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Boxwood blight found in Ohio
Officials Confirm First Detection of Boxwood Blight in Ohio REYNOLDSBURG, Ohio (Mar. 26, 2012)—The Ohio Department of Agriculture (ODA) today announced the discovery of boxwood blight at the Red Mill...
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European pine sawfly larvae active now.
European pine sawfly larvae are just starting to eat needles. Young larvae can’t eat all the way through needle tissue when young. Curling brown needles are evidence this pest is active. Older larvae...
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Eastern tent caterpillar nests active now, Secrest Arboretum in Wooster OH.
This common caterpillar forms silky nests in tree crotchesin spring. Tent caterpillars overwinter as eggs in a crusty gray egg case attached to treebranches. Eggs hatch out in spring when flowering...
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Michigan awash with Phomopsis cankers on spruce trees and seedlings | MSU...
Phomopsis cankers are causing shoot blight symptoms in nurseries and a general decline of spruce trees in the landscape. This unparalleled disease of spruce can be found on blue, white and Norway...
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Bad news for Ohio’s hemlocks: hemlock wooly adelgid found in Washington County
www.agri.ohio.gov/public_docs/news/2012/05.07.12 ODA – ODNR HWA Washington County Joint News Release.pdf Denise Ellsworth is a horticultural educator with Ohio State University Extension. If you have...
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State Aims to Prevent the Introduction of Thousand Cankers Disease
OHIO DEPARTMENT OF AGRICULTURE TO ISSUE EXTERIOR STATE QUARANTINE TO PROTECT OHIO’S WALNUT TREESREYNOLDSBURG, Ohio (May 22, 2012) ‐ In an effort to protect the walnut trees of Ohio, The Ohio...
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Rose Rosette VIrus
Bad news for the Ellsworth landscape. In the midst of spring clean-up and pruning, I noticed a strange branch on one of my rose bushes, tucked back near the base. Unlike the other branches, full of...
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Getting Rolling, Literally, with the Ben Stinner Pollination Garden
This video from the Arnold Arboretum demonstrates the use of an air spade to relieve soil compaction. Mark Hoenigman of Busy Bee Services (Novelty, OH) will be leading the effort to undo some of the...
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ATI Gardens in Wooster full of color
From the ATI gardens on campus today – despite the heat, the gardens are thriving! Mixed perennials in the teaching garden Liatris in bloom Coming together: the birch arbor Denise Ellsworth is a...
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Viburnum leaf beetle adults
This invasive pest was first introduced to North America from Europe in 1947 in Ontario, Canada. From its initial introduction, the beetle has spread across the northeast, reaching Ohio in 2002. Both...
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White pine weevil damage evident
The white pine weevil is a native pest that attacks the leader, or topmost growth, of pine and spruce trees. Adult weevils spend the winter in the duff around the base of trees, and emerge in spring...
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Broad mite on brugmansia
Broad mites caused the twisted, distorted leaves and buds on this brugmansia. These tiny mites are sensitive to hot temperatures, and can be managed by submerging plants into hot water (43 to 49...
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Robbing carpenter bees, and The Great Bee Count
In bloom at The Holden Arboretum The lushly-blooming butterfly garden at The Holden Arboretum in Kirtland has no scarcity of flowers or insect visitors, including painted lady, fritillary, monarch and...
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summer drought 2012
Finally last week, soaking rain. It felt as if my garden released a gentle sigh as my rain gauge showed over an inch and a half of rain over a series of small storms. The grass seemed to green...
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Join The Great Bee Count!
Watch a sunflower for The Great Bee Count Take part in The Great Bee Count anytime on or around August 11th! Sponsored by researchers at San Francisco State University, the Great Bee Count is a...
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Genista caterpillar defoliates false indigo
Genista caterpillar This caterpillar has been stripping the leaves off of false indigo (baptisia) in Ohio this summer. Learn more about this defoliator here. Read the Kansas Insect Newsletter for more...
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Autumn views at Secrest Arboretum in Wooster
Low-growing aster Prairie plants in fall splendor Caryopteris in bloom An assortment of sedums in bloom Ornamental grass at its peak Denise Ellsworth is a horticultural educator with Ohio State...
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Discover the Autumn Garden at Secrest
Autumn is a glorious time in the garden, a time when we’re blessed with leaves changing colors, annuals overflowing their summer homes, abundant visits from pollinators, and a rich assortment of...
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Keeping stink bugs out of the house!
David R. Lance, USDA APHIS PPQ, BugwoDavid R. Lance, USDA APHIS PPQ, Bugwood.org Mike Raupp, Professor and Extension Specialist with the University of Maryland, shows how to rid the home of pesky...
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Caring for Holiday Plants
Blooming plants make great gifts, especially for a busy hostess or that hard-to-buy-for relative who just doesn’t need any more “stuff.” At yesterday’s Ohio State ATI holiday plant sale, I purchased...
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