Fusarium wilt

Question

I was wondering if there is any seed treatment or fungicide that will help or prevent Damping off disease or fusarium wilt ? We are an organic row crop operation in Northern California and are having problems in our crops this year.

Thanks

Answer

Damping off tends to be caused by fungal like organisms called oomycetes, and Fusarium wilt is caused by a fungus. They are quite different organisms and tend to require different chemistries or seed treatments to control properly. None of the chemistries I'm aware of would fit into an organic production scheme though.

The best organic solution would require some type of fumigation with CO2, heat, or both. You would essentially be starving the pathogens of oxygen to reduce their population. You can minimize oomycetes and damping off with excellent water control, but it is not a guarantee. The only seed treatment I'm aware of that might address this and is OMRI certified is the Heads Up seed treatment.

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Fusarium wilt

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