White grubs with their heavy damage to corn, timothy, blue grass, potatoes and strawberries cause one of the largest items of losses due to insects on the farms of Iowa. This loss attains its maximum each third year when "Brood A" of the white grubs is in its most destructive stage. The spring and summer of 1927 was one of these times. During and following the period of damage a thorough, comprehensive survey was made to determine the extent of the infested area and relative seriousness of the attack. Observation and reports were made in every county. The County Agricultural Agents, the State Entomologist, farmers, bankers and others contributed to the data from which the accompanying map has been made.
Proceedings of the Iowa Academy of Science
©1928 Iowa Academy of Science, Inc.
Jaques, H. E.
"The Distribution of White Grubs in Iowa in 1927,"
Proceedings of the Iowa Academy of Science, 35(1), 303-304.
Available at: https://scholarworks.uni.edu/pias/vol35/iss1/72