Bioefficacy of insecticides against tomato fruit borer, Helicoverpa armigera (Hubner)

Abstract

Selected insecticides viz. Flubendiamide 39.35% SC, Indoxacarb 14.5% SC, Lambda cyhalothrin 5% EC, Novaluron 10% EC, Quinalphos 25% EC, Spirotetramat 120% SC+ Imidacloprid 120% SC Chlorantraniliprole 18.5% SC were evaluated for their effectiveness against tomato fruit borer by conducting field trial at PGI, MPKV, Rahuri during the year 2019. Three sprays of each insecticide were applied at the occurrence of the pest. The result revealed that lowest larval population (1.14 larvae/plant) of H. armigera was recorded in treatment of chlorantraniliprole 18.5% SC. Flubendiamide 39.35% SC (1.51 larvae/plant) was the next promising treatment followed by indoxacarb 14.5% SC exhibiting 1.70 larvae/plant. Treatments viz. spirotetramat 120% SC + imidacloprid 120% SC, lambda cyhalothrin 5% EC, quinalphos 25% EC found to be moderately effective against H. armigera and recorded larval population ranging from 1.99 to 2.27 larvae/plant H. armigera. Novaluron 10% EC was least effective, with maximum (2.42 larvae/plant) population of H. armigera.

A review on seasonal succession and management of key insect- pest infesting tomato

“…Kumar (2013) investigated several pesticide treatments and discovered that profenophos 50 EC at 1 000 g a.i./ha, emamectin benzoate 5 SG at 22 g a.i./ha, and bifenthrin at 100 g a.i./ha decreased the fruit borer populations and reduced the fruit damage by a factor of 100. Babu and Singh (2015) demonstrated the efficiency of chlorantraniliprole 18.5 SC in the management of H. amigera when compared to other compounds. Mourya et al (2015) found that spinosad and imidacloprid were the most and least effective insecticides against the tomato fruit borer, respectively.…”

“…larval population of H. armigera of 1.05 larvae/5 plants was noted in the treatment with pyridalyl at 150 g a.i./ha which reduced the damage up to the extent of 84.19%. According to Safna et al (2018a), chlorantraniliprole 18.5 SC at 0.005% was the best with the least amount of fruit infestation (13.82%), followed by spinosad (17.39%), indoxacarb 14.5 SC at 0.012% (21.64%) and lambda cyhalothrin 5 EC 0.0025% (23.50%). Swodesh and Bhishma (2019) investigated several chemicals and discovered that flubendiamide 40SC at 0.21 mL/L and emamectin benzoate were both efficient against the tomato fruit borer.…”

“…Rasheed et al (2019), found that the lowest mean of the larval population trends in ascending order was observed in the experimental plots treated with spinetoram followed by emamectin benzoate, cypermethrin and emamectin. As per Hivare et al (2019), treatment with chlorantraniliprole 18.5% SC recorded the minimum larval population of H. armigera, i.e., 0.59 larvae/plant followed by a larval population of 0.73 larvae/plant in treatment with Indoxacarb 14.5% SC and flubendiamide 39.35% SC having a larval population of 0.80 larvae/plant while Patel et al (2019) observed that treatment with flubendiamide 20% WDG at 2.5 mL and chlorantraniliprole 8.5% SC at 3.0 ml recorded the min. infestation of the fruit borer.…”