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.

Link #1 Tissue Culture

Link #2 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

Copy_3_of_hawaiian_double_white.jpg (33555 bytes) x_candida_double_white.jpg (69192 bytes)

The deadlier Colombian Datura Potyvirus (CDP) HAS NOT  been detected in the US. .... yet!
CDP has seriously damaged Brugmansia collections in Europe and in South America and it has destroyed food crops in other countries.
The question "How do you know CDP is not already in the USA?" has been asked in an attempt to defend unregulated, unquarantined, Brugmansia trades and imports. Response: "Regulated and properly quarantined", or "not regulated and no quarantines" ... Let's hope none of us imports or exports this deadly virus to any country.

Contact your State Department of Agriculture 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. 

Agrobiologicals.com

UMN

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

WebGarden

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.
Weeds:
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:   http://www.ars.usda.gov/research/publications/publications.htm?SEQ_NO_115=182622

 

More about viruses

Brugmansia Diseases

Fusarium and Verticillium Wilts
Tomato Fusarium Wilt   
Fusarium Wilt of Tomato   
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 Wilt
 
Phytophthora Phoma
Phytophthora Root Rot
Phytophthora a genus of Oomycetes is not a fungi
Phoma
Phoma Blight
Phoma Black Stem 
 
Botrytis
Botrytis Blight   
Botrytis Blights  
Botrytis
Botrytis Gray Mold in Greenhouse Floral Crops
Botrytis Gray Mold of Greenhouse & Field Tomato
 

Site Map

 
Disclaimer: While the information at this Web site is believed to be true and accurate, the American Brugmansia & Datura Society Inc. (ABADS) and the authors cannot accept any legal responsibility for any errors or omissions that may have been made. ABADS makes no warranty, expressed or implied with respect to the material contained herein. Copyright of all original Images submitted for public display will be retained by the contributor. The contributor does, however, agree to grant ABADS a non-exclusive license to modify, reproduce, and distribute all images in the manner that it sees fit. You must request written permission from ABADS Board of Directors in order to copy and publish any part of this website.


©American Brugmansia & Datura Society Inc. (ABADS)
February 10,  2002-2005 All Rights Reserved
Website designed by:
American Brugmansia & Datura Society

Guest Forum
 

Related Links

Partner Links