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Articles of Interest
Gypsy Moth: Homeowner Tactics to Reduce Gypsy Moth Caterpillars
The citizens of Rochester Hills are the Forestry Division's greatest allies in our efforts to reduce the gypsy moth population within the city. Whether or not an aerial spray to control gypsy moth in a particular year is planned, citizens should be prepared to help do their part to reduce caterpillar numbers in the community.
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 (Source: Rochester Hills Forestry Department)

Emerald Ash Borer Information Resources
 
Diplodia Tip Blight Redux
Diplodia Tip Blight is caused by the fungus, Diplodia sapinea, (="Sphaeropsis" sapinea). Many exotic (introduced) and native pines are affected by the disease. Austrian, Scotts and Mugo pines are, perhaps, the most susceptible but native red, Jack and other 2–3 needle pines are also affected. Five-needle pines tend to be resistant. 
Read Entire Article (Source: MSU and Michigan Green Industry Association)

Spruce Decline

Have you noticed that some spruce in the landscape appear to have thinner crowns, fewer needles, and more dead branches? Researchers at Michigan State University have confirmed this is occurring.
Read Entire Article (Source: Rochester Hills Forestry Department)

Fox Squirrel Eats Maple
A Fox Squirrel de-barks a tree to eat the cambium underneath. Over the course of 5 or 6 months, the squirrel has stripped nearly a third of the bark off a very tall sugar maple in Rochester Hills, Michigan.
Watch the Video (Sources: Rochester Hills TV YouTube Channel)

Proper Mulching Techniques
Mulching is one of the most beneficial practices a homeowner can use for better tree health.
Read Entire Article (Source: www.treesaregood.com)

Oak Wilt
If you’re considering getting tree trimming done this spring or summer, be sure to keep in mind that some species of trees are best pruned while they are still “dormant” (before new growth begins in the spring). This is especially true of oak trees due to the danger of oak wilt. 
Read Entire Article   (Source: Rochester Hills Forestry Department)

Tree Roots in Sanitary Sewer Lines
Tree roots generally do not extend downward into the soil profile more than 2-3 feet. Sanitary sewer lines are almost always deeper. If a source of water, nutrients, or oxygen is available, the roots may grow deeper.
Read Entire Article  (Source: Rochester Hills Forestry Department)

The Do's and Don'ts of Irrigating Landscape Plants
Summer has come early to many parts of Michigan, bringing a lot of hot, dry weather. While most homeowners are diligent to water their flower beds and vegetable gardens, it is important to remember to give trees and shrubs a drink, too.
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(Source: MSU Extension)

Thousand Cankers Disease of Black Walnut
Thousand Cankers Disease (TCD) is a fungal pathogen that is spread via a beetle that is native to the southwestern U.S. Since 2010, TCD has been found as close as Ohio, Tennessee, Virginia, and Pennsylvania.
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