Winter is the best time to thin trees to keep them healthy and protect them from disease, according to the Minnesota Department of Natural Resources. “Pruning trees when they are dormant is a way to protect them from diseases such as oak wilt or Dutch elm disease that are active during the growing season,” said Jennifer…
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Introduction The spruce spider mite is considered one of the most destructive spider mites in the United States. It injures the foliage of spruce, arborvitae, juniper, hemlock, pine, Douglas-fir, and occasionally other conifers. Damage This species damages host plants by sucking plant fluid from needles as they feed. Infested trees at first have a…
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What is Oak Wilt? Oak wilt is a vascular disease of oak caused by a nonnative fungus. It is one of the most serious diseases of oak in the eastern United States, killing thousands of trees each year. Where site conditions favor disease, the fungus can spread from tree to tree, killing most if not…
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Plant Health Care has been defined as the selection, integration and implementation of pest control based on predicted economic, ecological and sociological consequences. Today, perhaps more than ever this approach is relevant to all landscape pest, nutritional management and care. Societal concerns about pesticide use, their value to the landscape and the method of application…
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From large projects to small – from tree trimming to shrub care and insect and disease treatments – we can guide you and keep your trees vibrant, healthy, and add value with beauty. Many trees and shrubs are not as healthy as they could be, due to construction, nearby buildings, sidewalks or careless planting in incompatible…
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An affinity for trees and shrubs has been in the blood of Jim Ostvig’s family for over 75 years; ever since Jim’s grandfather, Marty, began transplanting large trees in the Finger Lakes area of New York State in the 1920’s, before starting his own business in Minneapolis in 1933.