First . . . the data. Mistletoe is the common name for a parasitic plant with yellowish flowers and glutinous white berries that grow attached to, and within, the vascular system of a tree or shrub. Mistletoe does not normally kill a tree,...
People love superlatives.
We want to know which car is fastest, which athlete is strongest or which CEO is the richest, even though the results have very little bearing on our lives. And of course, who can forget the superlatives section...
Many parents seek to educate their children about the natural world and our place in it. While one could argue that virtually any aspect of the natural world – from beetles to mushrooms to plankton – can serve as a good starting point, we are...
Recently, we posted a quiz designed to test the tree knowledge of the general public, but, today, we wanted to share a similar quiz. However, we made this quiz for tree-care professionals (who should have aced Monday’s quiz). Scroll down to...
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...
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...
Soil texture is one of the primary ways by which arborist, landscapers and other professionals with dirt under their fingernails classify soils. Determined by the size distribution of the particles in a sample, soil texture influences 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...