Jamie:
I have grown the 2 common types of Fukien tea used for bonsai (Carmona microphylla & Ehretia microphylla) for a few decades down in south Texas in all day direct sun light, without any ill-effect. These are tropical plants.
As you will see in the like below there are a few types of “Fukien tea”. With the 2 common types the 1st (Carmona) is a very slow grower, has very small leaves, it flowers and seeds. The 2nd type (Ehretia)is a faster grower, has larger leaves, flowers and
usually doesn’t come to seed.
Picking them off with tweezers might be easiest. You've probably done this by now...lol
During the growing (here its 8-9 months) I try to do a
preventive insecticide and fungicide treatment every month. When spraying for insects, be careful with the type of insecticide you use as “
Fukien tea is very sensitive to insecticides, and Diazinon will kill the tree” (be careful about applying the wrong insecticide to some trees…i.e. NO Malathion on Buttonwoods, NO Kelthane or Neem oil on elms and No
Diazinon on Fukien teas to name a few ). ALWAYS READ THE LABLES! Research this site for more on types of pest problems for most of your trees.
http://www.bonsai-bci.com/species/fukien.html
Good luck, redhawk