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Hotty Toddy

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Discussion starter · #1 ·
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I have three different species of plants that are exhibiting similar abnormal symptoms. The overall vertical growth of the plants is stunted. The new growth at the terminal end is very small and deformed. I emailed photographs to my account extension office who believes, because different species are affected, that this is herbicide drift.

These flowerbeds are adjacent to my turf. I have use Celsius in the past to treat broadleaf weeds and I have used Image for nutsedge.

do you agree that this appears to be herbicide drift? If so do you think it's the die Camba in the Celsius? Will the plants recover next year?

pictures are of Cotinus smokebush, clematis vine, and Annabelle hydrangea.
 
Discussion starter · #3 ·
The Cotinus and clematis are in my front yard. Hydrangea in the back yard. Both yards sprayed with Celsius.

I thought about Asters Yellow, a devastating infection. But it occurring at the same time in three different species would be unusual.

i don’t know what to do. Herbicide drift = wait. AY infection = remove ASAP
 
in the first photo, a disease is very evident from the black on the existing leaves. It looks like all 3 are a fungus/disease. I would treat with T-methyl fungicide a couple of times 2 weeks apart and see what happens. Also, extension agents will ALWAYS blame herbicide when they don't know the answer. Always. Most agents are completely illiterate to proper landscape care, at least in my area. Same applies for the people who operate the local nurseries. They never step foot on the property, but always know more than the licensed lawn care person that has identified the problem while making a site visit.
 
Discussion starter · #7 ·
You may know dicamba injury has been huge problem this year as dicamba is being sprayed on new-type soybeans--a new type soybean that is resistant to dicamba.
However--if conventional soybeans are subject to the drift from this spraying they are injured. Lots of lawsuits on the books.

It is important to determine the pattern. The closer to the spraying--the more severe the symptoms. If symptoms are at a distance from the spraying or upwind--chemical damage is unlikely.
Symptoms are a distinct cupping of the leaves.
https://www.bing.com/images/search?...IR&sp=2&pq=dicamba injury &sk=HS1&sc=8-15&cvid=69B507B285844775B347EB6FF50121B0
 
Discussion starter · #10 ·
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I think the biggest issue with thinking it is from drift is that from the pictures, it is only the new growth.

Any pictures from further away?
you are correct. Only new growth is affected. The older foliage looks ok.

That does seem to challenge the theory of herbicide drift. But what could it be? Some non-foliar toxicity?

I was concerned about it being an Aster yellows infection. The odds of a rare condition hitting three different species of plants at the same time is pretty low I would think.

Here are more pics.
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I sprayed my lawn with Celsius
What did you spray with a rider?
Any evidence of insects on any of them?

Clematis is prone to die back in heat and full sun locations and fungus in summer
 
Celsius contains 57 percent dicamba.
https://www.domyown.com/celsius-wg-herbicide-p-1923.html

Was the spray mostly fine droplets? Pressure too high? Was there a bit of wind? Was it blowing from the spray towards the plants?
The bumpy surface of the young leaves is a sign of dicamba injury. Mostly the new growth and young leaves are affected.
Is it worse where the hydrangea is closest to the grass?

It should recover in a few weeks.
 
Discussion starter · #15 ·
I sprayed with a handheld pump sprayer. I don’t recall the wind pattern.

I’m glad they should recover. I thought I was careful. Be diligent, guys! I’m glad this happened on my landscape and not a client’s.
 
Can't say for the others but clematis does that this time of year if the conditions are not right. They like sun on the leaves and cool, shady and moist on the roots. I have a customer with the exact same growth on his clematis and there have been no applications of any kind this year. Not even fertilizer because it is so rainy the rye grass won't die.
 
Discussion starter · #19 ·
I found another victim. This oakleaf hydrangea is next to the Annabelle hydrangea. The leaf cupping looks like the photos of dicamba damage that @RigglePLC posted.

I last sprayed, I think, before it got real hot here. I don't remember it being windy either. The problem our soybean farmers have had with dicamba has been secondary to its volatility. Could that be the issue here?
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I found another victim. This oakleaf hydrangea is next to the Annabelle hydrangea. The leaf cupping looks like the photos of dicamba damage that @RigglePLC posted.

I last sprayed, I think, before it got real hot here. I don't remember it being windy either. The problem our soybean farmers have had with dicamba has been secondary to its volatility. Could that be the issue here? View attachment 404248
That was one idea I had was why I asked what you sprayed with
I had one of the nationals that we all complain about spray my customers rose and bed with overspray

It was next to a 3 foot wide section of turf next to the rose bed
I think he rode the rider in and oversprayed

The leaves were distorted and wilted after considering vapor which I learned about on LS in my case I think it was careless overspray
 
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