Pesticide Research Journal

SCOPUSWeb of Science
  • Year: 2020
  • Volume: 32
  • Issue: 1

Management of rose flower thrips, Frankliniella schultzei with insecticides

1Floriculture Research Station, Thovalai, 629302, Tamil Nadu, India

2ICAR-Vivekananda Parvatiya Krishi Anusandhan Sansthan, Almora, 263601, Uttarakhand, India

Abstract

The flower thrips, Frankliniella schultzei Trybom (Thysanoptera: Thripidae) is a common pest of rose causing quality deterioration and yield loss. The study reports comparative performance of 11 insecticides for their toxicity against rose thrips. Acute toxicity revealed thiamethoxam (Actara 25 WG) to be highly toxic with a LC50 of 6.566 ppm followed by acephate (LC50=6.948). Spray of thiamethoxam 25 WG @ 0.2 gL−1 of water was the most effective followed by acetamiprid in field studies conducted with 8 efficacious insecticides applied at visible thrips damage in flowers and repeated twice at 20 d interval. None of the test formulations caused any phytotoxicity against the rose plants.

Keywords

Insecticides, Rose thrips, Frankliniella schultzei, Bioefficacy