Lethal and sublethal effect of Rosmarinus officinalis, Foeniculum vulgare, Datura stramonium and Mentha pulegium extracts on Diaphania indica

Shokoohi, Abbas (2016) Lethal and sublethal effect of Rosmarinus officinalis, Foeniculum vulgare, Datura stramonium and Mentha pulegium extracts on Diaphania indica. Masters thesis, university of zabol.

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Abstract

In recent decades, many studies have done on botanical compounds to access safe or low- risk and more effective alternatives for pest control. In this study lethal and sub lethal effects of four plant extracs of Fennel Foeniculum vulgar, Datura Datura stramonium, Rosemary Rosmari nusofficinalis and Pennyroyal Mentha pulegium were evaluated on third larval stage of Diaphania indica under laboratory conditions. Results showed that Lc50 rates of extracs in the topical method 24h after exposure were 11.8, 11.7, 15.7, 21.2 μg/insec respectively and 0.98, 1.01, 1.5, 2.02 mg/ml for pashesh method. It was revealed that all tested extracs had lethal effects against third larval stage of the insect and mortality percentages were increased by increasing of extracs concentrations in each one. In another part of this study, sub lethal effects of Lc30 and Lc10 rates of all extracs 24h after exposure, were evaluated. Results showed that all extracs were reduced offspring production significantly. Life table evaluation showed that sub lethal concentrations of all extracs significantly reduced the intrinsic rate of population increasing (Rm), net reproductive rate (ro) and generation period (T). These results can use as a base for next researches to progress management programs of D. indica.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Botanical products, Sub lethal effects, lethal effects, Diaphania indica
Subjects: S Agriculture > SB Plant culture
Depositing User: admin admin1 admin2
Date Deposited: 21 May 2017 08:45
Last Modified: 21 May 2017 08:45
URI: http://eprints.uoz.ac.ir/id/eprint/1343

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