Problem Weeds in Field Crops: Managing Annuals and Biennials

Learn management and herbicide use for weeds such as lambsquarters, Palmer amaranth, foxtails and crabgrass. Earn pesticide applicator recertification credits.
Problem Weeds in Field Crops: Managing Annuals and Biennials - Online Courses
Length of Access: 365 days
Sections: 2
Length: 30 minutes
Language: English
Note: Earn 1 Pennsylvania Department of Agriculture (PDA) Category 1 or 18 credit, and a certificate of completion.

Starting at FREE

Starting at FREE


Weeds in field crops, forages, or other agriculture systems pose a constant challenge for farmers. This self-paced course uses videos and short readings to discuss some of the most problematic annual and biennial weeds in the United States and Pennsylvania, including lambsquarters, burcucumber, common ragweed, marestail, Palmer amaranth, waterhemp, foxtails, crabgrass, and wild carrot.

For each weed, you learn basic weed management tactics, how the weed's life cycle influences management, and effective herbicides to use.

There is a final quiz. If you are taking this course to obtain a Pennsylvania Department of Agriculture (PDA) pesticide applicator recertification credit, you must pass the quiz with a score greater than 70%.

When you pass this course, you will earn a certificate of completion and 1 recertification credit. (Note: it may take 2 to 4 weeks for recertification credits to be reported to and verified by PDA.)

Who is this for?
  • Crop farmers
  • Crop consultants
  • Certified pesticide applicators seeking Category 1 or 18 credits
  • Property owners interested in controlling problem weeds
  • Other agricultural professionals
What will you learn?
You will learn how to:
  • implement the basics of annual and biennial weed management, including prevention, cultural, mechanical, biological, and chemical controls
  • utilize information about annual and biennial weeds, including identification
  • control annual and biennial weeds
  • outline the impact of the weed's life cycle on management and herbicide use
  • optimally time herbicide application


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