Two ficus, two treatments

Adam's Art and Bonsai Blog

Two trees, one a ficus microcarpa “retusa”, one a ficus salicaria, are before us.
First, though, some diagnostics for your perusal.
This leaf damage
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is caused by a bug called a thrip.
It can affect ficus benjamina, ficus microcarpa, and most broad leaf ficus.
20130618-212226.jpg
When you peel the folded leaf apart, you’ll see several life cycles of the thrip.
The black ones are adults. The white ones are nymphs. Then there is a scale like phase and a cocoon like stage.
In the latter two stages its near impossible to kill the nasty bugs.
My go-to control is Merit granular systemic insecticide.
I will completely defoliate the tree, put those leaves into a plastic bag and throw them away in a trash can with a lid. Then treat with the granular.
There is a sprayed product by Bayer that uses the same active ingredient.
If you are diligent you can…

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