Tiny yellow spots on leaves: pests or disease?

 
All leaves of my primroses, some roses and catmint this summer got
covered with tiny yellow spots (see attached). Rhododendron, Azalea and
Begonia are intact.  I thought it's a whitefly and used Rose Clear Ultra
and Provado Ultimate Bug Killer to cure the plants( but with no success)
and cut the catmint to the roots.

Did anyone encounter the same problem in the garden? What's this? Is
there a chance these pests will die over the winter?

Please help


+-------------------------------------------------------------------+
|Filename: P10300171.jpg                                            |
|Download: http://www.gardenbanter.co.uk/attachment.php?attachmentid 440|
+-------------------------------------------------------------------+



--
KittyB

 KittyB said:

Yellow stippling like this is often caused by spider mites.

Examine the bottoms of the leaves with a strong magnifying glass.

attachmentid440|

Pat in Plymouth MI
    
"Yes, swooping is bad."
 
email valid but not regularly monitored
  

 
'Pat Kiewicz[_2_ Wrote:

There are several diseases which is happening in plants but yellowing
leaves can be caused by a number of conditions. If the cause is obvious,
you can fix it immediately. If the cause isn't so obvious, try changing
one thing at a time until you fix it. Even after you correct the
problem, however, it's likely that yellow leaves will fall off with
time. Don't worry: if the plant regains its health, it's very possible
that new leaves will fill in during the next growing season


+-------------------------------------------------------------------+
+-------------------------------------------------------------------+



--
pfe47

 
Thank you very much for your replies! Looks like spider mite. I'll try
the Scotts Bug Clear Ultra Gun" insecticide to get rid of them.


+-------------------------------------------------------------------+
+-------------------------------------------------------------------+



--
KittyB