How many different kinds of plants do you see?

1
How many different kinds of plants do you see?
2
Do you like to see wildflowers?
3
(No Transcript)
4
How did Weeds Get Here?

• Hitched a ride on immigrants and animals
• Contaminated seed and hay from other countries
• Escaped from ornamental plantings

5
How are Weeds Spread?

• Human disturbances like driving motor vehicles,
  hiking, biking, and pets
• Natural disturbances like wind, rivers, wildlife,
  and low-intensity fires

6
Houndstongue
7
Integrated Weed Management

• Use more than one method of weed control
• Focus on ecology of plant community
• Focuses on what you want to grow or desired
  vegetation

8
BIOLOGICAL CONTROLS
HERBICIDES
FERTILIZATION
REVEGETATION
PREVENTION
GRAZING
DESIRED VEGETATION
LIFE CYCLE OF NOXIOUS WEEDS
BURNING
IRRIGATION
OTHER
MOWING
MULCHING
CULTIVATION
HAND PULLING
9
Biological Control

• Urophora affinis

10
Herbicides