Brugmansia Virus and Diseases

Many Brugmansia never show major symptoms of the many viruses they are susceptible to, and they live long and happy lives.

Insects, dirty hands and tools, exposure to tobacco products, exposure to other genera that are host to viruses, and mechanical wounds
(such as taking cuttings for propagation purposes), are the most common reasons for Brugmansia plants becoming infected with viruses.
Neglect, lack of water, lack of nutrition, excessive heat, cold weather and freezes, all contribute to and create stressful conditions for Brugmansia. During these stressful times the virus symptoms are most evident. When properly cared for the plant's virus symptoms often disappear and the plant resumes normal and healthy looking growth. ... but the plant is still infected!
 Precautions Home Gardeners can take against additional viruses

Pamper your plants
1-Water plants properly
2-Feed your plants properly
3-Keep sap sucking insects away from your plants: Aphid, Thrip, Whitefly
4-Wash hands frequently when handling your plants
5-Do not smoke, dip, or chew tobacco around your plants
6-Avoid using other plants, that are known host for viruses. Heirloom Tomatoes, and unfortunately Datura, are not good choices as companion plants for your Brugmansia.
7-Keep propagation tools sterile. Boil tools in water 5 minutes, wash with strong soap. Dipping tools in household bleach is
not effective for virus decontamination
8-Do not reuse the soil from an obviously sick plant. The roots from infected plants are also infected. You can not remove every tiny root from the soil.
Source of information UMN
9-Protect your plants from excessive heat (especially B. sanguinea, B. flava, B. vulcanicola), and from cold temperatures.


Viruses do not grow in the stem tips of plants. Tissue Culture (TC) (heat-treating and meristeming) is done using these stem tips. Plants propagated by this method do not remain virus free for life.

  Rancho Tissue Technologies

The symptoms of many viruses are identical and if that's not bad enough, your plant can have more than just one kind of virus! Without having your plant tested it is difficult to tell with the naked eye which virus your plant has.

One of the many kinds of Mosaic Virus

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Contact your State Department of Agriculture or your local extension office when in serious doubt about your Brugmansia's health.
They can help with the diagnosis.

Top Brugmansia Viruses throughout the world!

Tobacco mosaic stunts the plants growth, causes blotches of mixed greens and yellows combined with normal leaf color, deforms fruit (seedpods) and flowers. Tobacco mosaic greatly reduces the looks of the plant but rarely kills it. As with all plant viruses, once the plant is infected with Tobacco mosaic, it is infected for life. Tobacco mosaic is one of the most common plant viruses found throughout the world. 

UMN               Home page for Plant Virology

Common plant host for Tobacco Mosaic
African Violet, Tomato, Pepper, Petunia, Snapdragon, Delphinium, Marigold, Cucumber, Squash, Spinach, Celosia, Impatiens, Phlox, Zinnia, Aster, Banana, Chrysanthemum, Geranium, Gladiola, Grapes, Kalanchoe, Roses, Potato, Datura and more.

Not good companion plants for Brugmansia!

Tomato Spotted Wilt stunts the plants growth, causes necrotic streaking of stems and petioles, stem wilt, deformed leaves, streaks, blotches, and vein yellowing. Sometimes plants never show symptoms other than turning yellow and then they die. Tomato Spotted Wilt is another of the most common plant viruses found throughout the world.

Plant Viruses Online

Common plant host for Tomato Spotted Wilt
Sweet pea, Cucumber, Melon, Pepper, Tomato, Chrysanthemum, Cyclamen, Gypsophila, Lily, Lisianthus, Stocks, Anemone, Aster, Datura, Begonia, Foxglove, Nasturtium, Poppy, Sunflower, Viola and many more.
Bindweed, Buttercup, Chickweed, Clover, Dandelion, Groundsel, Stinging Nettle and more.

Not good companion plants for Brugmansia! 



The deadlier Colombian Datura Potyvirus (CDP) has been detected in the US.

CDP has seriously damaged Brugmansia collections in Europe and in South America and it has destroyed food crops in other countries.
This website reveals that it has been detected in Florida:


More about viruses

Brugmansia Diseases

Fusarium and Verticillium Wilts
fusarium oxysporum fusarium and verticillium           fusarium and root rot
Tomato Fusarium Wilt   
Fusarium Primer
Floriculture and Ornamental Nurseries Fusarium Wilt  
Fusarium in container tree nurseries
Fusarium and Verticillium Wilts of Tomato, Potato, Pepper, and Eggplant
Verticillium Wilt of Tomato        Verticillium Wilt        verticillium
Phytophthora Phoma

Phytophthora a genus of Oomycetes is not a fungi

Phoma Blight
Phoma Black Stem 

Botrytis   Botrytis Blight 

Botrytis Gray Mold of Greenhouse & Field Tomato


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February 10,  2002-2006 All Rights Reserved
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