Avoidable Losses Due to  Lipaphis erysimi  (Kalt.) in Mustard

G. M. Parmar; M. N. Kapadia; N. B. Jadav; V. J. Zizala

Avoidable Losses Due to Lipaphis erysimi (Kalt.) in Mustard

G. M. Parmar ¹, M. N. Kapadia ², N. B. Jadav ¹, V. J. Zizala ¹

Affiliations
1 Krishi Vigyan Kendra, Junagadh Agricultural University, Jamnagar (Gujarat), India
2 Dept. of Entomology, College of Agriculture, Junagadh Agricultural University, Junagadh (Gujarat), India

A field experiments was conducted to estimate the avoidable losses caused by Lipaphis erysimi in mustard sprayed with fungal biopestcides alone and in combination with synthetic insecticides. The percentage of avoidable yield losses in mustard seed were found varying from 11 to 68%. Acephate 0.05% recorded lowest yield loss of 11% followed by Verticillium lecanii @ 1.0 kg/ha+imidacloprid 0.0025 per cent (14%) and V. lecanii @ 1.0 kg/ha+acephate 0.025 per cent (20%). Higher avoidable loss (38 to 55%) observed in the treatment of V. lecanii @ 2.0 kg/ha, Beauveria bassiana @ 2.5 kg/ha and azadirachtin 0.000375%.