Insects

Insects

IDENTIFICATION TOOLS

The following are insect species that are considered invasive to Nebraska.
Click any photo below to learn more about these species and what you can do to help.

MOST WANTED FOR REPORTING

NOT KNOWN

Asian Longhorned Beetle

Anoplophora glabripennis

Presence characterized by exit holes in tree, larval galleries under bark, or out-of-season yellowing of leaves.

NOT KNOWN

Brown Marmorated Stink Bug

Halyomorpha halys

Feeds on various crops. Leaves small necrotic spots on fruit and leaf surfaces.

NOT KNOWN

Cereal Leaf Beetle

Oulema melanopus

Damages grain crops by feeding on leaves. Markings on leaves resemble elongated slits.

MOST WANTED FOR REPORTING

KNOWN

Emerald Ash Borer

Agrilus planipennis

Wood boring insect that leaves D-shaped borer holes along tree trunks, and larval galleries under bark.

MOST WANTED FOR REPORTING

NOT KNOWN

Gypsy Moth

Lymantria dispar

Signs of presence are shot holes in leaves and foliage stripped from trees.

KNOWN

Japanese Beetle

Halyomorpha halys

Causes skeletonized leaves and defoliation of host plants. Root damage to lawns caused by the larvae.

KNOWN

Mountain Pine Beetle

Dendroctonus ponderosae

Bore holes in trees leaving sawdust. Causes blue stained wood from the beetle’s fungus.

NOT KNOWN

Pine Shoot Beetle

Tomicus piniperda

Causes wilting on new branch shoots, stunted tree growth. Larval galleries feed throughout the trees.

NOT KNOWN

Sirex Woodwasp

Sirex noctilio

Causes foliage to wilt and change color to red. Leaves resin beads from egg laying sites. Bores holes in tree.

NOT KNOWN

Thousand Cankers Disease of Walnut Trees

Geosmithia morbida

First causes yellowing of leaves and thinning foliage. Then, fungus kills localized areas, which causes nutrient disruption and branch dieback.