Vol. 10, Issue 8 (2021)

Author(s):
Bindhu KG, Yenjerappa ST, Ajithkumar K, Gururaj Sunkad, Sreenivas AG and Mahadevaswamy

Abstract:
Dry root rot is an emerging and one of the most destructive constraint for pigeonpea production. As the disease is more prevalent with hot climate at 30 to 35 °C temperature (Taya et al., 1988). Low soil moisture conditions in Northern eastern Karnataka. To, calibrate the incidence and spread of the disease, a roving survey was taken up during the cropping season of 2017, 2018 & 2019 at prefixed plots. Four major pigeonpea growing districts such as Raichur, Kalaburgi, Yadgir and Bidar were chosen to evaluate the status of incidence and severity. Geo tagging viz., longitude latitude was taken up from each taluk three to five villages were selected randomly for survey. Results indicated that, During 2017-18 & 2018-19 maximum incidence of dry root rot was observed in Sultanpura village of Raichur district with the incidence of 17.2% & 28% respectively. Followed by Shirasagi village of Kalaburagi district with the record of 16.5% & 27.3%. Least dry root rot incidence of was observed in Mirjapur & Hippagar villages of Bidar district with the incidence of 8.6% & 11.00% respectively. During the Kharif 2019-20 recorded highest incidence of 17.5% was recorded in Hirapur village of Kalaburagi district followed by raichur district with the incidence of 13.00% in Yermarus village and the least incidence of 5.00% was observed in Tadola village of Basavakalyan taluk. From the survey, it is clear that Pigeonpea crop in Raichur district was most affected due to dry root rot incidence.