Arborist Now - Blog

Are you interested in testing your tree-teligence? Take our tree-knowledge quiz below and see how you do! 

Each question is multiple choice; scroll down for the answers. We designed this quiz for laypersons, but we have published a quiz...

While not terribly common, many trees bear sharp thorns along their twigs, branches or trunks. Often, thorns are seen as problematic traits, and trees that bear them are often avoided during installations. Some have even produced thornless...

Every day, our collective understanding of trees improves. In addition to learning more about the behind-the-scenes world of trees, we learn new ways to battle pests and control the spread of invasive species. Today, we wanted to share a few...

A few weeks ago, you noticed that the big sycamore tree (Platanus racemosa) in your yard developed a large vertical crack. 

You did the right thing, and immediately called an ISA-certified arborist to evaluate the tree. Unfortunately, the...

As a tree ages and develops problems, arborists and property owners must often take action to keep the tree healthy and safe. Sometimes, simple steps, such as supplemental fertilization or minor corrective pruning, may be enough to solve the...

A few days ago, we discussed the importance of selecting wind-tolerant tree species for those living in windswept areas (San Francisco and the Bay Area are particularly good examples, and not just because these areas are plagued by the aptly...

Like many other facets of the natural world, trees are the subject of innumerable myths and misunderstandings. As professional arborists, our job is to help separate fact from fiction, thereby allowing our clients and readers to better care...

Not so long ago, arborists and other tree professionals would coat fresh pruning cuts with a latex- or petroleum-based paint. The goal was to prevent the advancement of decay, which could ultimately kill the recently pruned tree. However, one...

Urban trees must cope with a constant parade of assaults. They live amid polluted air, grow in confined areas and suffer scars from delinquents and ne’er-do-wells. However, these damaging deeds pale in comparison to the primary threat facing...