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BACKGROUNDRepellents are a common method for preventing flea bites, making an effective system for flea repellent screening advantageous. We describe an improved technique to facilitate repellent activity screening of numerous plant‐based Ctenocephalides felis (cat flea) repellents.
RESULTSTwo long strips of filter paper were impregnated with test compounds (dissolved in ethanol) and ethanol only,...