Impact of certain insecticides on pest suppression and productivity of Kusmi Lac from Ziziphus mauritiana Jaiswal A. K.1,*, Singh J. P.2, Sinha A. K.2 Pest Management Laboratory Transfer of Technology Division, ICAR-Indian Institute of Natural Resins and Gums, Ranchi, 834010 1Division of Crop Protection, ICAR-Indian Institute of Sugarcane Research, Lucknow, 226002 2Division of Entomology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012 *Corresponding author Email: jaiswalak59@gmail.com
Online published on 5 February, 2019. Abstract Some novel insecticides were evaluated for their response on population of two lepidopteran pests of lac insect Kerria lacca (Kerr) and yield of broodlac from kusmi winter crop raised on Ziziphus mauritiana (ber). Indoxacarb, fipronil, spinosad and flubendiamide were sprayed on standing lac crop under different treatments of one, two and three applications. Application of fipronil, spinosad and flubendiamide resulted in 61.24–92.59, 87.08–92.59 and 70.93–96.30% suppression of Eublemma amabilis population, respectively. In contrast, 100% pest suppression was recorded with indoxacarb even with single spray. Similarly, 89.29–96.30, 96.43–100 and 74.99–100% suppression in population of Pseudohypatopa pulverea was recorded with fipronil, spinosad and flubendiamide, respectively. Again complete suppression of P. pulverea was observed with indoxacarb as in case of E. amabilis. In respect of broodlac yield, the treatment of indoxacarb, fipronil, spinosad and flubendiamide resulted in 59.5375.11, 85.21–17.9, 63.81–120.07 and 4.09–83.97% increase, respectively over control. There is a significant increase in yield with one spray of fipronil and spinosad, two sprays of indoxacarb and three sprays of flubendiamide. Considering both qualitative (incidence of pest) and quantitative (yield) parameters, one spray of spinosad, two sprays of indoxacarb and fipronil, and three sprays of flubendiamide will be the best. Top Keywords Kerria lacca, Ziziphus mauritiana, Eublemma amabilis, Pseudohypatopa pulverea, indoxacarb, fipronil, spinosad, flubendiamide, sprays. Top |