Evaluation of bio-rational insecticides against major sap sucking insect pests of sweet basil (Ocimum basilicum L.) Kumar Ashok1*, Swaminathan R.1, Mahla M.K.1, Ahir K.C.1, Kachhawa D.2, Meena B.M.3 1Department of Entomology, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture & Technology, Udaipur-313001, Rajasthan, India 2Krishi Vigyan Kendra, Dholpur, Sri Karan Narendra Agriculture University, Jobner-328001, Rajasthan, India 3Department of Agriculture, Government of Rajasthan, Jaipur-302001, Rajasthan, India *Corresponding author e-mail: bishnoiashok92@gmail.com
Online Published on 06 January, 2022. Abstract Efficacy of bio-rational insecticides evaluated after two sprays indicated that among all the bio-rational insecticidal treatments, the Azadirachtin 1500 ppm was found most effective at 3, 5 and 7 days after first spray against sap sucking insect pests as well as defoliators; while the, minimum per cent mean population reduction was recorded in nicotine sulfate 40S (0.02%) against all the insect pests occurred on sweet basil during kharif season 2016–17 and 2017–18. After second spray, the spinosad 45SC (150 ml/ha) was recorded superior among all the bio-rational insecticidal treatments against defoliator insect pests at 3, 5 and 7 days; whereas, the Bacillus thuringiensis (1.5 kg/ha) was least effective at 3, 5 and 7 days after second spray during both the years 2016–17 and 2017–18. Top Keywords Lamiaceae, Lace bug, Azadirachtin, Medicinal plant, Thrips. Top |