www.arborage.com Arbor Age / May 2014 21
areas and locations. These kits are readily available, and usu-
ally involve using color-changing paper to document the pH,
water hardness and iron levels.
Solving water quality problems
The Purdue publication also recommends ways to solve
water quality issues. It starts with reviewing the recom-
mendations on the herbicide label. The label may specify
pH levels needed, or it may warn about reduced effective-
ness if mixed with water that is considered to have high
hardness levels.
If the water doesn't meet requirements, it may be necessary
to add an adjuvant or it may require conditioning the water. A
water conditioner can be added to the herbicide solution to
eliminate problems with water hardness. Or a pH buffer can
be used to raise or lower the water's pH.
The full publication provides important details on the topic.
To read it in its entirety, visit www.ppp.purdue.edu and click on
"Extension publications" and then "Publications."
Article provided by Dow AgroSciences. This article originally appeared
in "Vistas," a publication of Dow AgroSciences, and is reprinted here by
permission. For more information, visit www.vegetationmgmt.com.
All photos provided by Dow AgroSciences
