Vol. 10, Special Issue 6 (2021)

Author(s):
Shubhangi Khandare, Dr. Anil Kolhe and Dr. Dhanraj Undirwade

Abstract:
The roving survey was carried out in soybean growing tracts of Vidarbha. i.e. Akola, Washim, Buldhana and Amravati districts during flowering and harvest stage of soybean crop in Kharif 2018 and Kharif 2019. During Kharif 2018, at flowering stage of soybean crop the highest stem fly infestation to the extent of 38.80% (16.00 to 58.08%) was recorded in Buldhana district, whereas, the lowest stem fly infestation was observed to the tune of 27.20 per cent. Similarly at harvest stage, the maximum percent of stem fly infestation was observed in Buldhana district to the tune of 9.78% and the lowest stem fly infestation was observed in Amravati district 35.42% (16.08 to 54.58%). During Kharif 2019 at flowering stage, the highest stem fly infestation 41.95% (18.08 to 64.80%) was recorded in Buldhana district, whereas, the lowest stem fly infestation to the extent of 27.16% (14.08 to 39.20%) was observed in Akola district. At harvest, the highest stem fly infestation was noticed to the tune of 45.76% (24.32 to 67.52%) in Buldhana district. The lowest stem fly incidence to the extent of 35.36% (28.64 to 52.48%) was recorded in Akola district. During Kharif 2018, the highest stem tunneling due to stem fly was observed in Buldhana district both at flowering (16.21%) and at harvest (18.99%). The lowest stem tunneling to the tune of 14.23% at flowering stage and 16.84% at harvest stage was observed in Washim district. During Kharif 2019, at flowering stage (19.02%) the highest stem tunneling was observed in Buldhana district and minimum stem tunneling (15.67%) was observed in Amravati district, whereas, at harvest stage the highest stem tunneling (22.51%) was observed in Akola district and the lowest stem tunneling (16.83%) was observed in Amravati district.