Resources

Here's a collection of links that may help you to identify just what it is that's bugging you. 

Pest Information:

UC IPM Pest Identification

Bugguide
National Pest Management Association Consumer Pest Identification Guide 

Weed Information: 
Washington State Noxious Weed List

Oregon State Noxious Weed List
Lawn Weed Identification Tool 

Other Information:
EPA Pesticides Page

Washington State Department of Agriculture

Oregon State Department of Agriculture 

  Thanks to Travis Ulrich, owner of Hayden Pest Control, for supplying several of these links!