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Corn: Damping-Off Pythium (Pythium spp.)

Author: OMAFRA Staff
Creation Date: 04 July 2005
Last Reviewed: 28 July 2007
Pub 812: Field Crop Protection Guide > Chapter 2 : Corn > Damping-Off Pythium

Excerpt from Chapter 2, Field Crop Protection Guide, Order this publication

Table of Contents

  1. Integrated Pest Management Options
  2. Related links...

Integrated Pest Management Options

Can occur on all soil types but losses are greatest in cold, wet, clay soils. Minimize soil compaction and remove excess moisture through increased drainage. Plant when soil temperatures are above 13°C (55°F).
Seed Treatment

Treat seed with metalaxyl or metalaxyl-M. No known resistance but some degree of tolerance available in hybrids. Rotation has limited effect.

metalaxyl-M – Apron XL LS
Active ingredient metalaxyl-M
Trade name Apron XL LS
Rate (product) 20-40 mL per 100 kg seed

Comments
Do not use in hopper-box, planter-box, slurry-box, or other non-commercial seed treatment applications at or immediately before planting. Do not graze or cut for forage within 4 weeks after planting. Read label for information regarding resistant strains of fungus.

metalaxyl – Allegiance FL, Apron FL
  Allegiance FL Apron FL
Active ingredient metalaxyl metalaxyl
Trade name Allegiance FL Apron FL
Rate (product) 46-110 mL per 100 kg seed 46-110 mL per 100 kg seed

Comments
Do not graze or feed livestock on seeded area for 4 weeks after planting.

azoxystrobin – Dynasty 100 FS
Active ingredient azoxystrobin
Trade name Dynasty 100 FS
Rate (product) 10 mL per 100 kg seed

Comments
For use in commercial seed treatment plants only. Do not use in hopper-box, planter-box, slurry-box or other non-commercial seed treatment applications at or immediately before planting. Must be used in combination with Maxim XL.

 

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