Q-Tips Grow on Trees?

Oak Eriococcin on willow oak in Raleigh. Photo S.D. Frank

Do Q-Tips grow on trees? You may think so if you walk down Hillsborough Street in Raleigh.  The willow oaks are covered in white cottony puffs. These are the egg cases (ovisacs) of Oak Eriococcin a unique scale in the family Eriococcidae. Right now the eggs within these ovisacs are hatching and crawlers are moving out to make their way.  You can  also find some specialist predatory beetle larvae in and around the ovisacs but they do not seem to keep up with the scale on stressed urban trees. See recent Pest News Article here.

2017-06-30T14:43:17-04:00 April 17th, 2012|Categories: Landscape IPM, Urban Ecology|Tags: , , |

About the Author:

Steve Frank
I am broadly interested in the ecology and management of arthropod pests. Herbivorous arthropods cause extraordinary damage to plants in agricultural, urban, and natural ecosystems. Understanding interactions between pests and their environment, plant hosts, and natural enemies can improve management practices and reduce pesticide applications.