Agricultural Extension Service, South Dakota State College
Every garden .is open to attack by insect pests at some time during the growing season. These attacks may cause severe damage if they go unnoticed and unchecked. It is important to learn to recognize these insects so that the proper control measures may be applied at the right time. Adequate fertility, clean culture, weed control, daily watchfulness and prompt treatment for insects and plant diseases, will do much to increase garden production.
Lofgren, John A., "Garden Insects and Their Control" (1952). SDSU Extension Circulars. 558.