Efficacy of Cymbopogon Schoenanthus L. Spreng (Poaceae) Extracts on Diamondback Moth Damaging CabbageYao Adjrah1*, Bakouma Laba2, Amen Y Nenonéné2, Koffi Koba2, Wiyao Poutouli3, Komlan Sanda2
- *Corresponding Author:
- Yao Adjrah,
Laboratoire de Microbiologie et de Contrôle de qualité des Denrées Alimentaires
Ecole, Supérieure des Techniques Biologiques et Alimentaires (ESTBA) Université de Lomé BP 12281
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Received date: March 31, 2012; Accepted date: June 15, 2012; Published date: June 17, 2012
Citation: Adjrah Y, Laba B, Nenonéné AY, Koba K, Poutouli W, et al. (2012) Efficacy of Cymbopogon Schoenanthus L. Spreng (Poaceae) Extracts on Diamondback Moth Damaging Cabbage. J Biofertil Biopestici 3:119. doi:10.4172/2155-6202.1000119
Copyright: © 2012 Adjrah Y, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
This study aims to examine the insecticidal properties of the aerial part of Cymbopogon schoenanthus. Cabbage plants were sprayed with the aqueous extracts of C. schoenanthus leaves as treatment, and the damage levels of Plutella xylostella was assessed. In vitro, the emulsified essential oil concentrations were used in a contact test on the larvae in order to assess the mortality effects. The larvae survival time was only 22 seconds with C. schoenanthus emulsified oil treatment (2 g/l), whilst it exceeded 44,100 seconds (over 12 hours) for the dimethoate. The nutrition test showed that at 48 h period, a significant effectiveness against larvae was observed with emulsified oil treatment 2 g/l (60% mortality) versus 10% of mortality for dimethoate. Cymbopogon schoenanthus can validly be used as alternative in P. xylostella management. The results of the field experiments showed no significant difference between the treatments and the control in terms of marketable cabbages harvested.