The present invention relates to a pesticidal control device that includes atleast one pesticidal active ingredient,cellulose fibers, and a polymer or polymer matrix. The combination of thecellulose fibers with the polymer allows for a higherloading of liquid pesticidal active ingredients within the pesticidal controldevice, maintains the active ingredient within thecontrol device during transportation, storage and handling, and provideshigher efficacy or control of pests during treatment. Thepesticidal control device may be an ear tag, collar, or bee strip.
