by Susan
Perry
Colorado State University Extension Master
Gardener
Larimer County
Q: Where can I get information on how to adjust my sprinkler system?
A: All major sprinkler system manufacturers have websites
that contain instruction manuals for homeowners. Look at the sprinkler head
you want to adjust, find the manufacturers name and model number and then you
will be able to go to their website and find instructions and guidance.
Simple adjustments to one or two heads of your sprinkler system can be fairly
straightforward. However you may want to consult a professional for major or
more extensive adjustments, since there may be design factors to consider. Additional
information is available from CSU Extension Fact Sheet #7.239
- Operating and Maintaining a Home Irrigation System.
Q: I have a shrub I want to get rid of under a tree. What is the best way to do this without damaging the tree?
A: First, you may want to try to kill as much of the
shrub as possible in advance with glyphosate, such as Round Up. When applying,
be careful not to allow any of the chemical to spray or “drift”
onto nearby plants (including the tree), and be sure to follow the directions
on the container.
After waiting the time specified on the container to see results, carefully
dig around the shrub using a sharp spade or pick, identifying shrub roots to
remove. As much as possible, it is important not to disturb or damage the tree
roots, in order to preserve the tree. Most tree roots are located in the top
6-24 inches of soil, in an area two to four times the diameter of the tree crown.
When you have removed as many roots as possible, you
may also want to consider applying one of a variety of products on the market
that speeds up the decomposition of any remaining stump or roots. If any remaining
roots send out sucker shoots, these can be killed with another careful application
of
glyphosate.
Gardening and Insect Fact Sheets are available on-line by clicking HERE.
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