Anti-Insect Activities of Plant Extracts on the Diamondback Moth, Plutella xylostella (L.)
Journal Title: International Journal of Current Microbiology and Applied Sciences (IJCMAS) - Year 2017, Vol 6, Issue 12
Abstract
The diamondback moth is known globally by many as the most destructive and economically important insect pest of cruciferous crops. It is also known to have developed resistance to numerous synthetic insecticides including those with newer active ingredients (Shelton et al., 2008); and this has triggered the development of alternative measures, including botanical insecticides (Oyedokun et al., 2011). Experiments were conducted under laboratory conditions to study the anti-insect activities of locally available plants against diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae). In the preliminary screening of 45 plants, higher per cent mortality was recorded on 5 DAT in the aqueous leaf extract (10 %) of Prosopis juliflora (96.67 %), Andrographis paniculata (80.00 %), Sesbania grandiflora (73.33 %), Annona squamosa (66.67 %), Jatropha curcas (66.67 %), Abutilon indicum (60.00 %), Curcuma longa (56.67 %) and Azadirachta indica (53.33 %). The highest pupal mortality was recorded in Cymbopogon schoenanthus (60.00 %), Gliricidia sepium (50.00 %), Cyperus rotundus (53.33 %), Azadirachta indica (46.67 %) and Tagetes tenuifolia (30.00 %). No adult emergence was observed in P. juliflora, A. paniculata and A. indica. The effect of the selected five plants viz., P. juliflora, A. paniculata, S. grandiflora, J. curcas and C. longa on the growth and development of P. xylostella was confirmed in the confirmative experiment. The highest anti- feedant activity against P. xylostella was observed in P. juliflora (58.41 %). The oviposition deterrence percentage by free choice test was found to be the highest in S. grandiflora (85.95 %) and by no choice test was found to be the highest in P. juliflora (61.26 %).
Authors and Affiliations
R. Sangavi, Y. S. Johnson Thangaraj Edward
Keywords
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- EP ID EP573985
- DOI 10.20546/ijcmas.2017.612.004
- Views 63
- Downloads 0
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