Growing Orchids Part 3: Pests and Disease

Pests and Disease problems are not common with orchids.  If you encounter any they are usually a product of improper watering, feeding or temperature and light levels.  Always buy orchid specific products when combating any problems.

Pest Problems

  • Aphids: Green, yellow or black, tiny insects usually found on new growth.
  • Fungus Gnats: Tiny black flies.
  • Mealybugs:Waxy, cottony appearance.
  • Scale: Tiny, yellow, cream or brown limpets.
  • Spider Mites: Reddish spots on leaves indicate spider mite. Hard to see with the naked eye.
  • Thrips: Soft bodied and similar to aphids in size.

Disease Problems

Orchids can become infected with viral diseases however it’s fairly uncommon. They can easily spread from plant to plant and once they have been infected they can not be cured.

Fungus Problem

Prevention is the key to combating fungus problems. Do not over water, keep the air circulating and re-pot orchids if the medium starts to look decayed and old. When blotchy areas begin to appear on leaves, either black, brown or yellow in color and the plant appears droopy it may be an indication that the plant has a fungal problem.
Common fungus include:

  • Black Rot:Found on roots and leaves.
  • Root Rot:Found on roots.
  • Leaf Spot:Found on leaves.

Growing Orchids Part 1: Getting Started
Growing Orchids Part 2: Growing Conditions
Growing Orchids Part 4: Maintenance
Orchid Care Sheets

Share this with your friends:Share on FacebookTweet about this on TwitterPin on PinterestEmail this to someone

Trackbacks

  1. [...] Orchids Part 1: Getting Started Growing Orchids Part 2: Growing Conditions Growing Orchids Part 3: Pests and Disease Growing Orchids Part 4: Maintenance and Orchid Care Sheets Filed Under: In The Garden, Orchids, [...]

Speak Your Mind

*