Also see pest management sections under specific crops.

“An ounce of prevention is worth a pound of cure” (B Franklin, 1706-1790). Pest prevention is a central component of integrated pest management and organic pest management strategies. Crop rotation and crop planning (i.e. timing and spacing), good nutrient and water management, enhancing natural enemies and choosing disease or insect resistant varieties will enhance the resilience of your farm. When these methods are insufficient it is sometimes necessary to use natural or synthetic pesticides to manage pests well enough to produce high quality crops. Insect, disease and weed management resources are highlighted below.

Biodiversity

    OSU Farmscaping for Beneficials Program - OSU, the Xerces Society and Oregon Tilth have initiated a partnership to develop a grower-based program in conservation biological control (CBC) and pollinator conservation.

    Biodiversity Conservation: An Organic Farmer’s Guide - The goal of this guide is to increase the use of organic farming practices and other land management techniques that conserve biodiversity and the natural resources of organic farming systems, and to help farmers and ranchers comply with the NOP Rule.

    The Xerces Society for Invertebrate Conservation - The Xerces Society is a nonprofit organization that protects wildlife through the conservation of invertebrates and their habitat. For forty years, the Society has been at the forefront of invertebrate protection worldwide, harnessing the knowledge of scientists and the enthusiasm of citizens to implement conservation programs.

      Pest Management - general

        OSU Integrated Plant Protection Center - The IPPC mission is to be one of the leading research and extension organizations nationally and internationally in integrated pest and production management (IPPM) systems.

        Pest and Crop Models -  This website brings together US weather data and plant pest and disease models to serve many decision support needs in agriculture. Currently this site provides over 80 degree-day and 21 hourly weather-driven models serving many IPM, regulatory, plant biosecurity, biological control, and conservation uses for the full USA, with emphasis on IPM needs for the Western States.

          Photo Collections

            PNW Insect Management Handbook - This handbook is intended as a tool for making decisions regarding the control and management of important insect pests in the Pacific Northwest.

            This handbook is intended as a tool for making decisions regarding the control and management of important insect pests in the Pacific Northwest. - See more at: http://pnwhandbooks.org/insect/#sthash.x2aoCBbB.dpuf

            This handbook is intended as a tool for making decisions regarding the control and management of important insect pests in the Pacific Northwest. - See more at: http://pnwhandbooks.org/insect/#sthash.x2aoCBbB.dpuf

              Insect Photos - This page is devoted to information for identifying and managing insect pests.

              Pacific Northwest Weed Management Handbook - This handbook is designed as a quick and ready reference for weed control practices and herbicides used in various cropping systems or sites in Idaho, Oregon, and Washington. This handbook will be useful to Extension agents, company field representatives, commercial spray applicators and consultants, herbicide dealers, teachers, and producers.

              Vegetable Insect Pest Photos - This site is dedicated to Integrated Pest Management for the home vegetable garden. IPM uses four key strategies to control pest damage while fostering environmental awareness and stewardship, such as plant genetic resistance to pests and disease, biological control (the use of one organism to control another), environmental and cultural (favorable for the plant, unfavorable for the pest), chemical - the last resort.

              UC Weed photo gallery - The UC IPM Weed Photo Gallery includes many, but not all, weed species commonly found in California farms and landscapes.

              International Survey of Herbicide-Resistant Weeds - United States weed photo gallery by species.

              Weed Science Society of America - Alphabetical list of weed identification. Weed Images is a joint project of the University of Georgia’s Center for Invasive Species and Ecosystem Health and the Weed Science Society of America.

              Pests and Beneficials: photo collection - Photo collection by Debbie Roos.

                Insect, Mite & Rodent Management

                  PNW Insect Management Handbook - This handbook is intended as a tool for making decisions regarding the control and management of important insect pests in the Pacific Northwest. This handbook is intended as a tool for making decisions regarding the control and management of important insect pests in the Pacific Northwest. Originally, it was written for commercial growers, county extension agents, consultants, field and nursery staff, and chemical industry representatives. - See more at:http://pnwhandbooks.org/insect/#sthash.cJ0YsNMk.dpuf

                      A Guide to Natural Enemies in North America - This guide provides photographs and descriptions of biological control (or biocontrol) agents of insect, disease, and weed pests in North America. It is also a tutorial on the concept and practice of biological control and integrated pest management (IPM).

                      A Guide to Ecological Strategies - This publication highlights ecological strategies that improve your farm’s natural defenses and encourage beneficial insects to attack your worst pests. Learn about the principles of ecologically based pest management and the strategies of farmers around the world to address insect problems.

