Tempo SC will not actually repel mosquitoes, but using it in target areas will help reduce the number of mosquitoes in your yard. Tempo SC Ultra should be sprayed on the underside of leaves on trees and bushes to help control mosquitoes. Mosquitoes like to hide on the underside of leaves during the heat of the day so spraying there will help the mosquitoes come into contact with the Tempo SC.
Tempo SC Ultra is not labeled for greenhouse or nursery use.
We would recommend using Talstar P (Talstar One). It is labeled for use in a greenhouse as well as for thrips and various other pests. It is also safe to use on the orchids.