Volume 5, Issue 1 (2016)                   JCP 2016, 5(1): 131-138 | Back to browse issues page

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Koupi N, Ghazavi M, Kamali K, Baniameri V. Virulence of Iranian isolates of Metarhizium anisopliae on western flower thrips, Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae). JCP. 5 (1) :131-138
URL: http://jcp.modares.ac.ir/article-3-11431-en.html
1- Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran.
2- Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
Abstract:   (2568 Views)
The Western flower thrips Frankliniella occidentalis, an important greenhouse pest, has acquired rapid resistance to the chemical pesticides. Therefore, biological control is worth consideration as an alternative control method. Among the biological control agents, entomopathogenic fungi showed to be quite successful in some occasions. In this study, three Iranian isolates of Metarhizium anisopliae (‘DEMI001’, ‘DEMI002’ and ‘DEMI003’) were bioassayed for their lethal effects on the adults of the F. occidentalis, in vitro. The ‘DEMI002’ and ‘DEMI003’ had the lowest and highest LC50 at concentrations of 3.06 ´ 104 and 1.90 ´ 105 conidia/ml, respectively. Also, the isolate ‘DEMI002’ had the lowest LT50 of 4.39 ± 2.13 days at the concentration of 106 conidia/ml. The mean comparison showed that there was a significant difference between DEMI002 and DEMI003 in terms of virulence at most of the concentrations. Consequently, the ‘DEMI002’ can be considered as a promising tool in biological control programs of the F. occidentalis.
Full-Text [PDF 260 kb]   (2269 Downloads)    
Article Type: Full Paper | Subject: Insect Microbial Control
Received: 2015/07/5 | Accepted: 2015/11/20 | Published: 2015/12/1

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