Permetrol is a broad spectrum insecticide for your greenhouse. It is safe on people and pets. Spray your plants' foliage and roots, (not your open flowers). It's residual effect lasts for up to 7 days.
If you know that you have a bug problem. But don't know which one. Permetrol is your go to choice.
Suggested application is 1 tablespoon x gallon of water. Spray your orchids once a week, for three weeks.
Available in 8oz., 16oz., 32oz., Gallon.