What temperature are you keeping your greenhouse at? Remember that most insects slow down their activity considerably once things drop below 60F.
I don't recommend this if you have beneficial insects already present in the environment, but spinosad is definitely the best insecticide I've used for controlling thrips.
Alan Clashman wrote:Thanks. I am thinking of cleaning everything off the flow table. Washing and setting the rafts outside for a couple of days to freeze. Then use an organic soap on the plants in dirt
Thanks for the idea will look into that
Always great tiger advise from others
That should help. Spinosad is also USDA Organic, in case you weren't already aware of that.