Appendix J. Responsible
Glyphosate Use in Field Crops
Excerpt from 2010-11 Publication 75, Guide to Weed Control, Order
this publication
Responsible Glyphosate Use In Field Crops
Glyphosate and Roundup Ready crops are valuable weed management
tools, however:
- The risk of glyphosate resistant weeds will increase if glyphosate
is managed improperly.
- In the United States, there are populations of Common Ragweed,
Common Lamb's-quarter, Waterhemp and Canada Fleabane resistant
to glyphosate.
- No new herbicides are currently being developed to replace glyphosate.
There is a tremendous opportunity for Ontario Growers to become
leaders in the stewardship of glyphosate. The Ontario Weed Committee
has devised the following guidelines for responsible glyphosate
use that is intended to minimize the risk of glyphosate resistant
weeds.
- Know What You Have
Scout fields for weed species and density. If this is beyond your
area of interest or expertise then hire a certified crop adviser
to do so for you.
- Develop A Plan
Once your field has been scouted and you know what weed species
you have, sit down with your certified crop adviser and develop
a long-term management plan to address your weed spectrum.
Your Plan Should Consider: "The Seven Steps Of Responsible
Glyphosate Use"
Step 1: Use "Roundup Ready" technology in fields where
it will have the greatest economic benefit.
Step 2: Rotate "Roundup Ready" crops with conventional
or other herbicide tolerant crops as well as rotate herbicides with
different modes of action.
Step 3: Always use the full labeled rate of glyphosate.
Step 4: Tank-mix glyphosate with residual herbicides where appropriate.
Step 5: Use cultivation where appropriate.
Step 6: Scout for and report any suspected glyphosate-resistant
weeds to 1-877-424-1300.
Step 7: Control and prevent the spread of weed escapes.
Related Links
