Pests On Orchid
I have a lovely orchid which has flowered for the last two years and now that the last flower has dropped off I have noticed small black flies hovering at the base of the leaves. The plant looks healthy enough and what looks like a new flower spike is shooting up from the upper part of the stalk and is a darker green than the roots.
Is there a pesticide I can use that will not harm my orchid?.
I have left the old flower stem and cut it back to the first nodes in the hope that it will flower for a third year,but should I let this new growth carry on growing.
Yours in anticipation,