Orchid Pests and Diseases

Orchid Pest and Disease Index


Orchid Pests and Diseases

Orchid Pests and Diseases

by Sue Bottom contains pictures of orchids afflicted with various problems to assist you in diagnosing problems. Email us a description and picture of any problem you might be having and we'll see if we can figure out a cure.
Some More Links:
Orchid Pests & Diseases and Video Library, American Orchid Society
Pests and Diseases, Martin Motes, Motes Orchids
Identification and Control of Orchid Ailments, Hark Orchideen
Pests and Diseases of Dendrobiums, University of Hawaii
Orchid Pests and Diseases

Pesticides and Fungicides & Bactericides

Applying Chemicals

Applying Fertilizers and Chemicals, Sue Bottom
Home Application of Fungicides, Alabama Coop Ext
Conversion Tables and Horticultural Formulas, University of Georgia


Pesticides for Orchid Pests, Sue Bottom
Selected Miticides for Ornamental Plants, University of Florida
Insecticide Rotation, Four Star Greenhouse

Fungicides and Bactericides

Fungicides & Bactericides for Orlchid Diseases, Sue Bottom
2018 Guide to Ornamental Fungicides, Syngenta
Bactericides for Ornamentals, Ann Chase, GPN What's New
Fungicide Mobility, Purdue University
Fungicide Rotation, Purdue University
Orchid Pests and Diseases

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
Orchid Pests and Diseases

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 Pests and Diseases

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 Pests and Diseases

Orchid Virus

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.
The opinions and recommendations published herein are those of the authors. The St. Augustine Orchid Society disclaims responsibility for any losses or damages that may be attributed to the use or misuse of any material or any opinion published in these articles and on the website. This website and the photographs, articles and content are protected by copyright and no part of them may be reproduced or re-used without the permission of the author.