Bio-efficacy of Econeem Plus® against whiteflies in cotton under field conditions

Abstract

A field experiment was conducted to evaluate the Bio-efficacy of Econeem Plus® against Whiteflies in Cotton under field conditions at Narendra village, Dharwad district, Karnataka during 2018. Seven treatments comprising of Econeem Plus® at different concentrations viz., 2, 2.5 and 3ml/L, combination of Econeem Plus® + Ecospread® at 2 +0.5 ml/L, 2.5 +0.5 ml/L and 3 +0.5 ml/L. These were compared with an untreated control (water spray) and evaluated. The results revealed that Econeem Plus® is effective against cotton whiteflies at the dosage of 2.5 and 3 ml/L. Addition of Ecospread at 0.5 ml increases the efficacy rate. The per cent reduction of whiteflies at 10 days after first and second spray shows that, Econeem Plus® at 3ml/L+ Ecospread at 0.5 ml/L resulted 78.1% and 84.9% reduction over control respectively. The phytotoxicity study also reveals that the product is safe and controls only the target pest i.e., cotton whiteflies.