Horticulture diseases and pests

Have a pest problem?

We can help with plant disease diagnosis, identification of unknown plants and insects and treatment

Learn more

Eventstab

Events

View all events

Garlic Production Workshop

Event date: Nov. 12, 2020

Event time: | 6:00 pm - 7:30 pm

Garlic is grown for culinary and medicinal purposes. It has antibiotic and antioxidant effects. Researches have shown that regular consumption of garlic reduces cholesterol and blood pressure. In this workshop, we will discuss about different aspects ...

Extension Master Gardener Fall 2020 (via Zoom)

Event date: Aug. 12, 2020 - Nov. 18, 2020

Kansas City, MO

We are happy that you are interested in becoming an Extension Master Gardener (EMG) volunteer with the University of Missouri Extension. The mission of the EMG volunteer Program is educational outreach and sharing research-based horticulture ...

Master Gardener Training in Adair County

Event date: Aug. 27, 2020 - Nov. 19, 2020

Kirksville, MO

Provides in depth horticulture training for Missourians who wish to spread their knowledge of gardening. Prepares volunteers for horticulture questions frequently asked by citizens around the state, based on unbiased research based gardening ...

Multi-County Hybrid Master Gardener Fall 2020 Training

Event date: Oct. 6, 2020 - Nov. 12, 2020

Held Tuesdays and Thursdays from October 6 - November 12. Provides in depth horticulture training for Missourians who wish to spread their knowledge of gardening. Prepares volunteers for horticulture questions frequently asked by citizens around the ...

View all events

News & articlestab

News & articles

View all news & articles

Report mystery seeds to the Missouri Department of Agriculture

Published: Tuesday, July 28, 2020

COLUMBIA, Mo. – Officials urge residents to report unsolicited packages of seeds delivered from foreign countries. Unknown seeds could introduce noxious weeds, pests, diseases and viruses.“This may be part of a business technique called ...

Expect high numbers of Japanese beetles this year

Published: Wednesday, July 8, 2020

COLUMBIA, Mo. – Japanese beetle populations are peaking throughout the state just as corn is silking, says University of Missouri Extension field crops entomologist Kevin Rice.Japanese beetles cause severe economic losses on farms and ...

Warm, wet weather helps 'dog vomit slime mold' thrive

Published: Wednesday, July 1, 2020

COLUMBIA, Mo. – Fuligo septica, also known as “dog vomit slime mold,” is the latest slimy woodland thing to slither into 2020’s wet spring and summer.When it first appears, this peculiar species of plasmodial slime mold looks like bright ...

Wet weather triggers mole activity

Published: Wednesday, June 17, 2020

COLUMBIA, Mo. – Follow the food.That is the mantra of moles as they follow their favorite food, earthworms, and tunnel throughout your yard.A molehill creates an upheaval of soil surrounding a vertical tunnel shaft, which often occurs after big ...

View all news & articles

Publicationstab

Publications

View all publications

Biology and Management of Japanese Beetle

Publication date: July 1, 2020

Japanese beetle were accidentally introduced from Asia to the eastern United States in 1916. Since then, they have established populations in 28 states with detections in an additional 13, becoming a primary insect pest species in many agricultural ...

Bees and Wasps

Publication date: April 1, 2019

The ability to sting, coupled with their great mobility, makes bees and wasps some of the most feared of all insects. Many species of bees and wasps are present in every geographic region of Missouri. These species vary in aggressiveness and other ...

Missouri Weed Seeds

Publication date: Nov. 1, 2018

Positive identification of pests, including weeds, is the first step in a sound integrated pest management program. Knowledge of plant morphological features, such as leaf and stem shape, flower type and color, and the presence of hairs make ...

Tree Pests: Emerald Ash Borer

Publication date: May 1, 2018

Emerald ash borer (Agrilus planipennis) is an exotic, invasive, wood-boring insect that infests and kills native North American ash trees, both in forests and landscape plantings. Just like the Dutch elm disease that killed our native American elm ...

Midwest Fruit Pest Management Guide: 2018

Publication date: Jan. 1, 2018

Revised annually, this guide provides pest management recommendations for commercial tree fruit, small fruit, and grape producers in Arkansas, Illinois, Indiana, Iowa, Kansas, Kentucky, Minnesota, Missouri, Nebraska, Ohio, Oklahoma, West Virginia and ...

Turfgrass Weed Control for Professionals (2020 Edition)

Publication date: Dec. 1, 2017

This guide provides weed identification and control information that turfgrass professionals can use to develop effective weed control programs for golf courses, athletic fields, sod farms, lawns and other turfgrass systems. The recommendations apply ...

View all publications

Resourcestab

Resources

View all resources

Managing the Japanese Beetle: A homeowner's Handbook (PDF)

The Japanese beetle (Popillia japonica Newman) is a highly destructive plant pest of foreign origin. It was first found in the United States in a nursery in southern New Jersey in 1916. In its native Japan, where the beetle’s natural enemies keep ...

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.

Emerald Ash Borer University

Emerald Ash Borer University is the collaborative effort of the USDA Forest Service, Michigan State University, Purdue University, and Ohio State University. EAB University serves as the nation's clearinghouse on all aspects of this destructive ...

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.

Herbicide Injury ID app (Google Play)

View all resources