Brugmansia

Question

I have tiny holes on nearly all of the leaves on my Brugmansia.

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Answer 1

This looks like damage from a chewing insect. Chewing insects include mainly caterpillars, weevils, beetles and beetle larvae, and grasshoppers. Weevils are known to feed on Brugmansia, so I think they are the most likely.

http://pss.uvm.edu/pss123/tpbrug.htm
http://ipm.ucanr.edu/PMG/GARDEN/FLOWERS/INVERT/weevil.html