Leaf blotch, also called red spot and measles, is a common disease of peony caused by the fungus Graphiopsis chlorocephala (=Cladosporium paenoiae). The disease has multiple names because there are multiple symptoms. Lesion on leaves and stems can vary from tiny red spots (“measles”) to larger brown or purple blotches (Figures 1, 2 and 3)….Read more about Peony leaf blotch[Read More]
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Landscape Report
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This past February was among the coldest and snowiest we had since 2014. Yet despite our discomfort, it won’t be an issue for most insect pests that attack landscape plants. Most species regularly survive winters that are far colder. Indeed, the snow cover probably protected many insects from freezing in this year’s winter weather. Insects…Read more about Will the February Freeze Kill This Summer’s Pests?[Read More]
WEST LAFAYETTE, Ind. —The 2021 Indiana Green Expo (IGE) will offer professional turfgrass, landscape and nursery managers recorded and live sessions. Recorded classes will be available Monday (Jan. 18) through Feb. 4. Keynote addresses, a virtual trade show and networking sessions will air live Tuesday (Jan. 19) through Jan. 22, beginning at 10 a.m. (ET)…Read more about 2021 Indiana Green Expo to go online with live and on-demand sessions[Read More]
The Indiana Arborist Association will be hosting a virtual conference from Jan. 26-29, 2021, in lieu of its 73rd annual in-person meeting. The virtual event will offer a diverse group of speakers and topics in order to engage professionals, volunteers, managers and decision-makers alike. “As our organization gathers virtually together in 2021, we have the…Read more about IAA Annual Conference[Read More]
Please join us for the 2021 Indiana Arborist Association Virtual Annual Conference While we can’t be together in person this year, we can continue to learn with each other and earn those continuing education units (CEU). Hear the most current research and information from internationally and nationally known experts about emerging trends and BMPs….Read more about Attend the Indiana Arborist Association Annual Conference Virtually[Read More]
It’s that time of year that roadways and sidewalks begin to be treated with salt. To prevent accidents, both vehicular and slips, salt is an invaluable tool that keeps people safe. For all of the benefits for humans, plants aren’t as appreciative. We have two great resources available that explains salt damage in great detail…Read more about Alleviating Landscape Soils with High Salt Concentrations[Read More]
For many of us, pest management is never far from our mind. This may be because the pests we manage are always there, and even if we can’t see them, we know that they haven’t disappeared completely. For this reason, it is important to take a time-out and think about how to improve your management,…Read more about IPM&M: Integrated Pest Management and Mindfulness[Read More]
Please join us Wednesday (November 18th) for our bi-weekly, live educational series. The event will take place at 12:00 pm (Eastern) on Zoom at https://purdue-edu.zoom.us/j/96190839031 or on Facebook Live at https://www.facebook.com/PurdueLandscapeReport/. The following speakers and topics will include: Janna Beckerman: How the IR4 Environmental Horticulture Program Works for the Green Industry Kyle Daniel: Navigating the…Read more about Virtual Facebook Live Meeting[Read More]
Tubakia leaf spot, caused by the fungus Tubakia, is the disease we find more commonly on oak than any other. Throughout the world, there are 11 species of Tubakia known to infect oak, with Tubakia dryina (previously known as Actinopelte dryina) being the most commonly encountered species in our landscapes. Apple, ash, black gum, chestnut,…Read more about Tubakia and Bur Oak Blight[Read More]
If you didn’t get your spring-flowering bulbs planted it may not be too late, but a lot depends on what the weather does. The reason for planting bulbs in the fall is two-fold. Bulbs require a period of chilling to initiate flowers. Most spring-flowering bulbs require 10 to 13 weeks of temperatures below 40º F….Read more about Didn’t Get Your Bulbs Planted Yet?[Read More]
We often think of Phytophthora as mainly a root rot pathogen, but Phytophthora can also cause a bleeding trunk canker under the right conditions. The most commonly attacked trees we see in the diagnostic lab are American and European beech (Fagus spp.), and maples (Acer spp.); but this disease is also reported to occur on…Read more about Phytophthora Bleeding Canker[Read More]
Join us for the 2020 Turf and Landscape Seminar! Learn the latest research and best management practices from Purdue’s Green Industry Specialists. The seminar is available now until November 18th with a live question and answer session with the specialists on November 19th. All participants will receive a free copy of the 2020 Turfgrass Weed…Read more about Register Today for the Turf and Landscape Seminar[Read More]
Please join us Wednesday (November 4th) for our bi-weekly, live educational series. The event will take place at 12:00 pm (Eastern) on Zoom at https://purdue-edu.zoom.us/j/96190839031 or on Facebook Live at https://www.facebook.com/PurdueLandscapeReport/. The following speakers and topics will include: The Tree Next Door-Lindsey Purcell Preventing Southwest Injury and Bark Cracking on Trees-Kyle Daniel
Plant Growth Regulators (PGRs) have been proposed as a management tool for reducing the labor needs in the Green Industry. Although PGRs are widely accepted in the ornamental plant production, their adoption among landscape maintenance companies is limited. The cost of PGRs and the lack of economic feasibility analyses are likely to undermine their adoption….Read more about A tool to understand shrub maintenance and PGRs[Read More]
I hear this complaint or issue more frequently, “what can I do about the neighbor’s tree?” or “my neighbor just butchered my tree!”. Often, we see issues with a neighboring tree that may threaten safety or appears to be an elevated risk. For example, from the view of your window you see your neighbor’s tree…Read more about The Tree Next Door[Read More]
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