The most common way of acquiring pests is buying an infested plant. Aphids easily colonize clean plants when they are grown close together, allowing movement from plant to plant. Winged aphids may colonize orchids that are outdoors, or indoors and in greenhouses where air currents from fans help spread the critters.
Also, do aphids kill orchids?
Aphids do not cause damage to orchids by eating their leaves or stems. Instead, these small, often wingless, soft-bodied, pear-shaped noxious insects use their long, agile mouths to suck sap from orchid leaves and stems. When they do this, they distort the shapes of delicate orchid leaves and flowers.
Also to know is, what can I spray on aphids to kill them?
Neem oil, insecticidal soaps, and horticultural oils are effective against aphids. Be sure to follow the application instructions provided on the packaging. You can often get rid of aphids by wiping or spraying the leaves of the plant with a mild solution of water and a few drops of dish soap.
