# Purdue Extension Corn Field Scout > In-field reference app for corn production management and pest identification. (iPhone/iPad app by Purdue University.) - Source: https://appshunter.io/ios/app/purdue-extension-corn-field-scout/id1127799599 (this page in markdown: same URL + `.md`) - Developer: [Purdue University](https://appshunter.io/developer/371741257) - Category: Education, Business - Price: $5.99 - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 8.0 · 140 MB - Languages: English - Released: 2017-03-08 - Data updated: 2026-07-04 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/purdue-extension-corn-field-scout/id1127799599/reviews.md ## What is 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. ## Key features - Pest, disease, and weed identification - Seeding rate calculator - Yield loss estimation - Nutrient recommendation calculators - Field notes section - Herbicide injury diagnosis - Growth stage identification ## Frequently asked questions about Purdue Extension Corn Field Scout ### What is Purdue Extension Corn Field Scout? Purdue Extension Corn Field Scout is a comprehensive, science-based mobile application designed to assist growers and consultants in effectively managing corn production. It provides tools for identifying common pests, diseases, and weeds, along with calculators for various agricultural recommendations. ### What kind of calculators are included in Purdue Extension Corn Field Scout? The app includes built-in calculators for seeding rates, estimating yield loss, limestone recommendations, nitrogen recommendations, phosphorus recommendations, and potassium recommendations, helping users make informed decisions for their fields. ### Can I identify problems in my corn fields with this app? Yes, the app features sections dedicated to Insects & Nematodes, Diseases, and Weeds, which help users identify common pests and the damage they cause. It also includes a Diagnosing Herbicide Injury section. ### How does Purdue Extension Corn Field Scout help with soil and fertility management? The Soils & Fertility section provides the latest nutrient recommendations and displays common signs of nutrient deficiencies, assisting users in optimizing their soil and fertility practices for better crop health. ### What is the price of Purdue Extension Corn Field Scout? Purdue Extension Corn Field Scout is available for a one-time purchase of $5.99. There is also a free preview version with limited functionality. ### What devices is Purdue Extension Corn Field Scout compatible with? Purdue Extension Corn Field Scout is currently supported on iPhone and iPod devices. It is rated for ages 4 and up. ### How often is Purdue Extension Corn Field Scout updated? The app was last updated on May 5, 2017, with version 1.0.2. While updates have not been frequent recently, the core functionality remains valuable for corn management. ### Does Purdue Extension Corn Field Scout have ads? No, Purdue Extension Corn Field Scout does not contain advertisements. It is a paid application focused on providing essential tools without interruptions. ## Version history (last 3 releases) ### 1.0.2 — 2017-05-05 This app has been updated by Apple to display the Apple Watch app icon. This update corrects issues users may have had taking photos in Field Notes. ### 1.0.1 — 2017-03-16 This update corrects a few display errors with some calculators. ### 1.0 — 2017-03-08 No release notes. ## Apps similar to Purdue Extension Corn Field Scout | App | Rating | Price | Category | | --- | --- | --- | --- | | [Fellowship Bible Peoria, IL](https://appshunter.io/ios/app/fellowship-bible-peoria-il/id6503036570) | — | Free | Education | | [IFCA Events App](https://appshunter.io/ios/app/ifca-events-app/id1664182822) | — | Free | Education | | [IFAS 4RS App](https://appshunter.io/ios/app/ifas-4rs-app/id1032449740) | — | Free | Education | | [State Capitals USA](https://appshunter.io/ios/app/state-capitals-usa/id621824039) | 5.0 (2) | Free | Education | | [MSUES Row Crop Calc](https://appshunter.io/ios/app/msues-row-crop-calc/id1373847740) | — | Free | Education | | [Indiana CCA](https://appshunter.io/ios/app/indiana-cca/id1057337820) | — | Free | Education | ## More apps by Purdue University - [Purdue Mobile Menus](https://appshunter.io/ios/app/purdue-mobile-menus/id456046364) - [Hotseat at Purdue](https://appshunter.io/ios/app/hotseat-at-purdue/id456318091) - [Purdue Tree Doctor](https://appshunter.io/ios/app/purdue-tree-doctor/id561944017) - [Purdue Perennial Doctor](https://appshunter.io/ios/app/purdue-perennial-doctor/id652242531) - [Purdue Annual Doctor](https://appshunter.io/ios/app/purdue-annual-doctor/id652275937) - [Open Passport](https://appshunter.io/ios/app/open-passport/id718333444) All apps by Purdue University: https://appshunter.io/developer/371741257 ## Related topics [purdue extension corn field scout](https://appshunter.io/ios/topics/purdue-extension-corn-field-scout) · [corn yield](https://appshunter.io/ios/topics/corn-yield) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-04.*