Could anyone gives some advice of how to get rid of Mealy bugs on cacti...for good?
Two years ago we purchased some cacti from a reputable local cacti nursery which we have been a repeat customer for many years. The new cacti didn't show any sign of infestation but not long after they arrived the new plants and nearly all our old collection were infested and we even lost some that had been with us for a very long time. It was clear it started with the new plants.
We have tried various brands of general (supposedly systemic) bug killer spray from garden centres but so far we don't seem to be able to completely get rid of them. At first they look like they've gone but sooner or later (even some months later) they reappear. I guess it's very difficult to find and kill any eggs.
We're getting desperate so any suggestions or secret tips would be really appreciated. Thanks a lot!!
Edited by Gaz, 12 December 2011 - 13:15 PM.