Maple Anthracnose

Jeff Stachler, OSU Extensioneer in Auglaize County sent the following message this past Tuesday on June 6:

  “A maple tree in the front of a home yard has leaves with the symptoms you see in the photos.  Veins and leaf tips are black with yellow and brown colors below the black.  Is there anything that can be done or should be done?” He also sent the tell-tale photo above, showing “water-soaked” darkish lesions along leaf veins.

 

Right on time. Last June 5, I took a picture of a neighbor’s red maple in Doyletown in northeast Ohio of the same problem: maple...

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Jim Chatfield

Dripping Dogwoods

I recently came across dogwoods growing along a trail in southwest Ohio that were festooned with the frothy, spittle-like masses produced by the Dogwood Spittlebug (Clastoptera proteus); a reminder that there are at least 23 different species of spittlebugs (family Aphrophoridae) in North America.
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Joe Boggs

Rusty Hawthorns

It’s easy to spot wild hawthorns growing along Ohio trails at this time of the year if they sport gaudy orange-spotted leaves. The spots are the telltale leaf symptoms of Cedar-Hawthorn Rust and the leaf infections can cause hawthorns to stand out among other understory trees and shrubs.
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Joe Boggs

Where Do Four-Lined Plant Bugs Come From?

I’ve come to expect seeing some damage each spring from our native Four-Lined Plant Bug (Poecilocapsus lineatus, family Hemiptera). However, their wreckage appears to be particularly heavy this season in some parts of Ohio. The question “where did they come from” is common when hordes of hungry insect pests descend seemingly out of nowhere onto plants to cause extensive damage.
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Joe Boggs
Terrific Tree Lilacs Trim Tree Lawns tdehaas Wed, 06/07/2017 - 07:44
Japanese Tree Lilacs are in full bloom in northeast Ohio. They really grab your attention as you drive by with their showy white flowers that proliferate all over the head of the tree. They make you look twice and admire their beauty and form.
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Thomas deHaas
Tangled Up In Blues chatfield.1 Tue, 06/06/2017 - 16:21

Sometimes you just have to stop what you are doing and appreciate plant life. Kenny Cochran of Secrest Arboretum fame always loved plants in combination, especially after he came back from a trip to Poland with an appreciation of clematis twining up trees, wild-like.  Today Paul Snyder of Secrest sent me a picture of blue spruce needles piercing leaves of Tim Brotzman’s great redbud:  Cercis canadensis Lavender Twist® ‘Covey’ and the two plants entwined. How cool is this? 

 

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Jim Chatfield

Don't Touch This Weed!

Wild parsnip (Pastinaca sativa) plants are rising towards their full height and blooms are beginning to appear in southern Ohio. Landscape managers and gardeners should exercise extreme caution around this non-native invasive plant. Severe blistering can occur if chemicals (furanocoumarins (= furocoumarins)) in the plant juices come in contact with skin and the skin is then exposed to sunlight; specifically ultraviolet light. The effect is called phytophotodermatitis.
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Joe Boggs

Kousa Dogwood: Tree of the Week

Before posting this bygl-alert, I had planned on reviewing the many cultivars of Chinese or Kousa dogwood that have entered the market in recent years, including Cornus kousa crosses with Cornus florida (our native flowering dogwood).  I will do this soon, but cannot wait. This is such a year for the kousa dogwood in my side yard that I must share pictures of it from this season right now.

 

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Jim Chatfield