8/10/2023 0 Comments Fungus on boxwood shrubs![]() The underside of these leaves show the white sporulation of the fungus. Symptoms and SignsBoxwood blight symptoms often begin as dark green spots that quickly turn into dark brown blotches on the leaves. Blight also lives in three different Canadian provinces.Ģ. Now, the disease is mainly found in states along the East Coast, Ohio, and Oregon. In fact, the first confirmed case of blight wasn’t reported until October 2011. Boxwood Blight Is Fairly New in the U.S.Boxwood blight was first discovered in Europe in the early 1990s and didn’t show up in the United States until the early 2000s. So, here are some facts that Nature’s Select Piedmont wants you to know.ġ. Many residents still don’t know how to identify this fungus and often confuse it for a thirsty, dead, or dying bush. Boxwood blight is a fungal disease and has become a widespread problem for nurseries and homeowners throughout the Piedmont area. However, this small, green bush is extremely susceptible to diseases like boxwood blight. Never compost diseased plant material, and keep in mind that fungus can live in the debris for as long as five years.Boxwood is a fundamental shrub in landscaping designs. ![]() Alternatively, dispose of debris in a tightly sealed plastic bag. Rake up all debris under the plant after pruning, then burn diseased debris immediately to prevent the spread of the disease. Prune only when the plant is dry, as pathogens spread quickly in damp conditions. Work carefully pruning wounds provide an entry point for the disease. Remove all dead growth, including leaves that are caught in the crotch of branches. Prune the diseased boxwood to improve air circulation, light penetration, and overall growing conditions. Use sharp tools to prevent scratching and tearing plant tissue. Sanitize pruning tools before and after each use. Instead, water at the base of the plant, using a garden hose, drip system, or soaker.
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