The 2025 WC94 provides useful information for the selection of herbicides to be used for weed management in soybeans, corn and pasture grown in Iowa. Herbicide injury symptoms that may occur on crops are described as well as timely discussions about evolved herbicide resistance in Iowa, issues with invasive weeds and the potential for herbicide carryover.

This 236-page pocket-sized guide (3-3/4" x 6") combines corn and soybean integrated pest management information in one publication for ease of use by corn and soybean farmers, agronomists, and crop scouts.

Newly updated text and images provide the tools for identifying insects, diseases, and disorders of corn and soybean in the Midwest. The guide also contains information on developmental stages, pesticide decisions, and other production-related topics. This publication is constructed of durable, weather-safe materials to withstand regular use in the field.

Looking to purchase multiple copies? The guide is also sold in boxed quantities of 25 at a reduced price ($13/copy).

This 236-page pocket-sized guide (3-3/4" x 6") combines corn and soybean integrated pest management information in one publication for ease of use by corn and soybean farmers, agronomists, and crop scouts.

Newly updated text and images provide the tools for identifying insects, diseases, and disorders of corn and soybean in the Midwest. The guide also contains information on developmental stages, pesticide decisions, and other production-related topics. This publication is constructed of durable, weather-safe materials to withstand regular use in the field.

Sold as a box of 25 copies ($13/copy) 

A digital version of the guide is available; see the single copy listing.

This guide provides conventional pest management recommendations for commercial tree fruit, small fruit, and grape producers throughout the Midwest and surrounding states. These recommendations have been formulated to provide up-to-date information on pesticides and their application.

The guide is available in printed form or as a PDF from Purdue University. Click on"View the Guide" to open the PDF.

This two-page fact sheet gives notification requirements and sign specifications for commercial and public pesticide applicators in urban areas of Iowa.

Reviewed and updated as requirements change.

This guide explains how to calibrate a field sprayer in five simple steps. Includes tables on speed conversion, theoretical coverage at various spray heights, and useful conversion factors.

Find management practices that keep pesticides and nutrients in the field and out of Iowa's rivers and streams. Describes how pesticides move through the soil. Includes a checklist of management practices to protect water resources.

Previously known as PAT 0055

This publication provides information on foliar fungicides for corn, including when to scout, disease risk factors, and when a foliar fungicide application should be considered.

Nozzle selection is the most important factor in reducing pesticide drift. Get details here on matching your application needs to the nozzle best suited to the situation.