Classify common weeds that affect plant growth.

Classification could include

• definition of a weed
• common weeds in Virginia
• broadleaf vs. grass weeds
• perennial, annual, and biennial weeds.

Process/Skill Questions:

• What types of weeds impact Virginia agriculture?
• Which characteristics of weeds determine their classification?
• How do weeds affect plant growth?
• What are some methods of weed control?
• What are noxious weeds?