Weed Management in Sweet Corn

1
Weed Management in Sweet Corn

• Chris Boerboom
• Extension Weed Scientist
• UW-Madison

2
Keys to Success

• Weed Identification and Life Cycles
• Annuals tillage, herbicides, flaming, etc.

3
Keys to Success

• Weed Identification and Life Cycles
• Biennials tillage, herbicides

4
Keys to Success

• Weed Identification and Life Cycles
• Perennials herbicides, tillage

5
Methods of Weed Control

• Cultural and mechanical practices summarized in
  proceedings

6
Methods of Weed Control

• Herbicides
• Commercial Vegetable Production in Wisconsin,
  A3422 sweet corn weed control pages 156-162
• Consider
• Weed spectrum page 17
• Application timing
• Crop safety
• Crop rotational intervals pages 18-19

7
Methods of Weed Control

• Herbicides
• Preemergence options
• Annual grasses Dual, Outlook, Micro-Tech,
  Prowl
• Annual broadleaves Atrazine, Princep
• Premixes
• G-Max Lite (Outlook atrazine)
• Bicep Lite II Magnum (Dual II Magnum atrazine)
• Bullet or Lariat (Micro-Tech atrazine)

8
Methods of Weed Control

• Postemergence options
• Annual grasses Accent only labeled for use on
  processing sweet corn
• Annual broadleaves
• Atrazine
• Basagran
• Laddok (atrazine Basagran)
• Aim
• 2,4-D
• Stinger

9
Methods of Weed Control

• Directed applications nozzles mounted on skids
• Nonselective (grass and broadleaf)
• Gramoxone Max or Evik