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Monday, May 2, 2016

Homeowners questions answered

Wednesday, August 15, 2012

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The question has been asked several times in the last week: What can be done for established trees during this drought?

If you are interested in watering established trees, then you should consider providing them with enough water to wet the soil at least 2-3 feet deep.

To get the water to soak 2-feet deep, it will take roughly 2-inches of irrigation water.

If possible, provide the water in a circle at the drip-line.

For newly planted trees, it is best to follow the 10 + 5 rule to help them survive this drought.

The 10 + 5 rule means you should provide the tree with 10 gallons of water plus 5 gallons for every diameter inch of tree trunk.

For established trees, a good rule is to provide an inch of supplemental water every week or so.

For trees, water stress is only part of what they face when dealing with a drought.

The other part is their susceptibility to insects, fungi and other pathogens.

When a tree becomes stressed by environmental factors, it is more susceptible to attacks by those three organisms.

These organisms can bore into trees and cause enough damage that it can cause the tree to die.

They can come in the form of native pests or exotic species such as Emerald Ash Borer (EAB) or Asian Longhorn Beetle.

To bring everyone up to speed on EAB, both Clay and Owen counties are considered quarantined counties.

There have been trees positively identified with EAB in Clay County, while in Owen County, trees have been negatively identified.

Due to these quarantines, any ash wood that could harbor living EAB may not be moved outside of the quarantined county without written permission from the Indiana Department of Natural Resources in the form of a compliance agreement.

For more information about EAB, log on to http://extension.entm.purdue.edu/EAC/ind....

We have started to see a little bit of rain, but that does not mean the drought is over.

Over the next few weeks, I encourage every woodlot owner to take some time to look at their property for drought stressed trees.

This would include trees with recently dead or dying upper limbs, areas of bark dying and peeling (particularly on the upper trunk), evidence of wood borer damage to trunks or branches and sprouting of new limbs and leaves at the base or on the trunk of larger trees.

As always, if you have any questions or would like information on any agriculture, horticulture or natural resource topic, then please contact your local Purdue Extension Office at 448-9041 in Clay County or 812-829-5020 in Owen County, or reach me directly at smith535@purdue.edu.

Purdue University is an equal opportunity/equal access/affirmative action institution.

Upcoming opportunities available to you through Purdue Extension include:

* Sept. 2-8 -- Going Local Week,

* Sept. 3 -- Extension Office closed. Holiday, and

* Sept. 8 -- Nature Day, 9 a.m.-1 p.m., Clay County Fairgrounds.



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