Fabaceae-parasite
Guides
Therioaphis
Therioaphis is a genus of aphids in the family Aphididae comprising more than 20 described species. The genus includes significant agricultural pests, notably the spotted alfalfa aphid (Therioaphis maculata, also treated as T. trifolii forma maculata) and the yellow clover aphid (Therioaphis trifolii), which infest alfalfa, clovers, and related legumes. These species have been extensively studied for biological control, host plant resistance, and their role as vectors of plant pathogens including alfalfa mosaic virus.