recorded significant positive correlation with maximum and minimum temperature (r = 0.66 and r = 0.59) and pan evaporation (r = 0.61) while with morning (r =-0.18), evening (r =-0.03), mean relative humidity (r =-0.09) and total rainfall (r =-0.08) was found to be negatively non significant. In totality the results indicated that weather parameters like temperature and pan evaporation were limiting factors for the population buildup of this pest.

Keywords

Cochlochila bullita, Ocimum tenuiflorum, weather parameters, peak population, pest