Horticulture diseases and pests

Plant Diagnostic Clinic

The University of Missouri Plant Diagnostic Clinic identifies and provides management solutions for insects, diseases and weeds.

Weed Science Extension

Explore research-based weed management strategies, herbicide applications, and sustainable practices to enhance crop production and control invasive species.

Sewer Line Chemical Root Control (Category 5B)

Non-soil Agricultural Fumigation Manual for Private Applicators

Soil Fumigation Manual (Category 12 Commercial, Category 21 Private)

Aerial Applicators' Manual (Category 13 Commercial, Category 23 Private)

Be vigilant for spotted lanternfly in Missouri

September 24, 2025

Too much moisture can hinder root development

August 6, 2025

Spotted lanternfly knocking at Missouri's door

July 11, 2025

When your garden becomes a drive-thru for wildlife

July 2, 2025

Internet Center for Wildlife Damage Management

Provides science-based information on how to manage wildlife damage and responsibly resolve human-wildlife conflicts. Ideas for preventing as well as inspecting and identifying wildlife damage are also available on this website.

Asian Longhorned Beetle (USDA APHIS)

Find out more about the Asian longhorned beetle on the U.S. Department of Agriculture's Animal and Plant Health Inspection Service website.

Don't Move Firewood website

Find out how far is too far to move firewood to avoid transporting invasive pests and diseases to new areas.

Herbicide Injury ID app (App Store)

Herbicide Injury ID aids in the diagnosis of herbicide injury. Search by visible plant symptoms, herbicide trade names, active ingredients, or herbicide site-of-action numbers. By MU Extension Weed Science, this is the iPhone and iPad version.