Pests, Plant Diseases, and Weeds

Pests and Plant Diseases

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Onion Thrips

The onion thrips, Thrips tabaci Lindeman, is the most destructive insect pest of onions in Washington State. This publication looks at how Thrips can damage onion plants, cause the production of small ...
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Overwintered Honey Bee Nucleus Colonies: Big Solutions in Small Packages

This publication describes how commercial and backyard beekeepers can minimize colony losses and related problems by establishing nucleus colonies.

Reviewed by WSU specialist W.S. Sheppard. ...

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Pacific Northwest ( PNW ) Insect Management Handbook

Oregon Download
A comprehensive guide to insect management in commercial crops and environments and in home landscapes and gardens in the Pacific Northwest. Covers pesticide safety and toxicity, protecting bees, adjuvants, mixing tables, calibration, and biological control. Other sections cover a wide variety of agricultural and nonagricultural products such as commercial vegetables, small fruit, turf and ornamentals, hay and pasture, grains, seeds, home gardens, greenhouses, livestock, poultry, household, and public health. Each section describes pests, the damage they do, and recommended management.
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Pacific Northwest ( PNW ) Plant Disease Management Handbook

A comprehensive guide to plant disease management in the Pacific Northwest. Visit the companion site for updates and ordering information. https://catalog.extension.oregonstate.edu/plant
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Pacific Northwest Wildlife Management Basics for Pesticide Applicator Licensing

This training manual is for pesticide applicators and/or consultants seeking a pesticide license category for managing problem wildlife in agricultural or urban environments.
$16.50

Pear Slug

When is a slug not a slug? In this case when it's a shiny black sawfly. This insect, related to bees, ants, and wasps, favors pear and cherry, but attacks plum, hawthorn, quince, buttonbrush, and mou ...
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Pest Management Guide for Grapes in Washington

This guide is now available in electronic format only.

Guide to control of diseases, insects, weeds, and vertebrate pests on commercial grapes. Weed controls - both soil-active and foliage-applied herbicides - are outlined for new and established plantings. Disease and insect controls are coordinated to pest and crop stage.
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Pest Management Study Manual for Pest Control Operators

This manual is intended to help beginning pest control operators prepare for Washington State pesticide licensing exams.
$23.10

Pest Watch: Brown Marmorated Stink Bug (Home Garden Series)

This Pest Watch fact sheet provides information about brown marmorated stink bugs in Washington State so that concerned citizens can accurately identify these pests and take appropriate management act ...
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Pest Watch: California Fivespined Ips (Home Garden Series)

This Pest Watch fact sheet on the Califonia Fivespined Ips, a pine bark beetle that has been found for the first time in Washington State, offers useful information on its history, distribution, and l ...
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Pest Watch: European Chafer (Home Garden Series)

This Pest Watch fact sheet provides information about how to identify and manage European chafer beetles that feed on turf and cereal crops during their larval stage. Because this pest has been confir ...
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Pest Watch: Lily Leaf Beetle (Home Garden Series)

The lily leaf beetle (LLB) was recently discovered in King County, Washington State, infesting landscaped lily plants. LLB is a highly destructive pest of cultivated lilies and can also infest native ...
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Pesticides: Learning About Labels

Pesticides carry labels because the information is vital to your safety and important for proper application. The fact sheet provides a sample label, then walks you through the different sections, exp ...
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Pesticides: Safe Handling

Think of safety first when handling chemicals around the house. When dealing with liquid soaps, furniture polish, bleach, antifreeze, or chemical pesticides, treat all as hazardous. This guide offers ...
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Physiological Leaf Roll of Tomato

A fact sheet prepared by The Pacific Northwest Vegetable Extension Group (http://mtvernon.wsu.edu/path_team/vegpath_team.htm), which includes specialists from the University of Idaho, Oregon State Un ...
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Plant Problem Diagnosis Home and Ornamental Landscape

Question form for growers or gardeners to fill out and send with problem sample (leaves, bark section, or roots) or take to Master Gardener clinics. Identifying and understanding your plant problem is ...
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Plant-parasitic Nematodes Affecting Small Grain Cereals in the Pacific Northwest

Discusses several species of plant-parasitic nematodes that occur where small-grain crops are produced in the Pacific Northwest. Covers nematode biology, symptoms of injury, yield constraints, man ...

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Potato Leaf Roll

Online Only

Causes, symptoms, and management for potato leaf roll, a viral disease which is particularly problematic in the production of late potatoes. Replaces EM2704. ...

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Potato Psyllid Vector of Zebra Chip Disease in the Pacific Northwest: Biology, Ecology, and Management

Zebra chip is a destructive disease of potatoes first recorded in the Pacific Northwest in 2011. The region's experts provide information on the bacterium, vector biology, damage from both vector and ...
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Potato Virus Y and Organic Potatoes in Western Washington

Is Potato virus Y (PVY) more widespread in organically-managed potato fields? Are there incidence of PVY in garden store outlets? Management and tips here! ...
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Powdery Mildew in Eastern Washington Commercial Grape Production: Biology and Disease Management

There are few plant diseases that have the same combination of international distribution and importance as grapevine powdery mildew (PM), which is present almost anywhere that susceptible grape varieties are grown.
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Powdery Mildew in Western Washington Commercial Grape Production: Biology and Disease Management

There are few plant diseases that have the same combination of international distribution and importance as grapevine powdery mildew (PM), which is present almost anywhere that susceptible grape varieties are grown.
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Powdery Mildew on Sugar Beet: Importance, Identification, and Control

Powdery mildew on sugar beets can be particularly severe in arid climates, causing sugar yield losses of up to 35%. This publication describes the pathogen, its symptoms, the disease cycle and epidemi ...
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Preplant Soil Fumigation and Alternatives for Berry Production

Washington berry growers often fumigate soil prior to planting to control soilborne diseases, plant-parasitic nematodes, and weeds. The US EPA is phasing in new regulations on many of the common soil ...
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Private Applicator Pesticide Education Manual

Covers federal and Washington State pesticide laws, pesticide formulations, label information, pesticide hazards and health concerns, safe use of pesticides to protect people, the environment, nont ...

$23.10

Proactive Approaches for Controlling Recombinant Strains of Potato virus Y in Western Washington

Recombinant strains of Potato virus Y (PVY) were detected in western Washington in 2012 and 2013: learn proactive measures that can be taken. ...
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Production of Brassica Seed Crops in Washington State: A Case Study on the Complexities of Coexistence

The purpose of this publication is to inform Brassica growers, industry members, university researchers, extension specialists, and extension educators about crucial aspects of the Brassica seed indus ...
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Protecting Honeybees Against Yellowjackets

Yellowjackets are usually beneficial because they kill many insect pests. However, some species, such as the western yellowjacket (Paravespula pennsylvanica), the common yellowjacket (P. ...

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Public Health Pest Control

Covers basic pest identification and biology information on insect and rodent pests that cause disease or discomfort in humans. Authors deal specifically with mosquitoes, flies, fleas, lice, bed bugs, cockroaches, wasps, yellowjackets, ticks, mites, spiders, and rodents. Pesticide application and equipment preparation are discussed at length. Specific examples walk you through calibration of different types of spray equipment, with attention to speed, nozzles, pressure, and spray width. This bulletin contains study information for the Public Health Pest Control exam administered by the Washington State Department of Agriculture. Text and illustrations.
$12.65