Iowa CCA Good Advice – June 2007

Purple Corn and Phytophthora

Submitted by Rich Pope

Several people from around Iowa reported answering questions about corn that has developed pronounced purple coloring. For those of you who are or have clients concerned with purpling of corn please visit the corn management webpage: for the article posted on this matter. Extension Plant Pathologist Alison Robertson and her new graduate student Silvina Stewart report that they are collecting samples of phytophthora for use in their research program and ask that if you have suspected phytophthora-infested plants to consider sending them to her lab. This research is to focus efforts in developing phytophthora-resistance based on what races of the pathogen are present. Samples will be race tested, and later this summer or fall they will share with you the races in your submitted samples. Your assistance is completely voluntary! (more…)