Publications for:

pest = Melanoplus femurrubrum
crop = Alfalfa/lucerne (Medicago sativa)
country = U.S.A. (mid N)

found 2 publications:

1955

Control of common alfalfa insects in Wisconsin
Journal of Economic Entomology (1955) 48 (6), 718-723
pestinfo wiki

1950

Low volume sprays for grasshopper control in alfalfa-seed fields
Journal of Economic Entomology (1950) 43 (2), 185-188
pestinfo wiki