Synergistic pesticidal compositions and methods for delivery of active ingredients

A pesticidal composition comprising:

• one or more pesticidal agents comprising a pesticidal natural oil or a component thereof, a strobilurin, an azole, fludioxonil, chlorothalonil, cyprodinil, metalaxyl, isopyrazam, penthiopyrad, oxathiapiprolin, mancozeb, chlorfenapyr, or spinosad, wherein the strobilurin comprises pyraclostrobin, azoxystrobin, picoxystrobin, or trifloxystrobin, wherein the azole comprises difenoconozole, propiconazole, epoxiconazole, tebuconazole, prothioconazole, or wherein the pesticidal natural oil or component thereof comprises thyme oil, garlic oil, lemongrass oil, rosemary oil, wintergreen oil, spearmint oil, cinnamon leaf oil, nootkatone (+), rose oil, peppermint oil, clove leaf oil, geranium oil, oregano oil, tea tree oil, azadirachtin, or karanja oil;
• and
• one or more substituted saturated or unsaturated C4-C10 aliphatic acids or agriculturally compatible salts thereof,
• wherein said one or more substituted saturated or unsaturated C4-C10 aliphatic acids produce a synergistic effect on the pesticidal activity of the pesticidal composition in comparison to the pesticidal activity of the pesticidal agent alone and are present in a respective synergistically active concentration ratio between about 1:100 and 10:1.