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Verticillium Wilt - A Serious Disease of Trees and Shrubs

Verticillium wilt is a fungal disease that affects over 300 species of plants, including many common trees and shrubs. In Iowa, it is most commonly seen on maple, ash, and catalpa trees, although it is also frequently found on smoke tree, viburnum, lilac, cherry, plum and several other trees and shrubs. Read more about Verticillium Wilt - A Serious Disease of Trees and Shrubs

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Planting and Caring for New Trees in the Landscape

The most common way to establish trees in the home landscape is to purchase balled and burlapped or container-grown plants at local garden centers and nurseries. Balled and burlapped (B&B) trees are dug with balls of soil around their roots. The rootballs are wrapped in burlap and held in place with twine or nails. Large trees are placed in wire baskets for additional support. Balled and burlapped trees can be successfully planted from spring to fall. Read more about Planting and Caring for New Trees in the Landscape

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Preparing Evergreens for Winter

All evergreens, and particularly broad leaf evergreens such as boxwood and rhododendron, are susceptible to winter desiccation. Winter desiccation also is referred to as winter burn or winter browning. Desiccation occurs when the evergreen's foliage loses moisture due to the bright winter sun and harsh winter winds. In winter the plants are not able to absorb enough additional moisture from the soil to replace the water that evaporates from the foliage and stems. In addition to making sure the plants are well watered before the onset of winter there are a few other measures homeowners can take to protect the plants. Read more about Preparing Evergreens for Winter

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