The same old crop pests— army-worms, cutworms and grasshoppers — are with us in Iowa, though we shall fight them largely with new poisons this year because some of the insecticides we used before the war are no longer available.
Drake, C. J. and Harris, H. M.
"New Bait for Worms, Hoppers,"
Farm Science Reporter: Vol. 4
, Article 6.
Available at: http://lib.dr.iastate.edu/farmsciencereporter/vol4/iss3/6