Help with what this is - Ask Extension
Not sure what this is and how to treat It is on most of our pine trees. We have looked online but not sure exactly what it is or how to treat. Thank...
Knowledgebase
Help with what this is #757484
Asked June 21, 2021, 1:41 PM EDT
Not sure what this is and how to treat It is on most of our pine trees. We have looked online but not sure exactly what it is or how to treat. Thank you
Adams County Colorado
Expert Response
Hello Emma
These look like wooly aphids. They can sometimes be controlled by just spraying them with a hard stream of water to knock them off the trees. Depending on the size of the pines that may or may not be practical. The publication below with give you some other control options.
https://extension.colostate.edu/topic-areas/insects/aphids-on-shade-trees-and-ornamentals-5-511/
