Help! Tiny black spots under leaves, white clumped up spots above

10 years ago

Hi there, I'm new to gardening and have been trying to grow a goji plant organically. Recently I've discovered that there's these small black spots under the leaves that can be easily rubbed off. Additionally white spots are starting to form on the top. Are they some insect's eggs or fungus maybe and what would be an organic remedy? Also I've read that neem oil is a catch-all for insects and fungus, is that recommended?

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Comments (3)

jean001a
10 years ago
Very possible that the little black fellows are aphids. If so, they suck plant sap and will weaken the plant.
Rub them off, or use direct hits of insecticidal soap, diluted according to label directions. In both cases, repeat as needed.

I'm not able to see enough detail to suggest what the white might be.
Tiffany, purpleinopp Z8b Opp, AL
10 years ago
I'm getting the impression the tops of the leaves are showing extreme stippling from whatever pest is molesting the bottoms of the leaves.

What kind of plant is this? If it's not in conditions it finds favorable, it could be struggling, which would make it more attractive to pests.
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peabutjam
Original Author
10 years ago
Thanks for the info! Will try with insecticidal soap, hopefully that keeps the aphids at bay. The white stuff seems to be like mold, needs some rubbing to get off. Powdery mildew maybe? Would neem oil be the one stop solution for the two issues?