Many of the leaf spot diseases we observe can cause premature leaf drop in affected plants, which can reduce plant vigor if the disease is severe enough and a large proportion of the canopy falls in one season. Elm trees are susceptible to a number of different anthracnose fungi, including Ophiognomonia intermedia, Gloeosporium betulae, Cryptocline…Read more about Cryptocline leaf spot (anthracnose) of Elm[Read More]
Resources for landscapes and gardens in the Midwest
Landscape Report
Have you ever noticed what appears to be a dusting of white flecks along the stems and leaves of a euonymus shrub or winter creeper vine? You were likely looking at euonymus scale, Unaspis euonymi (Comstock). This armored scale is one of the most common and damaging pests of ornamental euonymus in the Midwest, and…Read more about Scale Spotlight: Euonymus Scale[Read More]
Emerald Ash Borer Awareness week is taking place this year from May 17th to the 23rd, so it’s a great time to revisit one of Indiana’s most notorious invasive pests. One can walk through state parks and natural areas to find skeletal ash tree husks standing testament to emerald ash borer’s impact on the Hoosier…Read more about Emerald Ash Borer Awareness Week is Coming Soon![Read More]
For at least 100 straight weeks (since mid-July 2024!) counties in north-central Indiana (from about Newton and Benton counties in the west to Allen, Adams, and Jay counties in the east) have been in some level of dryness. While not all these counties have been impacted, at least some of them have been anywhere from…Read more about Spring rains help relieve northern dryness[Read More]
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