White Powdery Growth On Plants???

[Treeman]

Luke Jacobs wrote:

> Hi there
>
> Does anyone perhaps know why some of my plants get  white powdery growth on
> their leaves?  If I don't wipe it off, inevitably the plant starts to die.
>
> What is this and how do I prevent it?
>
> Luke Jacobs
> South Africa

Sounds like woolly aphid, thrives in warm moist conditions. In my experience
the best cure is to wipe it off! Some people blast the plants with a hose.
Garlic and organic sprays don't seem to work.