Fill a spray bottle with 1 pint of tepid water and 1/2 tablespoon neem oil and mix well. Spray the stems and tops and bottoms of the leaves of the hydrangeas and discard the solution, as it breaks down within hours after mixing. Neem oil treats black spot and a host of other fungal diseases, such as cercospora. Spray it on the hydrangeas every seven days.
Leaf spots. ... Often, affected leaves turn yellowish green and fall off, although the plant usually survives. The problem is caused by a fungus that spreads via spores in wet or humid conditions. To control leaf spot, avoid watering yourhydrangeas from overhead, and again, remove and destroy diseased plant parts.
Somehow my house and garden got tiny gnats that killed my fuchsia plant and fly everywhere. I have tried ALL the Web recommendations - soap and oil dishes, sand in th...
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Growing our first garlic, should we wait until the leaves are drying out before we pick it? Husband picked first one today along with our first potatoes.
Hi everyone, I have mice in my garden destroying my vegetables and I have also noticed them in the barn and shed. Please can someone tell me how to prevent them from ...
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Trail of dead grass appeared two weeks ago that starts in neighbor's yard and goes to the sidewalk, then continues past the sidewalk in a line into the grass into my ...
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Black spots are a fungus. In early spring treat the bushes with a fungicide.
Fill a spray bottle with 1 pint of tepid water and 1/2 tablespoon neem oil and mix well. Spray the stems and tops and bottoms of the leaves of the hydrangeas and discard the solution, as it breaks down within hours after mixing. Neem oil treats black spot and a host of other fungal diseases, such as cercospora. Spray it on the hydrangeas every seven days.
I was told mine was fungal, bought the commercial
spray and they cleared right up.
Sheila Durham, do the dark spots already on leaves fade?
Leaf spots. ... Often, affected leaves turn yellowish green and fall off, although the plant usually survives. The problem is caused by a fungus that spreads via spores in wet or humid conditions. To control leaf spot, avoid watering yourhydrangeas from overhead, and again, remove and destroy diseased plant parts.