Q/A #61 - Concerned about Propagating Mosquitoes

QUESTION:
I've divided my older Sarracenia that was in my bog. Now I have 9 pots of Sarracenia that will be in trays of open water. I'm concerned about propagation of mosquitoes. Do you use any mosquito control?
(Submitted in April 2019.)

RESPONSE BY JEFF DALLAS:
Yes, there's an easy fix for this. Use mosquito dunks, and you can find them at your local garden center. These kill mosquito larvae and last up to a month. For small trays you can break them apart. I use 1/4 of a dunk for standard horticultural trays. These dunks are harmless to mammals, birds, amphibians and non-target insects. The active ingredient is a bacterial toxin (BTI) that is specific to fly family insects, they also kill fungus gnats. We use them in our winter time water tanks in the greenhouses to control fungus gnats.

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