Common Insects Found in Central Oregon

Leaf Chewers

The larval stage of the fall webworm.

Fall Webworm

Online Resource

Information on and management of the fall webworm
Peonies with bees.

Leafcutter bee

Article

Images and information about this pollinator.
Adult oblique-banded leafroller.

Leafroller

Online Resource

Information on and management of the leafroller and leaftier.
An adult pear sawfly.

Pear Sawfly

Online Resource

Information on and management of the pear sawfly.
Black vine weevil.

Root Weevils

Online Resource

Information on and management of root weevils.
Tomato hornworm feeding on a tomato plant.

Tomato Hornworm

Online Resource

Information on and management of the tomato hornworm.

Leafminers

The larva mine between the top and bottom layers of the leaf.  The larva was pulled out for photo to show it's size.

Aspen Leaf Blotch Miner

Online Resource

Management - How to control this insect

Leaf miner control (the use of insecticides) is usually not necessary on aspen or poplars. The damage is aesthetic damage and generally does not cause branch dieback or tree failure. Healthy plants can recover from heavy defoliation. Research shows that plants under environmental stress are more susceptible to leaf miner so keep plants in good health.
Adult leafminer.

Spinach Leafminer

Online Resource

Information on and management of the spinach leafminer.

Flower, Fruit and Seed Feeders

Sap Suckers

Winged and wingless aphids and aphid skin casts on the underside of a leaf.

Aphids

Online Resource

An online resource regarding pest management with Aphids. This resource describes the damage aphids can do to plants and how to prevent this from happening.
Oystershell scale covering the trunk of an aspen tree.

Oystershell scale

Online Resource

Information on and management of oystershell scale.
Pine Needle Scales. Note adult scale with an egg appearing from under the cover (pink) and the settled crawler in the upper left.

Pine Needle Scale

Online Resource

Information on and management of pine needle scale.
Twospotted spider mite adults and eggs.

Spider Mites

Online Resource

Information on and management of spider mites.

Trunk and Branch Borers

Mature adult mountain pine beetle.

Mountain Pine Beetle

Online Resource

Information on and management of the mountain pine beetle.
Adult sequoia pitch moth.

Sequoia Pitch Moth

Online Resource

Information on and management of the sequoia pitch moth.

Gall Makers

Gall forming in aspen twigs.

Poplar Twiggall Fly

Online Resource

Information on and management of the poplar twiggall fly.

Root, Tuber and Bulb Feeders

Onion maggot.

Onion Maggot

Online Resource

Information on and management of the onion maggot.
Black vine weevil.

Root Weevils

Online Resource

Information on and management of root weevils.

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