If you’re noticing a decline in your Oak trees this summer, Bacterial Leaf Scorch could be the culprit. Bacterial Leaf Scorch, discovered in New Jersey in the early 1990’s, attacks shade trees and is caused by the xylem-clogging bacteria, Xylella fastidiosa. Xylem is one of the two types of transport tissues in trees; by clogging […]
Tree Problems
You may have noticed spider-like webs showing up on your bushes and trees recently. In some areas, the webs are so prevalent that it looks like trees and bushes have been decorated for Halloween. The culprit? Fall Webworms. Our Arborists report seeing an abnormally high population of Fall Webworms this year. This insect is a […]
If you’ve been noticing white patches on your trees and shrubs it could be a case of White Prunicola Scale (Pseudaulacaspis prunicola). White Prunicola Scale is an armored scale, thought to have originated in China or Japan, that feeds on the fluids/sap in trees and shrubs. If left untreated this insect infestation can severely harm […]
With one heatwave ending and another approaching trees and shrubs are starting to show the effects from the heat. Heat stress can make your plant more susceptible to insects and disease, can cause unsightly damage, and may kill young or newly planted trees & shrubs. Unlike humans and animals, the signs of heat stress in […]
If you’ve started to notice your Oaks having bare branches and missing leaves, Orangestriped Oakworms could be the culprit. This native caterpillar feeds on the leaves of Oak trees, and sometimes other hardwoods, causing severe defoliation. This pest is usually noticed in late summer particularly August and September; however, heavy infestations can completely defoliate a […]
It’s that time of year again! Powdery Mildew is starting to cover leaves and spread throughout landscapes. Powdery Mildew is the name used to describe a group of fungal diseases caused by fungi in the order Erysiphales. Characterized by patches of white to grayish, talcum-powder-like growth, Powdery Mildew is usually easy to spot. And although […]
Viburnum Leaf Beetle, Pyrrhalta viburni, is a new invasive species that is making its way down the East Coast and could wreak havoc on both native and imported species of Viburnum in DC, Maryland, and Northern VA. Both the larvae and adult beetles feed on foliage creating severe damage and eventually killing the plant. The […]
If you’re noticing spots or overall decline of your boxwoods this season, it may be Boxwood Blight. Boxwood Blight, Calonectria pseudonaviculata, is a fungal disease that has defoliated Boxwoods throughout Europe since the 1990s. It was first found in the United States in October 2011. Up until 2018 infections were scattered; however, the rainy 2018 […]
Honeydew is one of the most common tree care issues we see in the DC Metro Area. You may not be familiar with the name but you’re probably familiar with the issue. Have you ever encountered annoying sticky sap coating your car, furniture, or walkway that’s under a tree? That’s Honeydew. This plant health issue […]
