1Department of Entomology, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur-492 012 (M.P.) (India).
2Department of Entomology, Govind Ballabh Pant University of Agriculture & Technology, Pant Nagar, Nainital, Uttar Pradesh (India).
Phytotoxicity was observed in 20-day old maize plants when Sandovit (0.2%) alone as an emulsifier and with some neem based formulations were sprayed on ‘Navin’ variety of maize. The phytotoxicity was higher when Sandovit 0.2% was used in combination with Achook 0.4% (leaf damage score 4.2 & 4.0) and neem kernel extract 2% (leaf damage score 3.0 & 3.2) during 1993 and 1994, respectively. This resulted in the reduction in plant height (93.3 & 63.3 cm) and grain yield (0.093 kg/five plants). Greenmark (0.4%) + Sandovit at lower concentration (1%) was relatively safer as compared to other combinations, the average leaf damage score being zero, plant height 212.3 and 150.0 cm, and grain yield 0.489 and 0.372 kg/five pants during 1993 and 1994, respectively.
