This Phomopsis disease may be the one most aggressively attacking Norway spruce. During the summer, the humidity of Michigan provides an environment that fungal pathogens thrive in. Insects can cause great harm to spruce trees as well. Fungal diseases can be difficult to spot — as can the presence of certain insects. These are seven facts you should know about blue spruce disease in Michigan. I will try to break down our understanding of spruce decline into environmental and biotic factors. Unfortunately, blue spruce trees are subject to a wide range of insect and disease problems that can impact their growth and aesthetic appeal. New pathogens seem to be discovered annually, and the unusual weather conditions in recent years have further complicated everything. The outside of a house should be just as special as, Your home is a long-term investment. If you are looking to add or expand your outdoor living space, you may be considering a brick paver patio. It’s why you should have your spruce trees inspected on a routine basis by a professional landscape service. Raking leaves and cutting back dead plants are always on the to-do list when preparing your lawn and landscape for Michigan’s long, cold winter. Spruce trees are the most problematic of all conifers in our landscape right now. With insects, control is relatively easy: see a bug, spray it, and it rolls on its back, kicks up its six legs and dies. It is dense and compact and can present some unique challenges in your yard. Additional suspects have been identified. Two of the most harmful insects include gall adelgids and spruce spider mites. Whereas spruce decline is widely recognized to be occurring throughout the Midwest, there is uncertainty and debate about the extent to which other pathogens might be involved. It’s where your family will grow, Building a new home isn’t just about the roof, floors, and doors. Sometimes it pays to put some effort into it in order to make it more livable and, The outside of your home is just as important as the interior. Blue spruce trees are widely planted due to their good growth rate, stately form and, of course, their blue foliage. Winter can be very tough on your landscaping. When you have an unused space in a small yard, finding the right way to use it can make a big impact on the overall look of your property. Sometimes the purple discoloration, which usually shows up in late summer, is shocking.What remains after the infected needles drop are thin, unhealthy-looking specimens with needles only at the ends of the branches. Because blue spruce trees are mostly affected by fungal diseases, the use of fungicides can help to control the spread of the disease and potentially even prevent it. This disease causes needles on Colorado Blue Spruce to turn a … Trimming off the infected branches back to the trunk will reduce inoculum and slow the spread of the disease. When creating a landscape design, there are certain spaces that can be a challenge. These areas often leak resin. Given that the fungal spores need water for germination, disease control usually involves spraying the fungicide in between rainy periods, so that when the environment is conducive to disease spread, the fungicide is in place to act as a preventative. One was given the charming name SNEED (spruce needle drop), but last I heard the consensus was that it is not a disease-causing organism. Some of the diseases are familiar: Rhizosphaera needle-cast causes older needles (i.e., those not at the ends of the twigs) to turn purplish and subsequently fall off. In this case, the best treatment is to remove the affected branches. If you notice water puddles in your yard after a rainstorm that don’t dry up right away, you may have drainage issues. The plain truth is that the more often the trees are sprayed with fungicide, the more likely it is to achieve disease control. Recent wet weather years have been especially hard on spruce trees, as evidenced by the number of dying trees visible in local landscapes. With crab apples, a couple sprays in early spring are sufficient since the time of disease spread is very predictable. 1. Diseases old and new: insects are (in general) easy on spruces, but the fungal diseases are numerous and their numbers are growing. Trees planted close together in groups or close together in a tree line tend to especially be affected by this disease. Common Blue Spruce Diseases Common pine tree diseases include Rhizosphaera needle cast and Cytospora canker fungus. All of these diseases are caused by fungal pathogens and each produce specific symptoms that can be useful in diagnosing the problem. If you think your blue spruce trees are infected or want to have them inspected, contact us at Twin Oaks Landscape today. All rights reserved. Some pathologists believe it is a key causal factor in spruce decline in Michigan. Inconspicuous cankers develop on lower branches—the cankers … Compound that with an eroding, Most Michiganders like to head outside when the weather allows. It’s a fungus that infects the needles of the current year’s shoots. But being a new homeowner can often be overwhelming. The Colorado blue spruce tree has been one of the most popular types of conifers for commercial landscaping throughout Michigan for years now. Blue Spruce Trees Can be Infected by Insects. There are others, and it gets very messy. If you have outdoor space on your property that you're not taking advantage of, then maybe an exterior home improvement project is in the cards for you. It visually welcomes visitors and can give you added living, There is nothing worse than having a property you can't use because you can’t get to it. Most commonly fungicides used in the landscape only act as prophylactics. Norway spruce is usually not badly affected by this fungus. Muggy spring weather contributes to the rapid spread of fungal diseases. Fungicides can be particularly effective for treating needlecasts in order to protect new growth; however, it may require yearly applications for two to three years. There are three principle types of diseases that affect blue spruce trees: needlecasts, tip blights and canker diseases. The following are seven facts about blue spruce disease in Michigan that you should know: Canker diseases cause sunken areas to appear along the tree’s stems. A good landscape service will be able to catch any issues that your trees have early on, allowing them to take action to prevent further damage. Underneath an existing... Clay soil is common in this area. As a result, blue spruce trees planted in Michigan are often more prone to fungal diseases. A more precise term would be fungistat. Those products called fungicides do not kill fungi, but rather prevent spores from germinating or retard the growth of mycelia (the fungal mass). Most of the species in the landscape come from mountainous habitats where the air is dry and the soils are cool and reliably moist.Two severe droughts in the last three summers have been hard on landscape spruces. Usually the lower branches are first to die, but sometimes the disease begins in the upper crown or at multiple points. The former is an infectious needle … A common fungal disease, Cytospora canker generally affects older blue spruce trees but may also infect Norway spruce. … Many homeowners experience standing water in their yards, but most don’t know how to address it. Get landscape help and help your community. Diseases old and new: insects are (in general) easy on spruces, but the fungal diseases are numerous and their numbers are growing. The only drawback to having blue spruce trees on your property is the fact that they can be prone to blue spruce disease in Michigan. Our clay soils are good for sugar maples, but difficult for the roots of spruces to penetrate and thrive in. Needlecasts. A species of Phomopsis fungus once know only from nurseries has now been found in the landscape. The cankers that develop are caused by a fungus that infects the branches or main stems of the tree. GreenStreet Tree Care in Ann Arbor, Michigan has four ISA Certified Arborists on staff. Ensuring a beautiful lawn and garden means you’ll have to get your landscape ready in the fall. If your home doesn’t already have outdoor lighting, you may have considered installing it. Spraying specimen trees in spring may help contain this pathogen, but no studies have yet been conducted to test this. As long as the environmental conditions favor disease spread, fungicides need to be reapplied approximately every couple of weeks in order to guarantee control. In the real world of landscape plant management, it is only practical to spray two or three times a season, and those applications are timed to coincide when disease spread is most likely. Learn more at lotusgardenscapes.com, How is All This RAIN Affecting Your TREES, Greenstreet partners with Lotus Gardenscapes, Surprising Appearance of a Chinese Yellowhorn.