Enjoying lovely poinsettia plants through the holiday season is steeped in tradition. For centuries, this ornamental has been used to signify love and warmth – and its present-day use in holiday ...

and Aleurodiphilus sp., below levels found on nontreated plants. Phytotoxicity to poinsettia occurred on plants treated with dimethoate, carbaryl, methamidophos and insecticides containing piperonyl ...