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


2019 Bulletin: Feedback sought on Pest Degree Day Calculator Upgrade
The Illinois Degree Day calculator has been available to Illinois producers since 2004. Hosted by the Illinois Climate Network (ICN), this pest...

2019 Bulletin: What effect will cold temperatures have on pests and pathogens?
Nathan Kleczewski Research assistant Professor and Extension Field Crop Pathologist Nick Seiter- Research Assistant Professor and Extension Field Crop Entomologist   Many in the Illinois agricultural community are wondering what effects the recent...

2019 Bulletin: Field Performance of Seed Treatments and Soil Insecticides for Corn Rootworm Control
Authors: Nick Seiter and Joe Spencer Producers across east-central Illinois have enjoyed low western corn rootworm pressure for several years, due to a combination of saturating rains during rootworm egg hatch...

2019 Bulletin: Despite local Bt resistance, growers still have options
The development of resistance to Bt Cry toxins by the western corn rootworm is a growing concern, highlighted by the recent confirmation of field-evolved resistance to Cry34/35Ab1 in Iowa (...

2018 Bulletin: PEst and Pathogen Applied Research Guide now available
The 2018 report on applied pest and pathogen research in Illinois is now available.  This guide provides information on pest and disease management research updates.  It is currently located at...