Herbicide Recommendations for Corn: Soil Applied Grass and Broadleaf Herbicides (Preemergence Timing Only)


Pub 75: Guide to Weed Control > Corn > Herbicide Recommendations for Corn: Soil Applied Grass and Broadleaf Herbicides (Preemergence Timing Only)

Excerpt from 2010-11 Chapter 9, Publication 75, Guide to Weed Control, Order this publication

Cover of Publication 75, Guide to Weed ControlTable of Contents

  1. Princep Nine-T
  2. Corn Herbicide Weed Control Ratings (Table 9-1) (PDF file - 84kb)
  3. Corn Leaf Stages
  4. Why is Early Season Weed Control so Important in Corn?
  5. Related Links

Princep Nine-T
Trade Name
Princep Nine-T
or Simadex
or Simazine 480
Active Ingredient
simazine
simazine
simazine
Formulation
90 WG
500 g/L
480 g/L
Rate per hectare (active)
1.35 to 2.25 kg/ha
1.6 to 4 kg/ha
1.6 to 4 kg/ha
Rate per hectare (product)
1.5 to 2.5 kg/ha
3.2 to 8 L/ha
3.4 to 8.3 L/ha
Rate per acre (product)
0.6 to 1 kg/ac
1.28 to 3.2 L/ac
1.36 to 3.32 L/ac

Precautions

  • These products are listed separately because of their widely differing rate ranges. In both cases the low rates should be used on sandy soils while the higher rates may be used on loams and clays.
  • Full season annual weed control can be expected except for crabgrass or fall panicum where infestations have built up.
  • Caution is advised when considering rates beyond 2.0 kg/ha (0.8 kg/ac) as soil residues may be high.

Related Links


For more information:
Toll Free: 1-877-424-1300
Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca
Author: OMAFRA Staff
Creation Date: 25 November 2002
Last Reviewed: 30 January 2010