• Post category:Bug Bites

Christmas Tree Stowaways

Recently, a northern saw-whet owl was in the news.  The poor little guy was hanging out in a giant spruce tree 170 miles north of New York City (NYC). Unfortunately for the owl, the tree was selected as The Tree for the holiday display in Rockefeller Center in Manhattan.  The tree was cut down and wrapped up with the poor owl in it. The half scared to death owl wasn’t discovered until the tree was being prepped for display in NYC.  While the owl’s story is interestingly sad, less charismatic critters get hauled into homes on Christmas trees each year. The most common is the Cinara aphid.

Cinara aphids, is a group (genus) of aphids that tend to be large and brown to black in color. They are also called giant conifer aphids. They may or may not have wings. Cinara aphids are often brought indoors on Christmas trees, especially in the Carolinas. Even though they are plant feeders, many people think Cinara aphids are ticks and can cause them great concern when they see several hundred walking around the holiday tree. They are harmless and will not hurt people, pets or household items.

Cinara aphid close up
Cinara aphid, also known as giant confier aphid are often found on Christmas trees. Photo credit: thatmacroguy, Shutterstock
Aphids on Christmas Tree. Photo Pavel Metluk
Harmless Cinara aphids and other insects are often brought into homes on Christmas trees. Photo credit: Paval Metluk, Shutterstock.

If you or your clients see Cinara aphids or any unusual insect guests over the holiday, think about how they may have arrived. In many cases it may be plant material or firewood recently brought into the home for the holidays. Taking firewood or infested plant material back outdoors or mechanically removing pests like Cinara aphids around a Christmas tree usually does the trick, with no insecticide treatment necessary.

To read more about Cinara aphids see: https://christmastrees.ces.ncsu.edu/christmastrees-cinara-aphids-on-christmas-trees-in-north-carolina/

To read more about the sojourn of the Christmas tree owl, see: https://www.washingtonpost.com/nation/2020/11/19/rockefeller-center-christmas-tree-owl-rescued/

Author: Dr. Eric Benson, ,PhD, BCE,  Professor Emeritus & Extension Entomologist,  College of Agriculture, Forestry and Life Sciences