Online powdery mildew database selected as standard reference

decrease font size  Resize text   increase font size       Printer-friendly version of this article Printer-friendly version of this article

For the past decade, Washington State University plant pathologist Dean Glawe has been painstakingly compiling information on the world’s Erysiphales fungi. Farmers and gardeners the world over know Erysiphales as the cause of powdery mildew, among of the world’s most damaging plant diseases. Powdery mildews attack apples, cherries, grapes, hops, wheat, onions, strawberries, gourds, melons and many other economically important crops. Growers spend millions of dollars annually trying to control them, applying more fungicides to control powdery mildews than any other plant pathogen.

Devising effective, environmentally safe and sustainable tactics for controlling powdery mildews is hampered by the fact that there are nearly 700 species that vary tremendously in their life cycles, the plant species they attack, and their capacity to cause damage. In order to provide diagnosticians and researchers with better tools to identify these fungi, Glawe led the development of the web-based Erysiphales Database. The database enables users to identify powdery mildews, to find information on their host plants, and provides links to online scientific references. The database is available at

The American Phytopathological Society, the world’s largest professional society of plant pathologists, recently chose Glawe’s database as a standard reference for authors submitting papers on powdery mildews to the journal Plant Disease. “Recognition of this database by the American Phytopathological Society is a testament to Dr. Glawe’s stature and reputation as a leading expert on this economically important group of fungi,” said Hanu Pappu, professor and chair of the WSU Department of Plant Pathology.

Glawe, a professor in the WSU Department of Plant Pathology based at the University of Washington, is well known for his research on powdery mildews. He recently authored an invited review article in The Annual Review of Phytopathology that summarized powdery mildew taxonomic research. The Erysiphales Database represents his third foray into producing online mycological resources. Previously he developed the web-based Pacific Northwest Fungi Database ( with the goal of providing information on plant-associated fungi in the region. He also served as founding editor of North American Fungi, the world’s first online mycology journal,

Buyers Guide

Doyle Equipment Manufacturing Co.
Doyle Equipment Manufacturing prides themselves as being “The King of the Rotary’s” with their Direct Drive Rotary Blend Systems. With numerous setup possibilities and sizes, ranging from a  more...
A.J. Sackett Sons & Company
Sackett Blend Towers feature the H.I.M, High Intensity Mixer, the next generation of blending and coating technology which supports Precision Fertilizer Blending®. Its unique design allows  more...
R&R Manufacturing Inc.
The R&R Minuteman Blend System is the original proven performer. Fast, precise blending with a compact foot print. Significantly lower horsepower requirement. Low inload height with large  more...
Junge Control Inc.
Junge Control Inc. creates state-of-the-art product blending and measuring solutions that allow you to totally maximize operating efficiency with amazing accuracy and repeatability, superior  more...
Yargus Manufacturing
The flagship blending system for the Layco product line is the fully automated Layco DW System™. The advanced technology of the Layco DW (Declining Weight) system results in a blending  more...
Yargus Manufacturing
The LAYCOTE™ Automated Coating System provides a new level of coating accuracy for a stand-alone coating system or for coating (impregnating) in an automated blending system. The unique  more...
John Deere
The DN345 Drawn Dry Spreader can carry more than 12 tons of fertilizer and 17.5 tons of lime. Designed to operate at field speeds up to 20 MPH with full loads and the G4 spreader uniformly  more...
Force Unlimited
The Pro-Force is a multi-purpose spreader with a wider apron and steeper sides. Our Pro-Force has the most aggressive 30” spinner on the market, and is capable of spreading higher rates of  more...
BBI Spreaders
MagnaSpread 2 & MagnaSpread 3 — With BBI’s patented multi-bin technology, these spreaders operate multiple hoppers guided by independent, variable-rate technology. These models are built on  more...

Comments (0) Leave a comment 

e-Mail (required)


characters left


Made of high quality 304 stainless steel, the Quickveyor is one of the strongest trailers on the market. It’s belt ... Read More

View all Products in this segment

View All Buyers Guides

Feedback Form
Feedback Form