Looking for a Salmon Safe Fungicide to use for Pythium

Asked April 8, 2019, 4:32 PM EDT

We are a salmon safe certified native plant nursery and I'm trying to find a fungicide that we can use on Vine maple for pythium that is also allowed under salmon safe guidelines. The following is the list of products that are not allowed: azoxystrobin *, copper sulfate**, maneb *, thiram, bensulide, fenarimol, picoxystrobin*, trifloxystrobin *,,captan, folpet*, propiconazole, triflumizole, carboxin, iprodione, pyraclostrobin *, chlorothalonil* (4), mancozeb, quintozene (PCNB) It is also possible to request a variance for any product without an asterisk if necessary.

Washington County Oregon

1 Response

Hello there - thank you for your question!

I used the PICOL database to find fungicides registered in Oregon for control of Pythium on ornamentals. There are 160 products. I sorted them in this spreadsheet, and colored the prohibited ingredients red.

Be advised that I don't know about the products' effectiveness.
Look for product labels that don't mention fish in the "ENVIRONMENTAL HAZARDS" section to identify those products with the lowest risk. You can use the EPA Reg. No. to look up labels on the ODA website here:

Some products may not be labeled for the site you need. Some may be for indoor use, some may be restricted-use products. There is still some work to do with the list I provided. Please let me know if you run into roadblocks as you browse to find the right product for your needs.

All the best- Kaci
Oh - Here's a link to the PICOL database: