Orchid Pests and Diseases: Overview

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Orchid Pests and Diseases

Orchid Pests and Diseases

Trying to Diagnose a Problem?
Orchid Pests and Diseases contains pictures of orchids afflicted with various problems to assist you in diagnosing problems.
Some More Links:
Orchid Pests and Diseases and Video Library, American Orchid Society
Pests and Diseases, Martin Motes, Motes Orchids
Diseases of Phalaenopsis and Other Orchids, Hark Orchideen
Pests and Diseases of Dendrobiums, University of Hawaii
Home Remedies, First Rays
Pesticides, Fungicides and Bactericides
Pesticides, Fungicides and Bactericides


Pesticides for Orchid Pests, Sue Bottom
Selected Miticides for Ornamental Plants, University of Florida
Insecticide Rotation, Four Star Greenhouse (supplier of Proven Winners)
Pesticides, Fungicides and Bactericides

Fungicides and Bactericides

Fungicides & Bactericides for Orchid Diseases, Sue Bottom
Guide to Ornamental Fungicides, Ann Chase, Syngenta
Bactericides for Ornamentals, Ann Chase, GPN
Fungicide Mobility, Purdue University
Fungicide Rotation, Purdue University
Orchid Ailment Links

Orchid Pests

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)
Orchid Ailment Links

Orchid Diseases

With orchid diseases, there are chemicals that can prevent different diseases from occurring, but there are very few chemicals that can cure a disease once your plant is infected.
Some More Links:
Part 1 - How Do Orchids Respond to Disease, Sue Bottom
Part 2 - Bacterial and Fungal Infections, Sue Bottom
Part 3 - Bactericides and Fungicides, Sue Bottom
Orchid Hygiene, Sue Bottom
Hydrogen Peroxide, Sue Bottom
Fungal and Bacterial Orchid Diseases, Dr. Huang
Orchid Ailment Links

Physiological Problems

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.
Orchid Ailment Links

Virus in Orchids

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.