The following publications cover topics related to Tree Pests. For a complete list of MU Extension publications, visit the main Publications page.

Tree Pests: Emerald Ash Borer

New

Emerald ash borer is an invasive, wood-boring insect that infests and kills native North American ash trees. Learn the signs, symptoms and management of EAB and how you can slow the spread on the University of Missouri Extension Tree Pests site.

Tree Pests: Gypsy Moth

New

Introduction

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.

Tree Pests: Native Pests

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Introduction

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.

Tree Pests: Thousand Cankers Disease

New

Introduction

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).

Tree Pests: Asian Longhorned Beetle

New

Introduction

The invasive Asian longhorned beetle (ALB) hitchhiked to the United States nestled deep within hardwoods cut into crates and pallets and used to import goods from Asian countries.

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