362.T1

Model Agricultural Core Curriculum: SupplementUniversity of California, Davis

Weed Control

Mechanical Weed Control

• Hand Pulling• Hoeing• Cultivating• Burning• Mowing• Smothering with

plastic mulches

362.T2

Model Agricultural Core Curriculum: SupplementUniversity of California, Davis

Weed Control

Cultural Weed Control

• Crop rotation• Use of weed-free crop

seed• Use of smother crops

362.T3

Model Agricultural Core Curriculum: SupplementUniversity of California, Davis

Weed Control

Biological Weed Control

• The objective of biological control is to reduce weed populations, not eradicate them.

• Some natural enemies which are often used are Klamath Weed Beetles, Puncture Vine Beetles, & domestic geese.

362.T4

Model Agricultural Core Curriculum: SupplementUniversity of California, Davis

Weed Control

Biological Weed Control (cont’d.)

Animals in pasture.

362.T5

Model Agricultural Core Curriculum: SupplementUniversity of California, Davis

Weed Control

Chemical Weed Control

• Herbicides are often used because they are inexpensive and effective when handled properly.

• If handled improperly, however, they may kill your crop and contaminate ground water.

362.T6

Model Agricultural Core Curriculum: SupplementUniversity of California, Davis

Weed Control

Chemical Weed Control (cont’d.)

Selective Herbicide Non-Selective HerbicideKills only selected plants. Kills all plants where applied.