Monthly Archives: June 2014

Emerald Ash Borer

The devastation of the emerald ash borer is more apparent than ever. Do you have an ash tree in your landscape? Is it slowly declining? Then you more than likely have a tree that was affected by the borer. How can you tell?

• The adult beetle will create a “D” shaped hole in the bark of the tree. Once the larvae emerge you may also see increased woodpecker damage as they like to feed on the larvae.

• Dieback usually begins in the top one-third of the canopy and progresses down the tree until it is bare.

• You may also notice epicormis shoots, these are the sprouts (suckers) that grow from the roots and trunk of the tree. The leaves of these shoots are often larger than normal.

What now? Well once the tree has been affected by the beetle it’s pretty much too late. You will need to have the tree removed. This is best done by a professional as there are strict regulations on what to do with the tree.

When planning your landscape be sure to plant a variety of trees of different species. This allows for biodiversity and a number of habitats for wildlife. If we plant a monoculture of plants you will see what can happen when a disease or insect becomes a problem (such as dutch elm disease and now emerald ash borer).

emerald ash borer damage (1)

An entire street lined with Ash now destroyed by the borer.

emerald ash borer d hole

Typical borer “D” shaped holes.

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In Bloom…

Lupine (1)

gaillardia (2)

amsonia blue star (1)

achillea moonshine (10)

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Hear David Van Zelst speak…

when: June 14 at 12:30 and 1:30

where: 681 Lincoln Ave, Winnetka

David will be speaking on the use of social media/pinterest and it’s influence on the design process and about organic influenced gardening.  Copies of his book “Transformation: Ideas for the Midwestern Landscape” will be available for purchase, proceeds of sales will go to www.youevanston.org.

 

RSVP to Linda Martin
Call 847-275-7253 or Email [email protected]

 

Van Zelst, Inc.

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The birds and the bees and butterflies too!

nestCommuning with nature is a great way to spend the evening after a long day of hard work and relax. The best gardens are those that are wildlife friendly! Here are a few tips to make your landscape a more welcoming environment. Birds of all species need various nesting sites. It’s good to have a variety of trees, shrubs and evergreens. Even an old dead tree can fit into your landscape to invite woodpeckers and nuthatches to nest. Butterflies need nectar sources, host sources (for the caterpillars) and shelter. And all living beings need water, a great way to attract more wildlife is to include a water source.

Here’s small list of plants to entice the birds, bees and butterflies!

Trees and shrubs for birds:
Serviceberry (amelanchier)-the birds love to gobble up the berries in the spring!
Hawthorn (crataegus)-great protective tree for nesting and produces berries for a food source.
Colorado Spruce or Norway Spruce (picea)-A great protective nesting site for birds (as with most other evergreens).
Red/Black Chokeberry (aronia)-another great food source for birds.

Butterfly garden plants:
Yarrow (achillea)
Columbine (aquilegia)
False Indigo (baptisia)
Butterfly Bush (buddleia)
Caryopteris
Tickseed (coreopsis)
Delphinium
Coneflowers (echinacea)
Bee Balm (monarda)
Penstemon
Sedums
Goldenrod (solidago)

A small pond or fountain makes a great open water source.

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