| 1 | This experiment will provide reference basis for choosing feasible plant to against P. hysterophorus by biological control strategy. | |
| 2 | Parthenium hysterophorus L. of the family Asteraceae is an exotic noxious weed from Central America. | |
| 3 | The seeds of accompanied species Bidens pilosa and energy plant Delavaya toxocarpa were treated with the aqueous extracts of root, stem and flower of Parthenium hysterophorus. |