The smash of Parthenium hysterophorus L. in the grasslands of Oman

This study examines the invasiveness of Parthenium hysterophorus L. considered as harmful, unpleasant noxious invasive weed in Sultanate of Oman. Since the subject of investigation has allelopathic effects, the author’s objective is to identify its abundance, its impact to environment, human and animal health. Allelopathy of this invasive weed has started to be known and considered by the farmers and harvesters. The harmful and socio-economic effects of the weed to humans, animals and to landscape are not fully known nor understood by the local farmers and pastoralists in the southern part of Oman where this weed is most invasive. Data were collected through field observation, informal interviews, focus group discussions and survey questionnaire. They were treated and analysed using descriptive statistics. Findings prompted the participants to propose possible and practical control solutions for the spread of P. hysterophorus if not totally eradicated, considering the availability of resources, level of awareness and the socio-economic status of the affected regions. The results of the investigation are hoped to improve the over-all management that are being conducted by the concerned agencies and volunteers towards the rapid spread of the weed. The findings revealed that P. hysterophorus has serious impacts on vegetation, pastures and agriculture, as it was observed in reduced level growth of both plants and trees. The possible control measures gathered from the participants indicate that they are willing to cooperate and learn more about the impact of the weed.