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Cucumber, Pumpkin, Squash - Commercial Fungicides


Fungicides registered for COMMERCIAL use on Cucurbits (Cucumber, Squash, & Melons) in Utah, organized by Mode of Action (MoA). For treatment on other cucurbits, always check the label first.

Active Ingredient Brand Name MoA Powdery Mildew Gummy Stem Blight/Black Rot
thiophanate-methyl Incognito, Topsin 1 X X
tebuconazole Monsoon, Orius, Tebu-crop, Tebuzol, Toledo 3 See label See label
mefenoxam + chlorothalonil Ridomil Gold Bravo SC 4/M5   X
fluxapyroxad + pyraclostrobin Merivon 7/11 X X
cyprodinil + fludioxonil Switch 9/12 X X
azoxystrobin Quadris, Satori 11 X X
kresoxim-methyl Sovran 11 X X
pyraclostrobin Cabrio 11 X X
polyoxin D zinc salt Affirm, Ph-D 19 X X
sulfur CosavetOB, KumulusO, Microthiol DisperssOB, Micro SulfOB, SulfurDFO, ThioluxO M2 X  
chlorothalonil Bravo, Chloronil, Echo, Equus, Initiate M5 X X

Note: The information provided is not an endorsement or recommendation for any particular product. Always read the label before applying and follow the directions. Some of these materials may be tank mixed with other herbicides.


B= Biopesticide
O= Organic