Spore Trap Network

Description

University of Idaho and industry partners utilize spore trap networks and molecular diagnostics to detect airborne spores of potato pathogens in southern Idaho. These traps detect spores of pathogens that cause late blight, early blight, white mold, brown spot and grey mold. Results are disseminated weekly.

Impacted Crops

Potatoes, onions, sugar beets, grapes, hops

Who is Involved

Contact

JAMES WOODHALL
Assistant Professor, Plant Pathologist
College of Agricultural and Life Sciences
Entomology, Plant Pathology and Nematology
University of Idaho, Parma Research and Extension Center
Ph. (208) 722-6701 | jwoodhall@uidaho.edu

2022-2023 Spores Detected

Posted on
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By James Woodhall
Although spores were detected, no diseased plants were reported for Idaho in 2022 or 2023. There were no spore detections for 2020 or 2021.

Spore Trap Specific Pathogen Data

Select year Select site

Nearest WX station:  

 P. Infestans (Late Blight) Risk Levels
in the Last 16 Days		Other Potato Pathogens Detection Events
in the Last 16 Days
DateSpore detection
(fg/ul)		Nearest WX station CHP
(hours above 80% RH)		MPM RiskOverall Risk
(spore + wx)		A. Solani
(Early Blight)

Color Key

RiskSpore Risk AssessmentWeather Risk Assessment
Low No spores detected this week No day with a CHP observed
(10 hours at RH 80% or more)
Elevated No spores detected this week, but
have been detected previously in the season		 One day with a CHP observed
Moderate Spores detected at least one day this week Two consecutive days each with CHPs
High Spores detected over two consecutive weeks Two consecutive weeks each with two consecutive CHP days
Severe Visual disease symptoms present Active disease confirmed in the area