Re: Shrubs fungus?

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Posted by Newt on June 28, 2003 at 08:56:07:

In Reply to: Shrubs fungus? posted by Rona on June 26, 2003 at 20:05:11:

: Hi- I have no idea what kind of shrubs that I have, but I have a major problem. I have a white, powdery type stuff on the leaves and it has killed one shrub and is now attacking another one. They are not near each other. I have no idea what this stuff is or where to find a picture of it. I can take a picture of the shrub(s) with the stuff on it, if someone can please point me in the general direction I need to be on this. Oh, don't know if it matters, but I live in SW Oklahoma. Thanks in advance for any help!

Hi Rona,
Sounds like either powdery mildew or mealy bugs. Powdery mildew usually first appears on new growth, in periods of warm, dry days followed by cool, damp nights. The new leaves may become curled or twisted, and the shoots will look badly deformed. Often, the upper surface of the leaves appears normal, but there is extensive fungus growth on the leaf undersurface. Take a look at these to see which you have.

Powdery mildew:
http://www.uovs.ac.za/faculties/agrinat/plantsci/ppg/Gallery/Nasturtium%20powdery%20mildew%20-%20Leveillula%20taurica.jpg
http://www.uovs.ac.za/faculties/agrinat/plantsci/ppg/Gallery/powdery%20mildew.jpg

Mealy bugs:
http://www.hibiscus.org.au/pestplus.htm
http://www.succulents.co.za/Succulent_Pests/images/Mealy_Bug.jpg

For homemade remedies see this site. Look under 'Mildew' for powdery mildew.
http://www.permacult.com.au/research/natural_pest_control.html

Best of luck,
Newt

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