Effect of fungicides on key diseases of groundnut in relation to crop stage

Abstract

Five rounds of spray, starting from 30 days after sowing, with 12‐day intervals using carbendazim 0.05% plus mancozeb 0.2% was found to have maximum control over rust and late leaf spot diseases which resulted in 57% increased dry pod yield. However, the reduction of these diseases ultimately contributed to an increase in the 100 kernel weight and shelling percentage. It was also economical to give the fungicidal spray on the maturity stage of the crop.

Keywords:

• Groundnut
• rust
• late leaf spot
• fungicides
• cost‐benefit ratio

Notes

Present address: Assistant Professor, Regional Research Station, Pechiparai, Tamil Nadu Agricultural University, India 629 161.