Petroleum ether extracts of leaves, stem and inflorescence of Parthenium hysterophorus Linn. at 500, 1000, 2000 and 5000ppm concentrations were tested in the laboratory for their toxic effects on the mean life span and progeny production of adults of the mustard aphid, Lipaphis erysimi (Kalt.). The investigations revealed a significant decrease in life span and progeny production with treatment. Among the three plant parts tested for their efficacy, the leaf extract showed the most significant effect in causing a dose dependent decline in both the life span and progeny production.
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ICAR Natl Res Ctr Plant Biotechnol, Indian Agr Res Inst Campus, New Delhi 110012, IndiaICAR Natl Res Ctr Plant Biotechnol, Indian Agr Res Inst Campus, New Delhi 110012, India
Koramutla, Murali Krishna
Aminedi, Raghavendra
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ICAR Natl Res Ctr Plant Biotechnol, Indian Agr Res Inst Campus, New Delhi 110012, IndiaICAR Natl Res Ctr Plant Biotechnol, Indian Agr Res Inst Campus, New Delhi 110012, India
Aminedi, Raghavendra
Bhattacharya, Ramcharan
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ICAR Natl Res Ctr Plant Biotechnol, Indian Agr Res Inst Campus, New Delhi 110012, IndiaICAR Natl Res Ctr Plant Biotechnol, Indian Agr Res Inst Campus, New Delhi 110012, India