Pest Leaflet Series
The Pest Leaf Series (PLS) was initiated in the WSU Puyallup Plant & Insect Diagnostic Laboratory to produce brief "bulletins" on problems frequently received at the laboratory, for which no formal extension bulletins or other readily available information exists. The PLS covers insect problems, diseases, abiotic problems, and other miscellaneous situations on which we are regularly asked to provide information.

We currently have the following Pest Leaf Series available as PDF documents. You must have Adobe Acrobat Reader® software installed on your computer in order to view, print and save PDF files. To get more information about downloading Adobe Acrobat Reader®, click here.

• PLS 1 Rat-Tailed Maggots
• PLS 2 Common Cerambycids of Washington
• PLS 3 Most Common Butterflies in the PNW
  
• PLS 4 Horntail Wasps
• PLS 5 June Beetles
  
• PLS 6 Pseudoscorpions
• PLS 7 March Flies
• PLS 8 Snakeflies
• PLS 9 Mantids in Washington
• PLS 10 Cupboard Beetles
• PLS 11 Oystershell Scales
• PLS 12 Bumblebees
• PLS 13 European Paperwasp
• PLS 14 Soldier Beetles
  
• PLS 15 Millipedes in Gardens
  
• PLS 16 Silverfish & Firebrats in the Home
• PLS 17 Filth Flies in Residential Areas
• PLS 18 Apple Leaf Curling Midge
• PLS 19 Pavement Ants
  
• PLS 20 Black Specks on Curtains, etc. (Sphaerobolus)
  
• PLS 21 Oribatid Mites
• PLS 22 Click Bettles/Wireworms
  
• PLS 25 Wood boring Pests in Firewood
  
• PLS 27 Sap Beetles
  
• PLS 28 Bagworms
  
• PLS 30 Drainflies (Moth Flies)
  
• PLS 31 Blowflies, Cluster flies, & Screw-worm Flies
  
• PLS 33 Golden Tortoise Beetle
  
• PLS 34 Small Ashy Gray Ladybird Beetle
  
• PLS 35 The Giant Water Bug
  
• PLS 36 Thrips
• PLS 37 Raspberry Sawfly
• PLS 39 Nematodes
• PLS 41 Longhorn Beetle Characteristics
• PLS 42 Crickets: Prevention and Management
• PLS 44 Scavenger Beetles and Fungus Beetles
• PLS 45 Chironomid Midges
• PLS 46 Ichneumonid Wasps
• PLS 48 Sphinx Moths (Hummingbird Moths)
  
• PLS 50 Tick Talk About Lyme Disease
  
• PLS 51 Bark Beetles
  
• PLS 52 House Dust Mites
  
• PLS 53 Humpbacked Flies
  
• PLS 54 Woolly Bears
  
• PLS 55 Banded Alder Borer
  
• PLS 56 Rove Beetles
  
• PLS 57 Silkworm Moths
  
• PLS 58 Fowl Mites
  
• PLS 59 Pea Moth
• PLS 60 Cypress Tip Moth
  
• PLS 61 Stink Bugs
  
• PLS 62 Plant Feeding Mites
• PLS 63 Scale Insects
  
• PLS 64 Sawflies
  
• PLS 65 Dock Sawfly
  
• PLS 67 Cherry Bark Tortrix
  
• PLS 75 Winter Moth
  
• PLS 82 Big Eyed Bug
  
• PLS 83 Hover or Syrphid Flies
  
• PLS 84 Green Lacewing
  
• PLS 85 Lady Beetles
  
• PLS 86 Minute Pirate Bug
  
• PLS 88 Crab Spiders
  
• PLS 89 Eriophyid Mites
  
• PLS 90 Seed Bugs in Homes
  
• PLS 91 Jumping Spiders
  
• PLS 93 Centipedes
• PLS 94 Bedbugs
  
• PLS 95 Leafhoppers & Spittlebugs
• PLS 105 Carrion Beetles
• PLS 106 Aphids
  
• PLS 107 Steatoda Spiders
• PLS 108 Tarantulas in the PNW
• PLS 109 Codling Moth
  
• PLS 110 Human Lice
• PLS 111 Asian Cerambycid Beetle
  
• PLS 112 Orchard Mason Bee
  
• PLS 113 Sowbugs & Pillbugs
  
• PLS 114 Asian Lady Beetle
  
• PLS 115 Water Conservation Techniques for Established Lawns West of the Cascades (pdf)
• PLS-116 How to Identify or Misidentify the Hobo Spider
• PLS 117 Fleas and Flea Control
• PLS 118 Oak Leaf Phylloxera
• PLS 119 Millipedes: A Household Nuisance
• PLS 120 Rhododendron Lacebug
• PLS 121 Pest Management for Prevention and Control of Mosquitoes with Special Attention to West Nile Virus
  

Note: We are still in the process of updating documents. Please check back regularly to see if we have added additional documents. Thank you.