Tree Pests is the outreach and education effort of the Missouri Invasive Forest Pest Council. The Council is a collaborative effort of several state and federal agencies to keep citizens informed of the latest invasive insect and disease threats to Missouri’s trees. Whether you have a single tree in your yard or acres of woodlands on your property, this site is for you.
The invasive species to be on the lookout for in Missouri are emerald ash borer, thousand cankers disease, Asian longhorned beetle, pine shoot beetle and gypsy moth. To learn more about these invasive species and some troublesome native species, see the Tree Pests publications listed below.
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News & articles
- Published: Wednesday, July 18, 2018
COLUMBIA, Mo. – University of Missouri Extension introduced a new mobile app to identify herbicide injury at its annual Pest Management Field Day on July 10. MU Extension weed specialist Mandy Bish says Herbicide Injury ID lets users send photos ...
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 ...
Although not yet detected here, thousand cankers disease (TCD) is a potentially fatal disease of black walnut, caused by the walnut twig beetle (Pityophthorus juglandis) and an associated fungus (Geosmithia morbida). TCD could easily spread to ...
In addition to all of the nonnative, invasive tree pests challenging the health of Missouri’s trees, there are several native insects and diseases that can cause serious harm. Although we cannot eradicate these pests from our natural ecosystems, it ...
Gypsy moth (Lymantria dispar) is a destructive, exotic forest pest that was accidentally introduced into the United States in 1869 by a man hoping to mate them with silkworms to create a hardier, more productive silk-bearer. When some of his gypsy ...
The pine shoot beetle (Tomicus piniperda) attacks new shoots of pine trees, which stunts the growth of the trees. The pine shoot beetle (PSB) might also attack stressed pine trees by breeding under the bark at the base of the trees. The beetles can ...
This video from Purdue University Extension describes how homeowners can use certain pesticide products for protecting ash trees against emerald ash borer.
Find comprehensive, accurate and timely information on issues related to the thousand cankers disease.
Learn about oak decline in this leaflet from the U.S. Department of Agriculture's Forest Service.
Find out how far is too far to move firewood to avoid transporting invasive pests and diseases to new areas.
Find out more about the Asian longhorned beetle on the U.S. Department of Agriculture's Animal and Plant Health Inspection Service website.