Claim · model-written summary
Most farmers (78%) observed parthenium weed mainly during summer.
- Taxon
- Parthenium hysterophorus L.
Parthenium hysterophoruse0 - Outcome
- observed ite1
- Value
- 78%e1
- Qualifier
- mainly during summere1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Parthenium weed ( Parthenium hysterophorus L.) is an invasive alien plant”
e1“78% observed it mainly during summer”
Title
Farmer perceptions of the impact and management of parthenium weed in eastern Bhutan
Sangay Dorji; Ali Bajwa; Asad Shabbir; et al. Biological Invasions 2026. doi:10.1007/s10530-026-03871-x
Other claims from this paper (19)
- Observation Most farmers (92%) identify parthenium weed at young and flowering stages.
- Observation Parthenium weed infestations are most frequently observed along roadsides (89% of farmers).
- Observation Parthenium weed infestations are observed in dryland crops (35%).
- Observation Parthenium weed infestations are observed in paddy fields (34%).
- Observation Parthenium weed infestations are not found around irrigation channels or forests.
- Observation Most farmers (36%) sighted parthenium weed 6–10 years ago.
- Observation 88% of farmers perceive an increase of parthenium weed over the years.
- Observation Farmers attribute the spread of parthenium weed largely to vehicle movement (55%).
- Observation Most farmers (89%) perceive parthenium weed as invasive.
- Observation Maize yield losses are reported by farmers at 12%.
- Observation Rice yield losses are reported by farmers at 13%.
- Observation About 29% of farmers perceive crop yield losses from parthenium weed.
- Observation Livestock grazing on parthenium weed is noted by 24% of respondents.
- Observation Only one farmer reported an ill effect of parthenium weed, tainted and poor-quality milk.
- Observation Public health problems are reported by 59% of respondents.
- Observation Itching is the most reported health problem (76% of farmers).
- Observation Manual removal is the main control method, implemented by 97% of farmers at about US $150 per household per year.
- Observation Most farmers (86%) perceive parthenium weed as a concern; 66% express the need for an awareness program.
- Recommendation Awareness programs, early detection and control, and a policy to prevent spread are recommended for Bhutan.