Contact: +91-9711224068
Journal of Entomology and Zoology Studies
  • Printed Journal
  • Indexed Journal
  • Refereed Journal
  • Peer Reviewed Journal

ISSN Print: 2349-6800 | ISSN Online: 2320-7078

Journal of Entomology and Zoology Studies

2017, Vol. 5, Issue 2
Phytotoxicity and their bio-efficacy of pesticides against key insect pests of Rabi sorghum [Sorghum bicolor (L.) Moench]

Ambarish S, AP Biradar and SB Jagginavar

Totally 15 pesticides were evaluated consisting of 13 insecticides, 1 acaricide and 1 botonical, along with control at 3 dosages. The pesticides were applied at 20, 60 and 90 days after sowing. Observation on different phytotoxic symptoms was recorded based on visual score (1-10) later per cent phytotoxicity was calculated. Highest mean per cent phytotoxicity index was recorded in the profenophos @ 1.0, 2.0, 4.0 ml/litre treated plots (20.2, 44.1 and 56.1 PPI) at seedling, vegetative and reproductive stage of crop growth, followed by spiromesifen. Others such as malathion, methomyl, chlorphyriphos, cypermethrin, alphamethrin, imidacloprid produced the phytotoxic symptoms to a various level. Acephate, fipronil, carbofuran, phorate, chlorantraniliprole, emamectin benzoate and NSKE were found safe to sorghum. Among chemical pesticides evaluated, carbofuran and imidacloprid were found superior in reducing the shoot fly, where as acephate, fipronil, imidacloprid and NSKE were found superior in reducing the sucking pests.
Pages : 716-720 | 564 Views | 33 Downloads
How to cite this article:
Ambarish S, AP Biradar, SB Jagginavar. Phytotoxicity and their bio-efficacy of pesticides against key insect pests of Rabi sorghum [Sorghum bicolor (L.) Moench]. J Entomol Zool Stud 2017;5(2):716-720.
Journal of Entomology and Zoology Studies
Please use another browser.