Publications for:

pest = Amaranthus spinosus (weed)
crop = Cowpea and relatives (Vigna)

found 2 publications:

2014

Eficiência de herbicidas para a cultura do feijão-caupi
[Efficiency of herbicides for cowpea crop]
Planta Daninha (2014) 32 (1), 197-205
publishers website - pestinfo wiki

2009

Interferência de plantas daninhas na cultura do feijão-caupi
[Weed interference in cowpea]
Planta Daninha (2009) 27 (2), 241-247
publishers website - pestinfo wiki