The following articles were compiled during the last 7 days by members of the Extension, Nursery, Landscape, Turf (ENLT) team to benefit those who are managing a commercial nursery, garden center, or landscape business or someone who just wants to keep their yard looking good all summer. Access the BYGL website for additional information on other seasonal topics at: http://bygl.osu.edu
For more pictures and information, click on the article titles. To contact the authors, click on their names.
Colorful displays of three types of rust fungi are appearing on junipers in Ohio. The fungi belong to the genus Gymnosporangium and they complete part of their life-cycle on members of the plant genus Juniperus and the other part of their life-cycle on members of the family Rosaceae. In biological terms, this type of life-cycle is known as “heteroecious.”
Kissing Bug Hysteria Rises Again
Several national news networks reported yesterday that a kissing bug had been found in Delaware. The story was echoed today by a number of print and online news outlets. Frankly, the story is much ado about nothing.
Grafting Gone Wild!
Grafted ornamentals are trickier than you may think. Learn the story of one mysterious Cherry tree! Check it out!
Red Bark on Sycamore and London Planetrees
Last Wednesday, Jerry Frankenhoff (Urban Forester, Great Parks of Hamilton County) sent an e-mail message asking about red staining on the bark of sycamore trees. He wrote that he’d never seen anything like this before. I was shocked when I looked at his attached image. Likewise, I had never before seen the unusual reddening symptoms on sycamore or any other tree.
Research is Revealing!
New Findings on Rose Rosette Virus by USDA Agricultural Research Service in Beltsville,Maryland
Be Alert for Four-Line Plant Bugs!
Four-Lined Plant Bugs (Poecilocapsus lineatus, family Hemiptera) are one of the quickest hitting spring pests found in Ohio. Hordes of hungry bugs descend seemingly out of nowhere to cause extensive leaf damage, then they just fade away leaving behind their foliar wreckage.
Heavy Maple Seed = Sparse Leaves
Phone calls and e-mail messages to Extension offices from landowners concerned about the health of maples should soon be on the rise. That’s because maples in much of Ohio, as well as Indiana and Kentucky, are producing loads of winged seeds (samaras).
Floweringquince in Bloom
Floweringquince is in bloom and the brilliant orange-red to red colors can stop you in your tracks!
Growing Degree Days (GDD) in Ohio
Each Tuesday, members of the Extension Nursery Landscape and Turf (ENLT) have a virtual meeting to discuss what they are seeing in their own area and talk about those “stumpers” that they have come across in the horticulture world and get feed back from others in the group.
The imperial fritillary or crown imperial (Fritillary imperialis) is blooming in gardens in northwest Ohio now. The plant comes in various shades of yellows, oranges and reds. The pendulous flowers are about 2″ long and are found clustered at the terminal end of stout and leafless stem that towers above the leaves below. Above the flowers are a sheaf of smaller leaves that form a tuft of green as shown in the photo below.