Orchid Pests and Diseases: Overview
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Despite your best efforts to provide the best environmental conditions for your orchids, there are some pests that can wreak havoc. The good news with orchid pests is that there are chemicals that can kill the invaders, the bad news is that they can cause quite a bit of damage before you are aware of their presence.
Some More Links:
Featured Creatures, University of Florida
Insect and Arthropod Pest ID and Mgmt, University of Georgia
Fungus Gnats, Dr. Paul J. Johnson, South Dakota State University
The Usual Suspects (Sue Bottom, SAOS)
Often orchid pests and diseases are blamed for problems you may encounter, but sometimes the culprit is some cultural misstep that either created the problem or created the environment which allowed a pathogen to thrive.
Virus not only can give your orchid a case of ugly plant syndrome, it can ruin the flowers that you’ve been waiting for for so long. Severe color break is characterized by variegation in the flower.