The PAT CHAT Newsletter

Below is an archive of past PAT CHAT Newsletters. The newsletter comes out four times a year. If you would like email notification of new newsletters please send a blank email to Then confirm your request in the confirmation email sent to you.

June 2020

February 2020

November 2019

August 2019

May 2019

February 2019

November 2018

August 2018

  • Help Track and Identify Brown Marmorated Stink Bugs and Ticks with New Apps
  • Comments Wanted on Updated Aquatic Invasive Species Management Plan
  • Black Widows: The Hermits of Door County
  • What Is New At The UW PAT Program
  • Waterhemp and Palmer Amaranth: An Interview with Dr. Rodrigo Worle
  • Cinch Bug: How a Tiny Insect Helped the Rise of Dairy in Wisconsin
  • Recent Court Decision Bans Agricultural Use of Chlorpyrifos, Again

May 2018

  • Manual Updates and Revisions for 2018
  • English/Spanish Videos on Chemical Safety and WPS Greenhouse Worker Safety Now Available
  • 2018 Wisconsin Cropping Systems Weed Science Survey – Where are we at?
  • Emerald Ash Borer Quarantine is Now Statewide
  • Dicamba / Auxin Training Update
  • Wisconsin Clean Sweep
  • Pesticide Misuse Cases For 2017
  • Online Courses and Registration Instructions

February, 2018

  • Glyphosate “Not Likely” to Cause Cancer in Humans According to the EPA
  • Turf, Landscape and Natural Areas Pesticide Applicators: Don’t Forget the Landscape Registry!
  • EPA Open Comment Period for Neonicotinoid Insecticides
  • WPS Respiratory Protection Guide Available
  • Reciprocal Applicator Licensing

November, 2017

  • New Study Manuals for 2018
  • How to Become a Certified Crop Advisor
  • UW Pesticide Applicator Training (PAT) Training / Review Commercial Season
  • Dicamba Products Registered for Use over Dicamba Tolerant Soybean
  • Registration of The ZAP Male Mosquito
  • Pesticide Applicator Training with Simultaneous Spanish.

August, 2017

  • Rain and Pesticide Storage Concerns
  • New Genetic Tool for Corn Rootworm Control One Step Closer to Use
  • Dicamba: in Wisconsin.
  • Weathering the Emerald Storm: EAB in Wisconsin
  • Brown Marmorated Stink Bug
  • Reminder of No Atrazine Use after July 31
  • CREP Deadline Approaching; Flooded Lands Good Candidates

May, 2017

  • Isoxaflutole Use Limited to 12 Wisconsin Counties
  • Bulk Orders of A3646 Pest Control In Wisconsin Fields
  • WPS – Employee access to application information
  • DATCP Proposes Special Local Need Registration for Two Pesticides in Wisconsin
  • Water Soluble Packets (WSP)
  • Know Your Enemy: The Importance of Proper Pest Identification
  • Corn Rootworm Resistance to Bt Corn
  • Times are Changing, but Illegal Pesticide Residues Remain the Same
  • Pesticide Labels from the Internet

February, 2017

  • New Rules for Pesticide Certification and Training
  • A Great Question – “Is there a list of hazardous pesticides?”
  • Pest Management in Wisconsin Field Crops, A3646
  • Four New Pesticide Safety Training Manuals in 2017
  • Recycle Your Empty Pesticide Containers — For Free!
  • EPA Calls for Stronger Safety Measures for Paraquat Use
  • Sulfoxaflor is back on the Market with Limited Uses
  • New Technology and New Things to Think About
  • EPA Pesticide Registration Test Guidelines.

November, 2016

  • 2017 Training & Review Schedule
  • Pesticide Applicator Training With Simultaneous Spanish Translation
  • New Revisions for 2017
  • New Mode of Action Being Investigated – RNA Inhibition
  • Now Available, an Aquatic & Mosqtuito, Category 5.0 Online Course
  • Brown Marmorated Stink Bug Found in Wisconsin Ag Crops for the First Time
  • Pesticide Resistance Part II: Managing Resistance
  • Onlline WPS Train the Trainer Online Course
  • New Worker Protection Standard “How to Comply” Manuals Available Online
  • EPA Registering Dicamba Formulation for Use in Dicamba Tolerant Soybeans

August, 2016

  • Coming Soon, Aquatic & Mosqtuito Onlline Course
  • Drone Use in Agriculture and New FAA Regulations
  • Certification and Training Update
  • Pesticide Resistance Part I: Some Basics.
  • Wild Parsnip, an expanding problem along roadsides in Wisconsin
  • Poly Tanks
  • Poison Control Center’s Annual Report
  • EPA Proposes to Strengthen Requirements On Use of Paraquate to Prevent Poisonings
  • Farmers Considering Ditching or Tilling Need to Check Wetland Rules First
  • Drift Reports Around the New Technology

May, 2016

  • EPA Extends Comment Period on Dicamba Proposal
  • Draft Risk Assessments for Five Pesticides, Including Aldicarb and Coumaphos, Available for Public Comment
  • The Name Game in the Weed World
  • Potato Growers May be Allowed to Use Linex Herbicide on Sandy Soils
  • EPA Provides List of Pesticides to Fight Varroa Mites in Honey Bee Hives
  • The Changing Faces of Pesticide Labels
  • Signs, Signs, Everywhere There’s Signs
  • Pesticide Applicator Certification and Licensing in Wisconsin
  • Zika: An Issue in Wisconsin?

February, 2016

  • Pesticide Service Container Clarification
  • Mean High Watermark, What Does It Mean?
  • What is the Point of a Test
  • Rodent Bait Placement
  • Agricultural Use of Chlorpyrifos Could End
  • An Agreement Between Bayer Crop Science and DATCP on Isoxaflutole Has Been Met
  • Urban Chemigation and Misting Systems
  • Turf, Landscape and Natural Areas Pesticide Applicators: Don’t Forget the Landscape Registry!
  • WPS Annual Training, What Needs to be Covered
  • DriftWatch: A Tool for Applications to Help Avoid Drift Issues
  • Wisconsin’s Pollinator Plan Comment Period is Open

November, 2015

  • Upcoming Training Season for 2016
  • Certification & Training Rule Changes, in a Little More Detail
  • The Creation of Wisconsin’s First Pollinator Protection Plan is Under Way
  • Resources for Using Intergrated Pest Management in Schools
  • The Pitfalls of Record keeping
  • Notifying Your Clients About Pesticide Applications
  • WPS Update

August, 2015

  • New Certification & Training Rules Proposed by EPA Will Lead to Changes in Wisconsin’s Rules
  • The Pesticide Applicator Certification System (PACS) Phone Number is Going Away
  • EPA Solicits Proposals for Integrated Pest Management in Schools
  • Active Ingredient Propoxur May be Cancelled
  • Need Your Test Number to Get Your Results Faster
  • The Worker Protection Standard (WPS)

Newsletters will be available four times a year. If you would like notification of new newsletter please send a blank email to Then confirm your request in the confirmation email sent to you.