Publications for:

pest = Rhopalosiphum maidis
crop = Barley (Hordeum vulgare)
country = U.S.A. (NW)

found 2 publications:

1990

Association between karyotype and host plant in corn leaf aphid (Homoptera: Aphididae) in the northwestern United States
Environmental Entomology (1990) 19 (3), 609-611
pestinfo wiki

1988

Karyotype variation in the corn leaf aphid, Rhopalosiphum maidis (Fitch), species complex (Hemiptera: Aphididae) in relation to host-plant and morphology
Bulletin of Entomological Research (1988) 78 (2), 351-363
publishers website - pestinfo wiki