![]() ![]() ![]() Protect other shrubs through water and fertilization.Remove infected plant from the landscape.Do not use a chemical application to treat plants.Root systems will be affected and plant growth will be stunted. Symptoms include browning shrubbery and vegetation, which may cause undergrowth to die and/or fall off the plant. Growing season: refrain from pruning shrubs due to the chance it could spread the disease, instead remove infected shrub from the landscape.Tip: Be sure to clean pruning tools in-between shrub cuts.Dormant season: prune the infected areas of the shrub.Often, the affected branches will bend over into the shape of a shepherd’s crook. This common type of bacteria leaves twigs and branches on shrubs wilted and blackened. Tip: An application will likely need to be reapplied seven-14 days later to ensure the health of the shrub is rectified. Water the shrub from under the plant in order to reach roots directly.Hold off on all fertilization until the disease has been altered and the plant health has improved.Prune shrubs to improve air circulation.Remove parts of the shrub that are infected with the disease.This common type of disease is a fungal growth that leaves a white powder on surfaces of shrub foliage. There are numerous types of shrub diseases so let’s explore some of the most common biotic diseases and symptoms of what to look for when diagnosing your sick shrubs and how to treat each disease. Be sure to check the trunk, leaves, branches and roots to note the specific symptoms from which your shrub is suffering. This will help narrow down your market of diseases to identify. It’s important to note that you should identify your infected shrub first as not all diseases affect one type of plant. Identifying the Disease in Woody-Shrub Fungus Materials Let’s explore the biotic causes of woody-shrub diseases that are scientifically or biologically-induced, such as fungi, bacteria, viruses and nematodes. There are a host of resources on those topics. Abiotic diseases are man-induced diseases that involve non-living factors such as lack of space for root growth, prolonged levels of water toxins, or extreme heat, light or soil pH levels. When diagnosing shrub disease, there are two categories for which your “ick” will be classified: abiotic or biotic. Once you are certain your shrub isn’t being eaten by bugs or animals, you can move on to analyzing the type of disease. A landscape professional, trained and knowledgeable about plant health, can inspect and diagnose sick shrubs but for those determined to do a little self-diagnosing, here are some fundamentals to get you started.īegin your prognosis by eliminating improper growing conditions or shrub pests as the culprits for your shrub’s demise by looking for gnaw marks or stripped leaves, which will indicate rodents, rabbits, or deer. Similar to humans, when the needs of shrubs are not met, a decline in health will result. Depending on the specific type of shrub affected, the disease, diagnosis and treatment will all vary. From too little watering to pest infestation, proper disease identification is crucial to the survival of your shrubs. Homeowners strive to maintain healthy plant life in their gardens and landscapes, but oftentimes shrubs suffer casualties, or fall ill from disease for a variety of reasons. ![]()
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