Vol. 12, Issue 4 (2023)

Author(s):
JK Patel, RN Patel, DM Zapadiya, SJ Vaghela and J Khaniya

Abstract:
A field experiment was conducted at Potato Research Station, S. D. Agricultural University, Deesa during 2018-19 and 2019-20 for evaluation of efficacy of two most popular insecticides against aphid in potato. The five different treatments viz. T₁- water spray (Untreated), T₂- Foliar spray of Imidacloprid 17.8 SL @ 30 g ai ha^-1, T₃-Foliar sprays of Imidacloprid 17.8 SL@ 30 g ai ha^-1+ repeat at 15 days, T₄-Single foliar spray of Flonicamid 50 WG @ 75 g ai ha^-1, T₅-Foliar spray of Flonicamid 50 WG @ 75 g ai ha^-1 + repeat at 15 days were evaluated. Based on pooled data of two years, the result revealed that maximum aphid mortality (87.17 %) after third spray was observed with foliar sprays of flonicamid 50 WG @ 75 g ai ha^-1 + repeat at 15 days followed by imidacloprid 17.8 SL @ 30 g ai ha^-1 + repeat 15 days (68.03%). The tuber yield was also recorded higher with flonicamid (60.31 t ha^-1) followed by imidacloprid (58.43 t ha^-1) as compared to control.