Tree Service Knowledge Base
Redwood Bark Beetle: What Bay Area Homeowners Should Watch For
The tallest trees on Earth often host a beetle about the size of a grain of rice within their bark. Known as the redwood bark
October 23, 2026
Wildfire is a serious threat across California that touches the lives of nearly every resident and business in the state — including those in the Central Coast area. But while wildfire is inevitable, there are things homeowners and property managers can do to help protect themselves, such as having defensible spaces created around houses, buildings, and other structures. Essentially, zones in which flammable materials have been removed, defensible spaces help to slow the spread of fire, thereby protecting the structure inside the zone. Fortunately for those in the Central Coast region, it’s easy to find professionals who can help, as Adney Tree Service provides a complete line of defensible space services.
Defensible spaces may not completely eliminate the threats wildfires present, but they are certainly helpful — one study found that defensible-space-compliant homes were six times more likely to survive wildfires than unprotected homes. But creating defensible spaces is not always a simple task, so it’s critical that you partner with a team of experts who can build in the fuel gaps needed to protect your home or business. The Adney Tree Service pros know exactly how to do that, and we’d love to help provide you with the kind of wildfire protection you deserve.
The primary benefit defensible spaces provide is pretty clear: They help keep your home or business safer in the event of a wildfire. But they actually do this in a number of ways and also offer some underappreciated, ancillary benefits, such as:
Establishing a defensible space essentially involves creating three key zones around a home or business, which provide varying levels of protection from wildfire. We’ll establish each of these protective zones in the following ways:
Known as the ember-resistant zone, Zone 0 starts at the walls of your home or business and stretches about 5 feet away. Inside this zone, we’ll remove all flammable vegetation, as well as combustible landscaping elements, such as mulch or wood chips (non-combustible hardscaping can be used to replace these items, if desired). We’ll also trim any branches overhanging your roof line to protect your structure from dropping embers.
Sometimes called the lean, clean, and green zone, Zone 1 starts at the end of Zone 0 (approximately 5 feet from your structures) and continues for an additional 25 feet. In this zone, we’ll work to clear out any dead plants, grass, weeds, or leaves. We’ll also trim the trees in this region to ensure there is 10 feet of space between their crowns and ensure that shrubs and small trees are well-spaced to prevent the establishment of continuous fuel ladders. You’ll want to keep this area well irrigated and maintained all year long.
Zone 2 is called the reduced fuel zone and it is located between 30 and 100 feet from your structures (or to the property line). We’ll thin the native vegetation in this area, while retaining fire-resistant species where possible, and remove dead trees, fallen branches, and large accumulations of leaf litter. We’ll also help you develop a plan for properly maintaining your grass in this zone (it should be 4 inches tall or shorter).
Choosing a team to establish your defensible spaces is a big decision. Choose wisely and you’ll enjoy improved safety and give your home or commercial property a better chance of surviving wildfires; choose poorly and you may find yourself dealing with a tragic outcome. But we try to make it easy for residents and property managers of the Central Coast region to make the right choice. Choose Adney Tree Service for your defensible space needs, so that you can rest assured you’ve put your structure in good hands, and you’ll be prepared when the next wildfire occurs.
Every property is unique, which means that every defensible space we create for California residents and property managers is also one of a kind. But while we always strive to achieve the specific goals of each client and address the specific challenges presented by each property, we’ve developed a reliable process that helps to provide the kind of service Adney Tree Service is known for.
This process typically unfolds as follows:
Given the dangers wildfire presents, it’s critical to choose a contractor with the skills, equipment, and expertise necessary to create defensible spaces that will keep your home or business safe. That’s exactly what you get from Adney Tree Service. In fact, we believe there are several things that help set us apart from the competition and provide the confidence you deserve.
ISA certification demonstrates a level of education, experience, and skill that uncredentialed “tree guys” just can’t match. And under his guidance, our team is able to not only care for trees but also provide expert-level environmental maintenance services, such as defensible space creation.
Unlike some other tree-care companies, we’re not satisfied with simply getting the job done as quickly as possible. We demand excellence from ourselves and always strive to offer artisan-caliber service for homeowners and commercial property managers alike.
You have to have a deep understanding of California’s vegetation — including the native trees and commonly planted ornamental species — to provide the kind of tree-care and defensible space services we are proud to offer.
We aren’t a fly-by-night tree-care company or some new outfit that just rolled into town. We’re based in the Central Coast region, where we’ve been providing homeowners and property managers with unmatched service for a decade.
We aren’t a single-service tree company that only offers pruning or removals. We offer a complete slate of services, from tree installation to lot clearing to defensible space creation, which means you never have to worry about contacting multiple contractors — we do it all.
Whether you’re having a tree pruned or a defensible space established, it’s always important to work with true professionals. That’s not a problem when you partner with Adney Tree Service, as you’ll always be protected in the unlikely case of a mistake.
Have more questions about establishing defensible spaces in California? Curious about the way Adney Tree Service provides defensible space services for homeowners and property managers? We’ve collected a few of the most common questions we hear from our clients and answered them below.
The tallest trees on Earth often host a beetle about the size of a grain of rice within their bark. Known as the redwood bark
A tree can be gone for years while the fungus that killed it is still alive underground. Armillaria is a great example. This potentially lethal
Invasive shothole borers are no longer just a Southern California problem. In September 2025, officials confirmed the beetles in two trees in the Tannery area
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