Best Cure for Black Spot?

just.wing.it

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#1
What causes black spot to form?
I know it has spores that float on the breeze, but what causes it in the first place?

Too wet?....I assume.

Been real wet this year...
Been seeing morw and more tiny black dots on my deciduous stuff...

I spray once or twice a day with 3% Hydrogen peroxide diluted in water about 50% or more....not sure if its helping or not...maybe helping with other stuff, but the black spots are spreading.

Elms, Hornbeams, maples...maybe even azaleas I noticed some suspicious stuff this morning on...

I'm gonna use Neem...and see if it improves...

Any better ideas?

Thanks!
 
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Downstate New York, Zone 6b
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#3
I have a real problem with black spot, leaf curl, and powdery mildew, especially on my prunus, acer, and malus. I spray prophylactically once every couple of weeks, rotating daconil, mancozeb, and other fungicides. The main problem with these things is catching it before bud burst, so a good winter dormancy spray, and another hit of fungicide before bud break gives you a good head start on fungal control. It's a real headache, but there's no other way.
 

just.wing.it

Imperial Masterpiece
Messages
8,008
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Location
Blips and Chitz (Northern MD, 6b...ish)
USDA Zone
6B
#4
I have a real problem with black spot, leaf curl, and powdery mildew, especially on my prunus, acer, and malus. I spray prophylactically once every couple of weeks, rotating daconil, mancozeb, and other fungicides. The main problem with these things is catching it before bud burst, so a good winter dormancy spray, and another hit of fungicide before bud break gives you a good head start on fungal control. It's a real headache, but there's no other way.
Yeah. I used several things over last winter, and bwfore bud burst, including copper and neem...

I read that neem is known to be affective against black spot.
 
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Nashville TN
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#7
I'll let see some Daconil once the sun goes down....but till then, I'm gonna crank up my headphones and play my drums along with Bill and Mickey!
...drums with Bill & Mickey...my friend you have priorities in order ¡¡:mad::(:confused::oops::);):cool:

I just fed trees a healthy meal with the addition of a liberal dose of epsom salt...

Having read that the leaf armor afforded by epsom is good in the herbivory battle... in this mean ass campaign against the black leaf spots, I am hopeful that at the very least this magnesium cannot harm against the slings and arrows
 

just.wing.it

Imperial Masterpiece
Messages
8,008
Likes
9,447
Location
Blips and Chitz (Northern MD, 6b...ish)
USDA Zone
6B
#8
...drums with Bill & Mickey...my friend you have priorities in order ¡¡:mad::(:confused::oops::);):cool:

I just fed trees a healthy meal with the addition of a liberal dose of epsom salt...

Having read that the leaf armor afforded by epsom is good in the herbivory battle... in this mean ass campaign against the black leaf spots, I am hopeful that at the very least this magnesium cannot harm against the slings and arrows
Haha! Yeah, well the wife and kid are outta town this weekend....so its all drums and trees over here!
....and beers and Dead playing in the background, of course.
I'll post a pic of my pieced together kit...
 
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Location
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#10
Haha! Yeah, well the wife and kid are outta town this weekend....so its all drums and trees over here!
....and beers and Dead playing in the background, of course.
I'll post a pic of my pieced together kit...
Yessss! these days are so kind and sacred

my pieced together kit is more Frankenstein’s monster :eek::eek:
 
Messages
832
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Location
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USDA Zone
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#11

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