Identifying Plant Viruses in the Home Garden
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Collapse ▲RADIO TRANSCRIPT
June 19, 2023
Taylor Campbell
This is Taylor Campbell, horticulture extension agent with North Carolina Cooperative Extension, Burke County Center. Today’s program is on plant viruses.
Just like humans, plants are susceptible to viruses, and this time of year is when plant viruses start to show up in the home garden. However, plant viruses are different from human viruses in many ways. Plant viruses are caused by microscopic organisms that live in soil, seeds, leaves, shoots, roots, or any other plant tissue. Infected tissue can be carried and spread by animals, wind, and people. There are thousands of plant viruses out there, including Tobacco Mosaic Virus, Tomato Spotted Wilt Virus, Plum Pox Virus, Leafroll virus, and more.
While each virus causes a unique set of symptoms, it is important to first know the correct terminology to use when talking about symptoms. Black or brown leaves or stems are known as necrosis. Yellowing is referred to as chlorosis. Are the leaves curling, or does the plant seem to not be growing correctly? This is referred to as stunting. Are there spots, mottled areas, or rings? Take note of that as well. Always take photos to capture the plant’s progress over time.
It is important to remember that even if a plant is diseased, fruits and vegetables from that plant are still safe to eat.
More often than not, these issues come from soil nutrient deficiencies, heat damage, poor soil drainage, or a combination. However if you think you may have a plant with a virus or other issue, contact the N.C. Cooperative Extension, Burke County Center at 764-9480.