African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6576

Full Length Research Paper

Emamectin Benzoate 5 SG: A safer insecticide to coccinellids predators in cotton ecosystem

K. Govindan*, K. Gunasekaran and S. Kuttalam
Department of Agricultural Entomology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore – 641 003, Tamil Nadu, India.
Email: [email protected]

  •  Accepted: 22 May 2013
  •  Published: 06 June 2013

Abstract

Two field experiments were conducted one at Vellan Koil in winter season cotton cultivar - MCU 5 during January to April 2008 and the other at Erangkattur on Cultivar -Surabhi during May to September 2008. Both the field experiments were conducted in erode districts of Tamil Nadu to evaluate the safety of new formulation emamectin benzoate 5 SG at different doses (emamectin benzoate 5 SG at 7, 11 and 15 g a.i. / ha) in comparison with standard check, Proclaim® at 11 g a.i. / ha (emamectin benzoate 5 SG) which is a registered product of Syngenta and spinosad 45 SC at 75 g a.i. / ha) to coccinellid predators in cotton ecosystem. Observation on the population of coccinellids were made prior to spraying and on 1, 3, 5, 7 and 10 days after spraying from ten randomly tagged plants per plot and the mean population was worked out. The results showed that emamectin benzoate 5 SG was found safer to coccinellids at all the tested concentrations. The highest population was recorded in plots treated with emamectin benzoate 5 SG at 7 g a.i. / ha followed by emamectin benzoate 5 SG at 11 g a.i. / ha.

 

Key words: Safety, emamectin benzoate 5 SG, coccinellids, cotton ecosystem.