Verticillium Problem

by Dianne Fahselt
(London, Ontario, Canada)

I think my one potted tomato may have Verticillium, those in a bed are OK.


Is there something I could use to treat soil in the pot? More than half the leaves on the plant are browning on the edges, drying and folding inward. Young fruits appear unaffected.

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Jul 29, 2019
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Verticillium Treatment
by: Eric

Refer to this page for some information on Verticillium if you haven't already. http://www.growgardentomatoes.com/verticillium-wilt.html

By far the best remedy is to avoid the disease by planting Verticillium-tolerant tomato varieties.

Verticillium wilt can’t be cured once it enters the plant. It’s best to remove and destroy small, easily replaced plants. The disease remains in the soil after you remove the plant, so don’t plant another susceptible species in the same area.

It is important to seperate and properly dispose of any infected plants or debre. Also it is recommended to wash your tools with bleach or rubbing alcohol to slow down the spread.

Verticillium wilt treatment for trees and shrubs focuses on giving the plant the best possible care to build up its resistance. Water the plant regularly, and when possible, provide afternoon shade. Fertilize on schedule, using a low-nitrogen, high-phosphorus fertilizer. Prune off dead and dying branches.

You can often get rid of the verticillium wilt fungus in the soil by solarization. Soil solarization heats up the top 6 inches or so of soil to temperatures high enough to kill the fungus. Prepare the soil by tilling or digging and then wetting it down. Cover the area with a clear plastic tarp and bury the edges under a few inches of soil to hold it in place and keep the heat in. It takes three to five weeks of bright sunlight and warm temperatures for the soil to heat up enough to kill the fungus. In your case I would start with new soil since it is potted.

Verticillium wilt is a devastating and incurable disease, but with special care and attention, you can preserve the plant and enjoy it for several more years.

Read more at Gardening Know How: Verticillium Wilt Treatment: What Is Verticillium Wilt And How To Fix It https://www.gardeningknowhow.com/plant-problems/disease/verticillium-wilt-treatment.htm

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