                      How to Reduce Bee Poisoning from Pesticides - Commercially managed honey bees pollinate a variety of crops in the West Coast region of the United States, including almonds, tree fruits, berries, kiwis, cotton, cucurbits, and crops grown for seed. This activity is economically significant.

                      Using Entomopathogenic Nematodes for Crop Insect Pest Control - Topics covered include the life cycle of entomopathogenic nematodes; how they control insect pests; obtaining, using, and storing; soil conditions necessary; application preparation, equipment, and rates; pesticide safety; and websites that provide more specific information.

                      Pocket Gophers in Agricultural Crops - This publication describes activities designed to reduce damages by pocket gophers to hay, grain, and orchard crops.

                      Controlling Moles - Moles belong to the mammalian order Insectivora, the insect eaters. Often, however, they are lumped incorrectly with the rodents, which include mice, rats, squirrels, and other gnawing mammals in the order Rodentia. Moles are found throughout the eastern half of the United States and along the Pacific Coast.

                        Plant Disease Management

                          PNW Plant Disease Management Handbook - This handbook is intended as a ready reference guide to the control and management tactics for the more important plant diseases in the Pacific Northwest. This has not been made to include all of the plant diseases that could possibly occur in the Pacific Northwest.

                            Weed Management

                            PNW Weed Management Handbook - This handbook is designed as a quick and ready reference for weed control practices and herbicides used in various cropping systems or sites in Idaho, Oregon, and Washington. This handbook will be useful to Extension agents, company field representatives, commercial spray applicators and consultants, herbicide dealers, teachers, and producers.

                            Weed ‘Em and Reap: Video - OSU videos of weed control tools and reduced tillage systems in use on farms.

                            OSU Herbarium - The Oregon State University Herbarium houses approximately 405,000 vascular plant, bryophyte, algal, and fungal specimens. The collections are worldwide in scope, with a focus on the state of Oregon and the Pacific Northwest.

                            Perennial Weed Biology and Management - Perennial plants live at least 2 years; some live for decades. Most perennial weeds reproduce both by seed and by the spread of energy-storing vegetative parts, such as roots or tubers. This combination of reproductive mechanisms makes management of perennial weeds difficult. By understanding how perennial weeds reproduce and spread, you will be better able to plan a successful weed management strategy.

                            Steel in the Field: A Farmer's Guide to Weed Management Tools - Weed control demands time, labor and expense for every farmer every year. This publication shows how today's implements and techniques can control weeds while reducing—or eliminating—herbicides.

                              Biology and management of specific weeds: Oregon State University & Washington State University (note, some publications are out-of-date and for educational purposes only)

                              African Rue

                              Annual and Perennial Sowthistles Bedstraw

                              Bighead Knapweed

                              Blackberry Blackberry
                              Blackgrass Blue Mustard Buffalobur (Solanum rostratum Dunal)
                              Bulbous Bluegrass Common Groundsel

                              Common and German Velvetgrass

                              Creepign Buttercup Curly Dock and Broadleaf Dock Death Camas
                              Distaff Thistle Downy Brome Dwarf Snapdragon
                              Dwarf Woad Field Bindweed Biology and Management Field Horsetail and Related Species
                              Giant Hogweed Gorse (Ulex europaeus L.) Hawkweeds
                              Hedgeparsley Hoary Cress and Related Whitetops Indigobush
                              Johnsongrass Knapweed Kochia
                              Longspine Sandbur Loosestrife (Lythrum salicaria L.) Mediterranean Sage (Salvia aethiopis L.)
                              Milk Thistle Mouse-Ear Hawkweed Poison Oak and Poison Ivy
                              Puncturevine (Tribulus terrestris) Purple and Iberian Starthistle Red Sorrel
                              Rupturewort Rush Skeletonweed Russion Thistle
                              Saltmeadow Cordgrass Scotch Broom Short-Fringed Knapweed
                              Silverleaf Nightshade Skeletonleaf Bursage  Slenderflower, Italian & Plumeless Thistle
                              Small Bugloss Squarrose Knapweed St. Johnswort
                              Sulfur Clinquefoil Syrian Bean-Caper Tansy Ragwort
                              Texas Blueweed The Speedwells Tuber Oatgrass
                              Velvetleaf Western Wildcucumber Wild Carrot
                              Wild Chervil Wild Four O'Clock Wild Garlic
                              Wild Proso Millet Yellow Starthistle Yellow Toadflax & Dalmation Toadflax