Long-lasting repellent activities of eco-friendly polyurethane system for controlled citral against melon fly

Using plant essential oil instead of chemical pesticides to control melon fly (Bactrocera cucurbitae (Coquillett)) is still a great challenge in agricultural practices, which must effectively slow down the volatility rate of plant essential oil. In this study, citral as a natural plant essential oil was blended with environmentally friendly castor oil based waterborne polyurethane (PU). The interaction, chemical resistance, adhesion property and...