Home --> Field Crops --> Insects

Insects

Technically, an insect pest of crops is any species that feeds on crops and thus competes with producers for crop yield or quality. However, the mere presence of a crop-feeding insect is not enough to establish a species as a pest that requires expenditures for its management. The status of any given pest (major or minor) depends largely on how often and in what numbers it occurs, as well as the economics of managing the pest. Factors that contribute to choices about insect management include the market value of the crop, the cost of controlling the pest relative to its potential for causing crop loss, the susceptibility of the crop to the pest, and the environment, all of which are variable. Consequently, effectively managing insect pests of field crops requires considerable knowledge about the pests and the factors that affect their populations.

Copied from Chapter 13 of the Illinois Agronomy Handbook
Kevin Steffey and Mike Gray, Authors


2017 Bulletin: Join us for the Ewing Agronomy Field Day on Thursday, July 27, 2017
The University of Illinois Extension will host the Ewing Demonstration Center Agronomy Field Day on Thursday, July 27, 2017 at 9 a.m.  Every growing season presents challenges to production, and...

2017 Bulletin: Insect Briefs - June 30
Japanese Beetles Japanese beetles are back. Reports statewide indicate Japanese beetles are here (and in some locations, in very high numbers.) With corn starting to tassel and getting close to tassel,...

2017 Bulletin: Impressive Moth Flights across Midwest
Impressive moth flights have not only kept the Illinois insect monitoring network cooperators busy, but neighboring states are reporting lots of black cutworm and true armyworm moth activity as well....

2017 Bulletin: Cooperators Sought for Insect Trapping Network
Despite the snow falling outside of my window this morning, plans continue for the upcoming survey season. Mother Nature has hinted at spring with temperatures in the 70's just last...

2016 Bulletin: Extension Bi-State Crops Conferences in and near Western Illinois
Newer and longer-term partnerships between personnel in Illinois and personnel in Missouri and Iowa have resulted in several bi-state crops conferences to be held during January 2017 in Western Illinois...