Reproductive Adaptability of the Invasive Weed Parthenium hysterophorus L.under Different Nitrogen and Phosphorus Levels Allelopathy mechanism of flowers of Parthenium hysterophorus L. on wheat Allelopathy of leaves of Parthenium hysterophorus L. on Abutilon theophrasti Medic. and Echinochloa crusgalli Ecological adaptability and application safety of Epiblema strenuana as a biocontrol agent against ragweed Allelopathic effects of Parthenium hysterophorun aqueous extract on germination of Bidens pilosa and Delavaya toxocarpa Phenotypic plasticity and modular biomass of invasive Parthenium hysterophorus in different habitats in south China Distribution and harmful effects of alien invasive plant Parthenium hysterophorus in Guangxi Allelopathy of flower of Parthenium hysterophorus L. on Echinochloa crusgalli (L.) Beauv. and the isolaton and identification of allelochemicals