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University of Wisconsin-Extension

The Organic Vegetable Growers Virtual Toolkit for Pest & Disease Management

Written by Ariana Abbrescia Posted on February 24, 2026February 25, 2026
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Ready to level up your pest and disease management this growing season? Find a suite of online tools and helpful resources below to identify, monitor, and manage.

Pest & Pathogen Identification, Information, Research

UW-Madison Insect Diagnostic Lab

Send images and physical samples to identify insects

UW-Madison Plant Disease Diagnostics Clinic

Send images and physical samples to diagnose plant diseases

UW-Madison Vegetable Crop Entomology Program

Pest profiles, management recommendations, and research

UW-Madison Vegetable Pathology Program

Disease profiles, management recommendations, research, and weekly newsletter

Pest & Disease Monitoring, Scouting, and Forecasting

Commercial Vegetable Production in Wisconsin (A3422)

Pest scouting calendars sorted by crop

Vegetable Disease & Insect Forecasting Network (VDIFN)

Model real-time risk for 28 different vegetable pests and diseases across the Upper Midwest. Tool created by Dr. Amanda Gevens, Dr. Russell Groves, and Ben Bradford

Video Tutorial: www.youtube.com/watch?v=y3oqd7exFG0

VDIFN Tool: https://agweather.cals.wisc.edu/vdifn

Crop Risk Tool

In development, displays vegetable disease risk at multiple locations and can display a 14-day future forecast of risk. Tool created by Ben Bradford

Video Tutorial: https://www.youtube.com/watch?v=xJ707vRQkjE

Organic Vegetable Pest & Disease Management Recommendations

Midwest Vegetable Production Guide

Vegetable production information including fertility, variety, cultural, and pest management recommendations. Includes OMRI-listed and non-pesticide recommendations organized by seasonal timing.

UW-Madison Vegetable Crop Entomology Program

Pest profiles, management recommendations, and research

UW-Madison Vegetable Pathology Program

Disease profiles, management recommendations, research, and weekly newsletter

Cornell Organic Management Guides

Comprehensive organic crop production guides, including pest & disease management recommendations and product efficacy tables

Contacts and Technical Support

Dr. Russell Groves

Professor and Vegetable Entomology Extension Specialist

Phone: 608-262-3229
Email: groves@entomology.wisc.edu

PJ Leisch

Extension Entomologist & Director of UW Insect Diagnostic Lab

Phone: 608-262-6510
Email: pliesch@wisc.edu
Website: insectlab.russell.wisc.edu

Contact Extension Agriculture

Phone: (608) 480-5161
Contact Form: extension.wisc.edu/agriculture/ask-an-agriculture-question/

Dr. Amanda Gevens

Professor, Vegetable Pathology Extension Specialist, Associate Chair

Phone:608-890-3072
Email: gevens@wisc.edu

Dr. Brian Hudelson

Director of Diagnostic Services at UW Plant Disease Diagnostics Clinic

Phone: 608-262-2863
Email: hudelson@wisc.edu

Gardening at Home? Ask Your Gardening Question Here

Contact Form: hort.extension.wisc.edu/ask-a-gardening-question/

UW-Madison Extension Vegetable Outreach Team

NameTitleLocationEmail
Rue GengerEmerging and Specialty Crops Program ManagerStatewiderue.genger@wisc.edu
Ariana AbbresciaOrganic & Sustainable Agriculture Outreach SpecialistStatewideariana.abbrescia@wisc.edu
Kristin KrokowskiCommercial Horticulture Educator, ProfessorWaukesha Countykristin.krokowski@wisc.edu
Ann KowenstrotDiversified Vegetable and Emerging Crops EducatorKenosha, Racine Countieskowenstrot@wisc.edu
Emilee GaulkeDiversified Vegetable EducatorGreater Milwaukee Areaemilee.gaulke@wisc.edu
Tawonga ZakeyuDiversified Vegetable and Emerging Crops EducatorBarron, Burnett, Sawyer, Washburn Countiestawonga.zakeyu@wisc.edu

Please contact Ariana Abbrescia (ariana.abbrescia@wisc.edu), UW-Madison Extension Organic and Sustainable Agriculture Outreach Specialist, with questions.

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