Publications for:

pest = Helminthotheca echioides (weed)
country = Spain (continental)

found 3 publications:

2003

Multi-species weed spatial variability and site-specific management maps in cultivated sunflower
Weed Science (2003) 51 (3), 319-328
publishers website - pestinfo wiki

2000

First report of natural infection of greenhouse-grown tomato and weed species by Pelargonium zonate spot virus in Spain
Plant Disease (2000) 84 (7), p.807
publishers website - pestinfo wiki

1990

Influence of environmental factors on the weed flora in crops in the Guadalquivir Valley
Weed Research (1990) 30 (5) , 363-374
publishers website - pestinfo wiki