Ross Tree is seeing rare tree diseases and insects this year because of our wet spring and summer. One of our arborists found Anthracnose on Ash trees. The fungus usually attacks Sycamore trees. Anthracnose seldom kills trees but disfigures and weakens them. All these...
American Elms are native to North America. Back in the 1800s horticulturists and city planners across the U.S. planted them in parks and the public right-of-ways, so their modern range is the whole country. These magnificent trees grow 60 to 80 feet tall, with a 40 to...
It Is Time to Think About Plant Health Care Plant Health Care (PHC) is a holistic tree and lawn care approach. It is much like an annual check-up humans get to keep healthy. PHC creates the ideal growing conditions so trees and lawns can naturally resist insects and...
Denver is Discovering Pink and Grey Snow Mold As the Snow Melts Pink and grey snow molds are like fried ice cream – they are a contradiction in terms. It is hard to fathom how some things like this can happen, but they do. Denver has a true winter this year,...
Believe it or not, Maple trees sap is running in Denver even after our cold snap in January. The same thing happens in Vermont when Sugar Maples are sugared to make syrup. Sap running gets its start during the previous growing season. During photosynthesis, little...
Chapstick for Trees Evergreen trees do not go into dormancy like hardwood trees because they retain their needles in the winter. When the ground freezes, these trees tap into the water stored in their leaves and stems. Sometimes trees exposed to hot sun or wind cannot...