Efficacy of anthranilic insecticide E2Y45 20 SC (Chlorantraniliprole) against Plutella xylostella L. in cabbage, Brassica oleracea var. capitata

Abstract

Experiments were conducted at farmer’s cabbage fields to evaluate the bioefficacy of anthranilic insecticide i.e. E2Y45 20 SC (Chlorantraniliprole) having novel mode of action against the diamondback moth Plutella xylostella L. E2Y45 20 SC was applied @ 25.0, 37.5 and 50.0 ml/ha and was compared with Padan 50 SP (cartap hydrochloride) @ 500 g/ha and the untreated control. Lowest mean larval population after two sprays was recorded in higher dose of E2Y 45 20 SC i.e. @ 50.0 ml/ha (0.08 larvae/plant) at 7 days after treatment followed by medium and lower dose of E2Y 45 20 SC i.e. @ 37.5ml/ha (0.10 larvae/plant) and 25.0 ml/ha (0.33 larvae/plant). The larval population in these treatments was significantly lower than standard check, Padan 50 SP (2.56 larvae/plant), and untreated control (9.73 larvae/plant). The highest marketable yield (262.89 q/ha) was recorded in E2Y 45 20 SC @ 50.0 ml/ha which was significantly higher than Padan 50 SP (239.65 q/ha). Lowest yields were recorded in untreated control (106.00 q/ha). Conclusively, medium (37.5 ml/ha) and higher (50.0 ml/ha) dose of E2Y 45 20 SC (chlorantraniliprole) significantly reduced the larval population of P. xylostella and increased the cabbage yield.

Comparative Efficacy and Economics of Chemicals Insecticides and Bioagents against Diamondback Moth (Plutella xylostella) on Cabbage (Brassica oleracea var. Capitata L.)

“…Highest yield and benefit cost ratio was recorded in Chlorantraniliprole 18.5% SC (325 q/ha) (1:6.37) is similar to the findings of Sharma et al, [8], Spinosad 45% SC (310 q/ha) (1:5.75) is similar to the findings of Gill et al, [9] and Gaddam et al, [10], Indoxacarb 14.5% SC (300 q/ha) (1:6.33) is similar to the findings of Harika et al, [11] and Gaddam et al, [10], Emamectin benzoate 5% SG (295 q/ha) (1:6.25) is similar to the findings of Akbar et al, [12], Bacillus thuringeinsis (1x10 8 CFU/ml) (280 q/ha ) (1:5.97) is similar to the findings of Choyon et al, [13] and Beauvaria bassiana (1x10 8 CFU/ml) (270q/ha) (1:5.72) is similar to the findings of Debbarma et al, [14] The treatments Metarhizium anisiopliae (1x10 8 CFU/ml) (260 q/ha) (1:5.50) is similar to the findings of Singh et al, [15], and the lowest yield was recorded in control (150 q/ha) (1:3.34) (Table 1).…”