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Mites Problems Page 2

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Problems - mites Page 2

Here are more awful pictures (and more tales of woe) for your (peverse) pleasure...

New growth sprouts out from the wreakage of a mite attack. This is a Rebutia, a genus particularly vulnerable to spider mite attack.

The specimen will look nice again only after a long while, if new growth can be made mite-free. Once the affected parts recede as the plant becomes bigger, the scars will be less evident.

Pity, neglect spoils a great specimen. This was a nice grafted specimen, a two-headed Gymnocalycium baldianum on a Myrtillocactus geometrizans.

Spider mite attack on the grafted head was severe. The stock plant had also been attacked. Most spider mite-affected specimens can be saved, if protected from a secondary fungi attack and further spider mite attacks. Still, it takes time for the plant to grow beautiful again.

This is a rooted Gymnocalycium horstii offset which had been neglected for a while. The specimen survived, and it eventually outgrew the scars. The attack was not very severe, since scarring is mild.
A succulent is attacked. The top part of the shallow ribs is discoloured, with some scarring visible. Perhaps that is the softer portion of the plant. This plant is in danger of contracting sooty mold. A sooty mold attack frequently kills the apical growing point. The tips of affected stems will then die back.
A diseased Frailea pygmaea. A serious spider mite attack has left this Frailea specimen completely covered with brown scars. New growth, in green, is just starting to poke out from among the scars.
Another graft with a problem of neglect. The graft is again, a Rebutia. Rebutias will be among the first to be attacked. The choice location for a spider mite attack is however, on any plant which has sheltered surfaces. Note that the hardier Echinopsis stock is hardly affected.
This is a not-so-beautiful Stenocereus thurberi (Arizona organ pipe cactus). I found this species to be very, very susceptible to spider mite infestation. Stenocereus pruinosus is much tougher than this. I still keep a few Stenocereus thurberi for fun, since I had expended a lot of effort growing them from seed.

Remedies

See the main page on mite problems for a discussion of remedies.


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  Last modified: 2002-08-26  Copyright © 1997-2002.  Kein-Hong Man.  all rights reserved