Tomato Plants
Q.

reusing soil where tomatoes have wilted

Zone forestville sydney | Anonymous added on December 17, 2018 | Answered

I recently had a large tomato in a pot wilt suddenly. It had plenty of water, Rather than throw out the soil I used it to top dress patch of grass. Now that grass patch has died. Would the same thing as wilted the tomatoes caused this?

A.
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drtreelove
Answered on December 17, 2018

Yes it is possible that a soil borne fungus disease affected the tomato plant and was transmitted to the grass. I suspect "fusarium wilt".

It is difficult to control, but a preventive approach is keeping the grass and other nearby plants as healthy as possible with good soil fertility and water management.

There is a biological fungicide specific for fusarium prevention, but it should not be considered as a cure for active infections, only for prevention of further infections.

Mycostop is available in the US, I'm not sure about Australia:
https://www.planetnatural.com/product/mycostop/

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