Study on Spatial Distribution and Occurrence of Pink Boll Worm on Cotton
Kanjarla Rajashekar *
Department of Plant Protection, KVK, Adilabad, India.
Jampala Rajashekar
Department of Entomology, College of Agriculture, PJTSAU, Rajendranagar, Hyderabad-500030, India.
Sreedhar Chauhan
Agricultural College Adilabad, PJTSAU, India.
*Author to whom correspondence should be addressed.
Abstract
An investigation was carried out to “Study on spatial distribution and occurrence of pink boll worm on cotton” under Agricultural Research Station (ARS), Adilabad, Professor Jayashankar Telangana State Agricultural University during Kharif, 2018 and 2019. The main objective of this study was to determine distance and migration of pink boll worm adults from ginning mill to cropping area of different location through GIS tools and the results revealed that spatial distribution of pink bollworm was found to be low in the villages which are 15 kms away from the ginning mill i.e. pheromone catches (1515 and 1267) and PBW larvae/20 bolls (13.76 % and 15.00%) and villages which are 5kms away from the ginning mill was found to be high incidence i.e. pheromone catches (2185 and 1929) and PBW larvae/20 bolls (38.14 % and 28.10%) during Kharif 2018 and 2019, respectively.
Keywords: Kharif, pink boll worm, spatial distribution, ginning mills, migration, GIS tools, pheromone catches, PBW larvae