1Department of Entomology, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga577412, Karnataka, India
2Department of Plant Pathology, College of Agriculture, Navile, Shivamogga577204, Karnataka, India
*Email: jnh@uahs.edu.in (corresponding author)
Amaranthus and palak are the important leafy vegetables and we consume the whole plant parts except root for our diet regularly. Hence, use of synthetic pesticides poses serious challenge to health and environment. Hence, a field experiment was conducted to assess the effect of organic against leaf miner, Liriomyza sp. on amaranthus and palak was conducted at Zonal Agricultural and Horticultural Research Station (ZAHRS), Shivamogga during 2019–20. Six organic insecticides viz., Neem Seed Kernel Extract 5%, azadirachtin 10,000 ppm, pongamia oil 5%, Beauveria bassiana 1g/ l, Garlic extract 2%, Lecanicillium lecanii 1 g/ l along with one standard check malathion 50 EC @ 2ml/ lt and one untreated control were tested. Among them, NSKE 5% recorded maximum reduction in pest incidence (60.53% and 61.34%) and also, NSKE 5% recorded highest cost-benefit ratio of 1: 2.45 and 1: 1.88, respectively in amaranthus and palak.
Liriomyza sp., amaranthus, palak, efficacy, insecticides, NSKE, azadirachtin, garlic extract, Lecanicillium lecanii, malathion, cost-benefit ratio
