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Phytophthora Diseases
Phytophthora is a genus containing many species of fungal-like organisms that cause blights, wilts, cankers, root rots and dieback on many plant species around the world.
Michigan Municipalities Receive Forestry Assistance from DRG
For officials at the city of Ferndale and East Grand Rapids, being able to call on Davey Resource Group, Inc. has been a game changer for their community forest management initiatives.
How to Refresh Potted Plants by Changing Soil
The goals of potting mix are to retain moisture and nutrients around the plant roots and provide enough air for growing roots. Typically, changing the soil in your potted plants should happen every 12 to 18 months. There are some exceptions that may change this timing, learn more.
Protecting Your Green Investments With a Plant Health Care Program
Adopting a proactive plant health care program ensures short-and-long-term benefits for a thriving, healthy landscape, but also limits harm to people, property, or business operations on your commercial site. Here’s what a holistic plant health care program covers.
It's Oaktober in Maryland!
Arborist Lou Meyer from Davey's Mid-Atlantic region talks about how oak trees are powerhouses for taking care of our environment. 
Can I Trim Bare Trees in the Winter?
In this Family Handyman article, Lou Meyer, business developer for Davey’s mid-Atlantic region, talks about why you should prune your trees in the winter.
Elm Leaf Beetle
When populations are large, elm leaf beetle larvae and adults can completely defoliate elms. Adults chew small, circular holes. Infested trees appear drought-stricken and brown or scorched.
Do I Have a White Pine?
Learn how to identify a white pine like an expert! Detailed is an easy-to-follow guide on the unique characteristics of white pines: needles, cone shape, and tree bark. Once you identified your white pine, it’s time to properly care for it and proactively mitigate potential threats.
Rhizosphaera Needle Cast
Rhizosphaera is a fungal genus that affects cone-bearing shrubs and trees throughout the Northern hemisphere.
Cytospora Canker
The plant pathogenic fungus Leucostoma kunzei (formerly Valsa kunzei) is the causal agent of cytospora canker, a disease of some conifers found in the Northern Hemisphere, predominantly on Norway spruce (Picea abies) and Colorado blue spruce (Picea pungens).
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