Hostas and Southern Blight - Knowledgebase Question

Lowndesboro, Al
Question by tigrtail
May 5, 2009
10 yr ago As a deep south gardener, I was told I could not raise Hostas. I now have over 500 in various gardens. I usually lost 3 to 5 hostas a year to Southern Blight or crown rot.

I have found 2 effective products that have helped me stamp out the fungus.
Regular clorine bleech at 10 to 25 pct solution and Prostar 50/70 sprayed 3 times per yr stops SB.
Got any other solutions to SB?

Answer from NGA
May 5, 2009


I'm glad to hear you've managed to avoid southern blight on your hostas. It is typically not responsive to fungicides - once you determine your plant has it, it's too late - but soil fumigation is often used to kill the soilborne pathogens. I think your bleach solution is probably what is keeping the pathogens from moving in the soil. I don't have any other control suggestions, but best wishes with your hostas~

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