December 14, 2018
My favorite cases this year were redbud and peach trees, both had signs of winter injury, and two fungal pathogens were tagging along, Botryosphaeria causing cankers (in redbud) and the fungal wood rot caused by Schizophyllum commune on both peach and redbud. These cases are fascinating, the cold injury happened first and the savvy pathogens come to join the party!
Next year will bring with it new opportunities for HHPN readers to learn new things, brush up on skills and network with the community. Check out the upcoming horticulture conferences/workshops that me be of possible interest.
Poinsettia plants remain one of the most popular holiday flowers. The familiar red flowers have been joined by even flashier colors to include pastel yellow and vibrant bi-colors. Because poinsettias have been forced into bloom, they need some extra care to keep them healthy and looking good throughout the holidays. Horticulturists with Iowa State University answer several questions related to watering poinsettias.
Holiday wreaths contaminated with boxwood blight. Image courtesy of Purdue Plant and Pest Diagnostic laboratory (PPDL)