Inonotus dryadeus is one of the more common wood decay fungi we receive at the diagnostic lab in association with declining trees, specifically oaks. Inonotus is found so frequently on oaks it has the common name oak bracket fungus, but it can cause root rot of a number of other hardwood trees (including maples, sweet…Read more about Inonotus Dryadeus – butt and root rot of oaks[Read More]
Resources for landscapes and gardens in the Midwest
Landscape Report
Found 530 Articles
Temperatures are finally dropping and leaves are changing color. Autumn is progressing well in my opinion. Before you know it winter will be here, and some people will be wondering is there anything to be done to better protect the trees around you? The answer is yes, and I applaud you for your initiative to…Read more about Autumn Tree Care: “What Can I Do?”[Read More]
The Women of the Green Industry will be offering two, free educational opportunities on November 7th and December 5th on Zoom: https://purdue-edu.zoom.us/j/95932197520?pwd=KysxUHFPSzZiOTlwcmFZU3hUSXFpZz09 November 7th will feature Karen Mitchell, Purdue Consumer Horticulture Specialist, to present ‘The Social Side of Seeds: Growing Your Community’ December 5th will feature Pedra Sage, owner of Sage Garden Designs, who…Read more about Join Women of the Green Industry on November 7th and December 5th[Read More]
Asian bush honeysuckle (Lonicera spp.) is an extremely invasive plant that is a serious problem in most areas of the Midwest. These invasive plants grow very fast, especially along woodland edges, and shade out most of the understory plants that are found in these areas. Honeysuckle can also significantly reduce the available browse for deer…Read more about Consider Fall Eradication of Asian Bush Honeysuckle[Read More]
Mites are eight-legged arthropods who pierce plant cells to feed on them. Plants that are attacked by mites lose their green color and appear somewhat bronzed. Spider mites will make webs to help them forage on leaves unencumbered by irregular leaf surfaces. The accumulation of webs, and old skins of mites can give heavily infested…Read more about Tune up Your Spider Mite Management This Fall[Read More]
Dead man’s fingers is an apt moniker for a gruesome-looking fungus (Xylaria polymorpha and related species) that produces club-shaped fungal fruiting bodies that appear as fingers growing around the base of dying or dead woody plants and even wooden objects in soil (Fig. 1). With more than 25 species of Xylaria, generalizations are difficult to…Read more about Dead Man’s Fingers[Read More]
Later this week, fall finally brings the respite of cooler temperatures and a much-needed drink of rainfall. While the cool-season species such as tall fescue and Kentucky bluegrass that dominate most of the Indiana lawnscape revel in this well deserved breather from disease pressure and high temperature stress, the metabolism of warm season plant species…Read more about Fall Brings Football & A Lawn Policy Shift[Read More]
The 2023 Purdue Turf and Landscape Seminar will be held on November 16th and 17th at the W.H. Daniel Turfgrass Research and Diagnostic Center in West Lafayette, IN. This event is designed for intermediate and advanced turf and landscape professionals, providing them with the latest technology for managing turf and landscape systems, and to maintain…Read more about Purdue Turf and Landscape Seminar Announced[Read More]
Planting may not be the first chore that comes to mind when considering the fall garden, but as Purdue Urban Forestry Specialist, Ben McCallister mentioned in the last issue, it’s an excellent time to install a new tree1. However, trees aren’t the only thing that can be added to the garden this time of year. …Read more about The Perennial Garden: Fall Planting and Propagation[Read More]
Many areas around the Midwest continue to creep towards an increasing drought situation (Fig. 1). Currently almost 80% of the Midwest is listed as being abnormally dry to exceptional drought (Fig. 2). Current soil moisture data indicates that most of the Midwest is very dry (Fig. 3). Going into the fall it’s very important…Read more about Drought Spreading Throughout Much of the Midwest[Read More]
A new invasive insect of concern has been identified in the state of Georgia. In August of 2023, Georgia’s Department of Agriculture, along with the USDA, confirmed the presence of the yellow-legged hornet, Vespa velutina, outside of the city of Savannah. To date, this is the only confirmed identification of this insect in the United…Read more about New Invasive Predator of Honeybees[Read More]
Many trees are planted for their beautiful fall color, especially in locations where the climate provides reliable autumn weather. I have said this multiple times during extension talks and conversations with submitters to the PPDL, but I seem to have not experienced a ‘normal’ fall since moving to Indiana with how erratic the weather has…Read more about Early Fall Color – A Symptom of Stress[Read More]
When I was a kid, if you’d asked me what my favorite season was it would always immediately be summer. No school, time for playing outdoors, swimming, hiking, and late nights playing flashlight tag. Now, if I ranked the seasons from worst to best, they’d be Summer in last, followed by Winter (yes, I choose…Read more about Can I Plant Trees in the Fall?[Read More]
Wet summer weather always brings in a surplus of plant diseases, but few are as dramatic as clematis blight, caused by the fungus now called Calophoma clematidina (formerly Ascochyta or Phoma clematidina) (Fig. 1). The rest of us simply call it clematis blight or clematis wilt. Why the confusion with both the common and Latin…Read more about Blasted Clematis Blight[Read More]
Help IR4 Help You! The IR-4 Project provides the research necessary for pesticide registration on ornamental plants. IR4 operates as a unique partnership between the U.S. Department of Agriculture (USDA) – both the National Institute of Food and Agriculture (NIFA), the Cooperative State Research Education and Extension Service (CSREES), the Agricultural Research Service (ARS),…Read more about Help IR4 Help You![Read More]
Stop me if you’ve heard this one…. A tree is in a slow decline year after year. You are called to your client’s property only to find the root flare well below grade. Most professionals in the Green Industry have encountered this at some point in their career. The most common reason for the slow…Read more about Another Case of Mortality from Planting Trees Too Deep[Read More]
Trees stressed by prolonged drought are more subject to attack by boring insects. This article provides tips and a video link on how to manage pines for borers. Record breaking heat and sporadic rainfall during July of 2023 took their toll on landscape trees. Cone bearing evergreens, like white pines, are especially susceptible to drought…Read more about Beat Back Borers Attacking Pines and other Cone Bearing Trees[Read More]
Despite the sublime name, tree-of-heaven, Ailanthus altissima, is a particularly bad actor when it comes to trees encountered in the Midwest. This native of Asia was introduced to North America more than 150 years ago and has since become a widespread invasive pest. Rapid growth, extremely high seed production (hundreds of thousands from a mature…Read more about Tree-of-Heaven is not so Heavenly[Read More]
The final month of summer is here, meaning children are returning to school and pools will be closing soon. The end of summer also signifies shorter days, cooler temperatures and a nearing finish line for the long marathon run by our cool season lawns. Summer is tough on the fescues, Kentucky bluegrass, and perennial ryegrass…Read more about Turn Around a Down Lawn with Seed[Read More]
Black vine weevil (Otiorhynchus sulcatus) is a serious pest of several ornamental and fruit plants, such as azalea, Cyclamen, caneberries, yew, rhododendron, grape, and strawberry. It is not a widespread issue, but when they occur, infestations can be devastating to a grower. A few larvae can be lethal to a Rhododendron, and the foliage feeding…Read more about Black Vine Weevil[Read More]
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