6 votes

What is the disease that affects my plants?

It does look like Sooty Mould, but its impossible to tell from the picture whether there is a scale or aphid infestation, the end result of which is often sooty mould. Treat the scale or insect pest, ...
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  • 129k
3 votes

Oil/sap from the trees

You are correct! You've got soft bodied insects that suck from the plants. Could be a number of types; aphids, white fly, etc. The sticky stuff is honeydew...the excrement from insects sucking on ...
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  • 39.9k
3 votes

What is the disease that affects my plants?

That appears to be sooty mold http://www.extension.umn.edu/garden/yard-garden/trees-shrubs/sooty-mold/
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1 vote

Removing hawthorn sap from cars

Not really a gardening question, but hey, its vaguely related! Hand sanitiser used neat is the best, doesn't damage your paintwork, probably requires a bit of elbow grease if the sap's been there a ...
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  • 129k
1 vote
Accepted

What are these sticky droplets and pests on my persimmon trees?

Honeydew is the sweet secretion of sap sucking insects such as some scale and aphids. Scale does attack persimmon leaves and causes the leaf to yellow and fall prematurely. The honeydew is often ...
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