I used it in my vegetable garden but wondered why use it for the plumeria?

Mindy

Hope that helps,
Wendy

Reasons I chose to try it:
It is technically considered organic, a biological agent.

It says it is only toxic to insects that eat your plants, leaving the beneficial insects safe. *Although, Spinosad is very toxic when WET, and it will kill a big you spray directly - you are to spray when birds, bees and other beneficial insects aren't so active. So it should help to not throw off the balance of insects as much as some other pesticides.

It is mild enough that it can be used weekly. This is something to consider, as I like it because it hadn't burned my plants or anything, but it does require weekly application.

Our bees are dying off at an alarming rate and neonicotinoids are the main reason, mostly from large-scale agricultural application--how ironic that to grow food they're using something that will prevent pollination of our food!--but it's still important for the home gardener to keep these products out of our yards and support our local honey bee populations.

I've linked to Beecharmers, which mentions imidacloprid, which I believe Kms2 said gave him even more spider mite problems after use to treat thrips, IIRC.