First-Year Corn Rootworm Injury: East-Central Illinois Research Progress to Date and Recommendations for 1996
Is Version Of
The Iowa State University Integrated Crop Management Conference is Iowa's premier crop production education event. No other program in Iowa brings together the diverse range of topics, slate of expert presenters and results of the latest University research.
The ICM Conference offers workshops focusing on the latest in crop production technology. Experts from Iowa and surrounding states will provide research updates and results in soil fertility, soil and water management, crop production and pest management.
Western and northern com rootworms are the most serious insect pests of non rotated com in the midwest (Levine and Oloumi-Sadeghi 1991). Adult female beetles lay the vast majority of their eggs in the soil of cornfields during August and early September, and the eggs lie dormant until hatching in the spring. Generally, very few eggs are laid in other crops. Because rootworm larvae cannot survive on roots of crops such as soybeans, alfalfa, or wheat, crop rotation is recommended to manage these pests. In fields where com is grown year after year, soil insecticides are typically applied to protect roots from rootworm feeding.