Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Purdue Extension Corn Field Scout Screenshots

iPhone

Purdue Extension Corn Field Scout poster

About Purdue Extension Corn Field Scout

Growers and consultants have relied on the Purdue Extension Corn & Soybean Field Guide for more than 20 years. This is the perfect in-field reference that takes the popular guide to the next level. Purdue University specialists created this comprehensive, science-based app to help you effectively manage corn production.

You can check out a free preview of this app, Purdue Extension Corn Field Scout Preview, that has limited functionality.
The Purdue Extension Corn Field Scout provides built-in calculators for seeding rates, estimating yield loss, limestone recommendations, nitrogen recommendations, phosphorus recommendations, and potassium recommendations. There’s even a section to add field notes.

The Insects & Nematodes, Diseases, and Weeds sections will help you identify the common pests of corn and the damage they cause. You’ll also find sampling and management information.

The Soils & Fertility section provides the latest nutrient recommendations and shows common signs of nutrient deficiencies.

The Diagnosing Herbicide Injury section provides a tool for identifying herbicide injury and describes herbicide modes of action.

And the Planting, Growth, & Development section provides information about identifying and predicting growth stages.

This app includes hundreds of useful, high-quality images to help you diagnose problems and understand common issues in corn production.

We also offer a companion app: The Purdue Extension Soybean Field Scout.