Author: Gail Ruhl

Imprelis Herbicide Injury: 2011 PPDL ‘Host’ List

We have received questions pertaining to susceptibility of plants to Imprelis. We do not have a list of "susceptible vs. not susceptible" plants because we do not know exactly which plants might be affected under certain growing conditions. However, based...
Read More

Herbicide damage on Spruce and Pine

The Plant and Pest Diagnostic Lab (PPDL) has recently received several samples of Norway spruce and white pine with symptoms that appear to be associated with injury caused by synthetic auxin (growth regulator type) herbicides. Typical off-target symptoms caused by...
Read More