Weed Workshop

February 23, 2023
College of DuPage
Glen Ellyn, IL

The IGIA Growers Committee has partnered with the experts at Purdue Horticulture to provide the education your team needs before the next growing season.  We’ve compiled a comprehensive agenda to provide both new and seasoned employees with a brush-up on techniques to manage weeds in the nursery. 

Join us from 8:30am - 3:30pm at the College of DuPage. Lunch will be served and is included in the cost of registration. Seating is limited and pre-registration is required. 


8:30 - Check-In / Light Breakfast
9:00 -
Session #1
10:00 -
Session #2
12:00 - Lunch
12:45 -
Session #3
1:45 -
2:00 - Session #4
2:45 - Session #5
3:30 -
Event concludes


Kyle Daniel, Nursery and Landscape Specialist, Purdue University, Department of Horticulture & Landscape Architecture
Aaron Patton, Professor of Horticulture, Purdue University, Department of Horticulture & Landscape Architecture


  • Weed ID and understanding weed pressure (60 minutes)
  • Science of how the chemicals work related to woody plants to herbaceous plants (15 minutes)
  • Help in developing a rotation program for pre-emergents (90 minutes)
    • Residual effects of rates used – determine proper rate for spraying
    • Common sign or signals of when to spray to prevent weeds
    • Calendar for when to spray
  • Calibration of equipment (60 minutes)
    • Ride-along, boom sprayers, backpack sprayers
  • Fundamentals – how to spray for good coverage, nozzle selection, how that affects drift (45 minutes)
  • Most common mistakes and solutions (60 minutes)


College of DuPage
Glen Ellyn, IL


IGIA / ILCA Member: $65 per person
Non-Member: $80 per person
3 or More from IGIA / ILCA Member Company: $60 per person

REGISTERING 3 OR MORE: Contact IGIA for the promo code to get discount pricing online.