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Evaluation Of Cay-1, An Experimental, Natural Fungicide, For Control Of Strawberry Pathogens, Kenneth J. Curry, Maritza Abril, Anthony J. Delucca, Stephen M. Boue, Barbara J. Smith, David E. Wedge
Evaluation Of Cay-1, An Experimental, Natural Fungicide, For Control Of Strawberry Pathogens, Kenneth J. Curry, Maritza Abril, Anthony J. Delucca, Stephen M. Boue, Barbara J. Smith, David E. Wedge
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CAY-1 is an experimental, natural product being tested as a potential fungicide. This saponin isolated from Capsicum frutescens interacts with membrane sterols causing leakage of cell components and ultimately cell death in a variety of fungi. CAY-1 and the commercial fungicide captan were tested in an in vitro doseresponse dilution-broth assay. They caused at least 85% growth inhibition of the fungal pathogens Colletotrichum acutatum, C fragariae and C. gloeosporioides when tested at 3.0 μM. Even though CAY-1 strongly reduced the growth of these fungal pathogens in laboratory assays and prevented anthracnose development in detached leaf assays, it did not …