Pesticide and Manure Applicator Testing & Training Information

Deadline for Pesticide Applicators to Renew Certification Waived

Iowans who were certified through Dec. 31, 2019, can retain their status and now have until Dec. 31, 2020, to submit the testing or training required to renew a pesticide applicator certification.

This waiver comes after the Department canceled its in-person testing sessions through March 31, based on social distancing recommendations from the CDC. Applicators still need to meet pesticide certification standards by Dec. 31, 2020. They are encouraged to apply for recertification upon completion of the testing or training requirements.

The Iowa Department of Agriculture and Land Stewardship recently announced a new online self-service portal for processing pesticide business licenses and applicator certifications. 

Additional Options Available for New Pesticide Applicators

New Online System for Pesticide Licenses and Certification

IDALS is now doing drive-up testing for initial commercial pesticide applicators.  IDALS is also continuing the online testing for first-time agricultural pesticide applicators.  Please see the PSEP website ( for more information about these options.


2019-2020 Private Pesticide Applicator Recertification

Location:  Northeast Iowa Community College - conference room #1

Address:  8342 NICC Dr., Peosta, IA 52068

Dates & Times:  

January 14, 2020 - 9:30am or 1:30pm

February 20, 2020 - 1:30pm or 7:00pm

"Last Chance" April 15, 2020 9:00am at Dubuque County Extension office, 14858 West Ridge Ln, Dubuque, IA 52003

We have received word that the Iowa Department of Agriculture and Land Stewardship has extended the deadline to attend the 2019-2020 Private applicator Continuing Instruction Course to September 30, 2020. We will share this and additional information regarding pesticide applicator testing and training with the public in a press release and newsletters.

Fee:  $20.00 (cash or check only)

Phone:  (563) 583-6496          

Please arrive at least 10 minutes early for check in.

Commercial Applicator Training (2020)

"Certified commercial applicator" means a person, corporation, or employee of a person or corporation who enters into a contract or an agreement for the sake of monetary payment and agrees to perform a service by applying a pesticide but does not include a farmer trading work with another, a person employed by a farmer not solely as a pesticide applicator who applies pesticide as an incidental part of the person's general duties, or a person who applies pesticide as an incidental part of a custom farming operation. Iowa Code, Chpt. 206.2  CLICK HERE FOR REGISTRATION MATERIALS

Commercial Pesticide Application Training Email Notification Sign-Up

Dubuque County training:

Dubuque County Extension Office, 14858 West Ridge Lane (unless otherwise listed below)

2020 Dates:

        Spring 2020 

Commercial Ag Weed, Insect, and Plant Disease Management - Cat 1A,1B,1C,10: February 12, 2020 at 9am

Shade Tree Short Course - Cat 2, 3O, 3OT, 5, 6, and 10: February 25, 26 and 27, 2020 Ames. To register: Call (515) 294-6222 or

Seed Treatment - Cat 4,10: February 19, 2020 at 9am

Ornamental and Turf Applicators - Cat 3O, 3T, 3OT,10: March 4, 2020 at 9am

Certified Handlers - Cat H: March 11, 2020 at 9am

Aerial Applicators - Cat 11,10: Late Spring

         Fall 2020

Roadside, Forest, Aquatic Pest Management - Cat 2,5,6,10:  October 21, 2020 at 9am

Mosquito/Public Health Pest Management - Cat 7D,8,10:  October 28, 2020 at 9am

Ornamental and Turfgrass Applicators - 3O,3T,3OT,10:  November 4, 2020 at 9am

Fumigation - Cat 7C,10:  November 17, 2020 at 9am

Commercial Ag Weed, Insect, and Plant Disease - Cat 1A,1B,1C,10:  November 18, 2020 at 9am

Pest Control Operators - Cat 7A,7B,8,10:  December 2, 2020 at 9am 

NOTE:  Time listed is when the program starts.  Please arrive at least 10 minutes early for check-in.


IDALS Testing
Iowa Department of Agriculture and Land Stewardship (IDALS) conducts pesticide tests at the Dubuque County Extension Office throughout the year.

Dubuque County testing - 
Dubuque County Extension Office, 14858 West Ridge Lane, Dubuque

2020 Dates:

(Winter test) Tuesday, January 28, 2020, 10am - 2pm

Monday, April 20, 2020, 10am - 2pm

Monday, May 18, 2020, 10am - 2pm

Monday, June 15,  2020, 10am - 2pm

>No July or August testing dates are scheduled<

Monday, September 21, 2020, 10am - 2pm

Monday, October 19, 2020, 10am - 2pm

Monday, November 16, 2020, 10am - 2pm

>No December testing date scheduled<


Click here for Pesticide Applicator testing schedule



Click here for online Commercial and Confinement Site Manure Applicator Training

Commercial Manure Applicator Certification

Dubuque County certification:

Dubuque County Extension Office, 14858 W. Ridge Lane
Date: 01/8/2020  9am - 12:00pm
Registration: No

Confinement Site Manure Applicator Certification
Dubuque County certification -
FarmTek, 1440 18th Ave. SW, Dyersville, IA  52040
Date:  02/13/2020  1:30pm
Registration:  No Fee. No advance registration necessary.  Questions call 563-583-6496.

Re-shows are available on request after the initial showing.  Please call ahead to arrange a re-show.
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