Powdery Mildew – White Powder On Your Leaves?
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 Powdery Mildew won’t typically kill a tree by itself, it is an eyesore and can lead to health problems down…
Boxwood Blight: Are Your Boxwoods In Danger?
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 season greatly increased the spread of the disease. It has now become more noticeable in Maryland, Virginia, and DC landscapes….
Signs Of Spring Fungal Leaf Diseases
Although spring just began, our arborist warn homeowners to already be on the lookout for fungal leaf diseases. Fungal diseases that attack the leaves of trees can start emerging as early as buds start to sprout and new growth begins. Our current weather conditions, rainy with warmer days and cool nights, are perfect breeding grounds for all types of fungal diseases, especially fungal leaf diseases. When it comes to fungi, prevention is key. Usually once…
Horse Chestnut Leaf Blotch – Guignardia Blotch
Horse Chestnut Leaf Blotch, also referred to as Guignardia Leaf Blotch, is a common fungal disease throughout the DC Metro Area. While non-native, the Horse chestnut is widely planted in urban and suburban landscapes. Like most fungal diseases, these pathogens thrive in wet conditions. The rainy year we have been having will most likely lead to not only more horse chestnut leaf blotch infections but also more severe infections. Susceptible Trees: Like the name implies…
Shot Hole Fungus On Cherry Laurels
Shot hole fungus, also known as shot hole disease, is a serious fungal disease that creates distinct BB-sized holes in leaves. With the rainy, warm weather we’ve been having this season Shot Hole Fungus is running rampant. Our Arborists report seeing Shot Hole Fungus on lots of Cherry Laurels in this area. Without treatment, this fungus will re-infect your shrubs year after year, not only ruining its aesthetic appeal but also weakening the shrubs health….