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Year: 2017, Issue: June
Potential impact of Inula racemosa, Cichorium intybus and Mantisalca duriaeri against Plutella xylostella Linn. (Lepidoptera : Noctuidae).
Manish Kumar, R. C. Tripathi and B. S. Chandel
Diamond back moth, Plutella xylostella, Inula recemosa, Mantisalca duriaei
Experiments were conducted to test the insecticidal properties of selected asteraceous botanicals viz.; Chromolaena odorata Linn., Chrysanthemum cinerariaefolium (trev.) Vis.) (flower), Cichorium intybus, Inula racemosa Hook. f (root), Mantisalca duriaei (Spach) Briq. Et. Cavill against 3rd instar, 24 hrs starved larvae of Diamond back moth (DBM), Plutella xylostella Linn. under laboratory trials. For the testing to obtained the mean mortality percent of treated larvae, three treatments were done and each treatment with three replications were introduced. Three concentrations of all selected extract with 0.5%, 1.0%, 2.0% and one untreated control were tested against larvae of P.xylostella were tested by dry film technique under the laboratory experiments. The mortality of P.xylostella was recorded, when exposed to the mustard leaves treated with three concentrations (0.50%, 1.0% and 2.0%) of each treatment. The number of larvae in each petridish was recorded in the basis of percentage reduction of the larvae at the interval of 6, 12 and 24 hours respectively. The highest larval mortality percentage was recorded in 2.0%, extract of I.recemosa (74.26%) followed by C.intybus (68.83%). This paper deals with the eco-friendly effectiveness of various asteraceous plant extracts against P.xylostella and their possible integration into modern IPM programs.
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