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